{"id":1132,"date":"2026-03-30T03:35:50","date_gmt":"2026-03-30T03:35:50","guid":{"rendered":"https:\/\/planetarygeardrive.top\/?post_type=product&#038;p=1132"},"modified":"2026-03-30T03:59:15","modified_gmt":"2026-03-30T03:59:15","slug":"311-series-planetary-gearbox","status":"publish","type":"product","link":"https:\/\/planetarygeardrive.top\/ml\/product\/311-series-planetary-gearbox\/","title":{"rendered":"311 Series Planetary Gearbox | Bonfiglioli 311 Replacement OEM"},"content":{"rendered":"<p>&nbsp;<\/p>\n<div style=\"background: linear-gradient(135deg,#1a3549 0%,#245273 100%); border-radius: 12px; padding: clamp(22px,5%,44px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: inline-block; background: rgba(228,205,151,0.18); border: 1px solid rgba(228,205,151,0.4); border-radius: 6px; padding: 4px 12px; margin-bottom: 14px;\"><span style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97;\">Planetary Gearboxes \u00a0\u203a\u00a0 311 Series<\/span><\/div>\n<h2 style=\"font-size: clamp(20px,4.5vw,34px); font-weight: 900; color: #fff; margin: 0 0 12px; line-height: 1.15; word-break: break-word;\">311 Series Planetary Gearbox<br \/>\n<span style=\"color: #e4cd97; font-size: clamp(15px,3vw,22px);\">Direct Replacement for Bonfiglioli 311L1 \u00b7 311L2 \u00b7 311L3 \u00b7 311L4 \u00b7 311R2 \u00b7 311R3 \u00b7 311R4<\/span><\/h2>\n<p style=\"font-size: clamp(13px,2vw,15px); color: rgba(255,255,255,0.72); line-height: 1.72; max-width: 680px; margin: 0 0 20px; word-break: break-word; overflow-wrap: break-word;\">Inline and right angle planetary gearboxes covering <strong style=\"color: #fff;\">1,000 \u2013 1,100,000 Nm<\/strong>, ratios from <strong style=\"color: #fff;\">3.4 to 5,000<\/strong>, and mechanical power up to <strong style=\"color: #fff;\">450 kW<\/strong>. All installation dimensions are fully interchangeable with Bonfiglioli EM \/ ED \/ ET \/ EL series, Brevini BW winch series, Bonfiglioli wheel drives, and track drives \u2014 no modifications required.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 8px;\"><span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(11px,1.8vw,12px); font-weight: bold; padding: 5px 14px; border-radius: 20px; border: 1px solid rgba(228,205,151,0.35);\">\u2713 Inline L + Right Angle R Variants<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(11px,1.8vw,12px); font-weight: bold; padding: 5px 14px; border-radius: 20px; border: 1px solid rgba(228,205,151,0.35);\">\u2713 1,000\u20131,100,000 Nm<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(11px,1.8vw,12px); font-weight: bold; padding: 5px 14px; border-radius: 20px; border: 1px solid rgba(228,205,151,0.35);\">\u2713 100% Load-Tested<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(11px,1.8vw,12px); font-weight: bold; padding: 5px 14px; border-radius: 20px; border: 1px solid rgba(228,205,151,0.35);\">\u2713 MOQ 1 Unit<\/span><\/div>\n<\/div>\n<p><!-- \u2550\u2550 01 WHAT IS IT \u2550\u2550 --><\/p>\n<div style=\"background: #fff; border-left: 5px solid #e4cd97; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 01<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 16px; word-break: break-word;\">Product Overview \u2014 What Is the 311 Series Planetary Gearbox?<\/h2>\n<p style=\"font-size: clamp(13px,2vw,15px); color: #333; line-height: 1.78; margin: 0 0 13px; word-break: break-word; overflow-wrap: break-word;\">The <strong>311 series planetary gearbox<\/strong> is a high-torque industrial gear unit available in both inline (coaxial) and right angle (spiral bevel output) configurations \u2014 designated <strong>311L<\/strong> for inline and <strong>311R<\/strong> for right angle. The 311 frame size sits within the broader 300-series range at <strong>35,000 Nm rated torque and 180 kW rated power<\/strong>, making it one of the most widely deployed sizes in crane, winch, and wheel drive applications.<\/p>\n<p style=\"font-size: clamp(13px,2vw,15px); color: #333; line-height: 1.78; margin: 0 0 13px; word-break: break-word; overflow-wrap: break-word;\">The suffix indicates the reduction stage count: <strong>L1 \/ R2 = 1 or 2 stages<\/strong>, through to <strong>L4 \/ R4 = 4 stages<\/strong>. More stages extend the achievable gear ratio within the same housing dimensions. The full 311 variant range covers ratios from <strong>4:1 (inline) and 18:1 (right angle)<\/strong> up to 2,200:1 and 800:1 respectively \u2014 with worm-combined configurations reaching up to 9,000:1.<\/p>\n<p style=\"font-size: clamp(13px,2vw,15px); color: #333; line-height: 1.78; margin: 0; word-break: break-word; overflow-wrap: break-word;\">This unit replaces <strong>Bonfiglioli Trasmital 311L1, 311L2, 311L3, 311L4, 311R2, 311R3, and 311R4<\/strong> with fully interchangeable mounting dimensions. It is also dimensionally compatible with equivalent units from Brevini (BW winch series, rotary gearbox), Bonfiglioli wheel drives, and track drives. Custom configurations and OEM private labelling are available.<\/p>\n<\/div>\n<div id=\"attachment_1134\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1134\" class=\"wp-image-1134\" src=\"https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/03\/311-Series-Planetary-Gearbox-1-300x300.webp\" alt=\"311 Series Planetary Gearbox\" width=\"500\" height=\"500\" title=\"\"><p id=\"caption-attachment-1134\" class=\"wp-caption-text\">311 Series Planetary Gearbox | Bonfiglioli 311 Replacement OEM<\/p><\/div>\n<p><!-- \u2550\u2550 02 SPECIFICATIONS \u2550\u2550 --><\/p>\n<div style=\"background: #f4f7f9; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 02<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 8px; word-break: break-word;\">Technical Specifications<\/h2>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #777; margin: 0 0 18px; word-break: break-word;\">Dimensional drawings available on request. Confirm your existing variant (L1\u2013L4 \/ R2\u2013R4) before ordering.<\/p>\n<p><!-- General spec table --><\/p>\n<p style=\"font-size: clamp(11px,1.8vw,12px); font-weight: bold; color: #1a3549; text-transform: uppercase; letter-spacing: 0.07em; margin: 0 0 9px;\">311 Series \u2014 General Parameters<\/p>\n<div style=\"overflow-x: auto; border-radius: 8px; border: 1px solid #dde3e8; margin-bottom: 22px;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(12px,1.8vw,14px); min-width: 320px;\">\n<thead>\n<tr style=\"background: #1a3549;\">\n<th style=\"padding: 10px 13px; text-align: left; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase; width: 38%;\">Parameter<\/th>\n<th style=\"padding: 10px 13px; text-align: left; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">Value \/ Details<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: bold; color: #1a3549; border-bottom: 1px solid #dde3e8; word-break: break-word;\">311 Frame \u2014 Rated Torque<\/td>\n<td style=\"padding: 9px 13px; color: #1a3549; font-weight: bold; border-bottom: 1px solid #dde3e8;\">35,000 Nm<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Rated Power (311)<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">180 kW<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: bold; color: #1a3549; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Full Series Torque Range<\/td>\n<td style=\"padding: 9px 13px; color: #1a3549; font-weight: bold; border-bottom: 1px solid #dde3e8;\">1,000 \u2013 1,100,000 Nm (sizes 300\u2013321)<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Max Mechanical Power<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Up to 450 kW<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: bold; color: #1a3549; border-bottom: 1px solid #dde3e8; word-break: break-word;\">311 Ratio \u2014 Inline (L)<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">4 : 1 \u2013 2,200 : 1<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: bold; color: #1a3549; border-bottom: 1px solid #dde3e8; word-break: break-word;\">311 Ratio \u2014 Right Angle (R)<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">18 : 1 \u2013 800 : 1<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Worm Combined Ratio<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">400 : 1 \u2013 9,000 : 1<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Max Input Speed (311)<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">2,000 RPM<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Gear Unit Versions<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Inline coaxial (L series) \u00a0\u00b7\u00a0 Right angle spiral bevel (R series)<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Output Mounting<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Base mount &amp; flange mount<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Output Shaft Options<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Keyed solid \u00b7 Spline \u00b7 Spline hollow \u00b7 Hollow with shrink disc<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Input Configurations<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Flanged axial piston hydraulic motor \u00b7 Hydraulic track motor \u00b7 IEC motor adaptor \u00b7 NEMA motor adaptor \u00b7 Solid input shaft<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Brake Options<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">Hydraulic parking brake (on request) \u00b7 DC electric brake \u00b7 AC electric brake<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Equivalent Series<\/td>\n<td style=\"padding: 9px 13px; color: #333; border-bottom: 1px solid #dde3e8;\">311L1 \u00b7 311L2 \u00b7 311L3 \u00b7 311L4 \u00b7 311R2 \u00b7 311R3 \u00b7 311R4<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 13px; font-weight: 600; color: #444;\">Condition &amp; MOQ<\/td>\n<td style=\"padding: 9px 13px; color: #333;\">New \u00b7 No minimum order quantity<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- Full range torque table --><\/p>\n<p style=\"font-size: clamp(11px,1.8vw,12px); font-weight: bold; color: #1a3549; text-transform: uppercase; letter-spacing: 0.07em; margin: 0 0 9px;\">Full 300-Series Range \u2014 Torque &amp; Ratio Reference<\/p>\n<div style=\"overflow-x: auto; border-radius: 8px; border: 1px solid #dde3e8;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(11px,1.7vw,13px); min-width: 560px;\">\n<thead>\n<tr style=\"background: #1a3549;\">\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Model<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Rated Torque (Nm)<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Rated Power (kW)<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Max Input RPM<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Ratio (Inline)<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase; border-right: 1px solid rgba(255,255,255,0.1);\">Ratio (R. Angle)<\/th>\n<th style=\"padding: 9px 11px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.05em; text-transform: uppercase;\">Design<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">300<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">20<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.3\u20132,700<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">7\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">301<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,750<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">30<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.3\u20132,700<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">7\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">303<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">40<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.6\u20132,900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">9\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">305<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">5,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">60<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.6\u20132,900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">9\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">306<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">8,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">75<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.7\u20132,900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">9\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">307<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">12,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">100<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.4\u20132,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">13\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">A<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">309<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">18,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">130<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.4\u20132,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">13\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">310<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">25,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">150<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">3.8\u20132,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">40\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<p><!-- 311 highlighted --><\/p>\n<tr style=\"background: #edf3f8;\">\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; font-weight: 900; color: #1a3549; font-size: clamp(12px,1.9vw,14px);\">311 \u2726<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: 800;\">35,000<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: 800;\">180<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: 800;\">2,000<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: 800;\">4\u20132,200<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: 800;\">18\u2013800<\/td>\n<td style=\"padding: 8px 9px; text-align: center; border-bottom: 1px solid #c8d8e8; color: #1a3549; font-weight: 800;\">B<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">313<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">50,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">200<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">2,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20132,200<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">18\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">315<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">80,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">250<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20132,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">70\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">316<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">105,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">270<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20132,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">50\u2013600<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">317<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">150,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">300<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20131,900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">70\u2013900<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">318<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">200,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">340<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">1,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20131,100<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">200\u2013700<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">319<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">300,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">380<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">4\u20131,400<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; border-right: 1px solid #dde3e8; color: #333;\">300\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-bottom: 1px solid #dde3e8; color: #555;\">B<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; font-weight: 600; color: #444;\">321<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: bold;\">450,000<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; color: #1a3549; font-weight: bold;\">450<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; color: #333;\">500<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; color: #333;\">4\u20131,100<\/td>\n<td style=\"padding: 7px 9px; text-align: center; border-right: 1px solid #dde3e8; color: #333;\">300\u2013800<\/td>\n<td style=\"padding: 7px 9px; text-align: center; color: #555;\">B<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: clamp(11px,1.7vw,12px); color: #888; margin: 8px 0 0;\">\u2726 Primary product on this page. Design A = single housing; Design B = dual housing. Suffix L = inline; R = right angle.<\/p>\n<\/div>\n<p><!-- \u2550\u2550 03 FEATURES \u2014 STEP ROW LAYOUT \u2550\u2550 --><\/p>\n<div style=\"background: #fff; border-left: 5px solid #1a3549; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 03<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 20px; word-break: break-word;\">Key Features of the 311 Series Planetary Gearbox<\/h2>\n<div style=\"display: flex; flex-direction: column; gap: 0;\">\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; border-bottom: 1px solid #f0f3f5; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">01<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">Two Output Configurations in One Series<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">The 311 series covers both inline (311L) and right angle (311R) outputs within the same frame size \u2014 using the same housing, planet carrier, and ring gear. This reduces the number of unique parts needed in a mixed fleet and simplifies spares inventory.<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; border-bottom: 1px solid #f0f3f5; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">02<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">Ratio Range from 4:1 to 9,000:1<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Inline variants cover 4:1 to 2,200:1. Right angle variants cover 18:1 to 800:1. Combined with a worm stage, the ratio extends to 9,000:1 \u2014 all within the same mounting envelope as the original Bonfiglioli 311 series.<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; border-bottom: 1px solid #f0f3f5; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">03<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">Five Input Interfaces \u2014 Hydraulic, Electric, Solid Shaft<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Flanged axial piston hydraulic motors, hydraulic track motors, IEC-frame electric motors, NEMA-frame electric motors, and solid input shaft \u2014 covering both mobile hydraulic and fixed industrial electric drive systems without custom adaptor engineering.<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; border-bottom: 1px solid #f0f3f5; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">04<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">Fail-Safe Hydraulic Parking Brake Available<\/div>\n<p style=\"font-size: clamp(12px,1.8vw+12px,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Spring-applied, hydraulically released parking brake available on request. Engages automatically on power loss \u2014 required for crane hoisting, winch holding, and mobile equipment parking on grade. DC and AC electric brake options also available.<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; border-bottom: 1px solid #f0f3f5; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">05<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">4 Output Shaft Options \u2014 No Custom Adaptor Work<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Keyed solid, splined, splined hollow, and hollow with shrink disc. Matching the original Bonfiglioli 311 output shaft type eliminates post-installation adaptation work \u2014 the primary source of additional cost on replacement projects.<\/p>\n<\/div>\n<\/div>\n<div style=\"display: flex; gap: 16px; align-items: flex-start; padding: clamp(14px,3%,18px) 0; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"flex-shrink: 0; width: 48px; height: 48px; background: #1a3549; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 18px; font-weight: 900;\">06<\/div>\n<div style=\"flex: 1; min-width: 0;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 5px;\">Customised Configurations from Standard Components<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Non-standard input\/output combinations, special shaft dimensions, and OEM-specific configurations are built from standard components \u2014 keeping lead times within the same window as standard orders and avoiding non-recurring tooling cost.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550 04 BRAND EQUIVALENTS \u2550\u2550 --><\/p>\n<div style=\"background: #f4f7f9; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 04<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 13px; word-break: break-word;\">Brand Equivalent Reference Table<\/h2>\n<p style=\"font-size: clamp(13px,2vw,15px); color: #333; line-height: 1.75; margin: 0 0 16px; word-break: break-word; overflow-wrap: break-word;\">The 311 series is fully interchangeable with Bonfiglioli Trasmital and HZPT EP311 designations below. All installation dimensions \u2014 bolt pattern, shaft diameter, housing footprint, and port locations \u2014 are matched for direct substitution.<\/p>\n<div style=\"overflow-x: auto; border-radius: 8px; border: 1px solid #dde3e8; margin-bottom: 14px; -webkit-overflow-scrolling: touch;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(12px,1.8vw,14px); min-width: 600px;\">\n<thead>\n<tr style=\"background: #1a3549;\">\n<th style=\"padding: 10px 13px; text-align: left; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase; width: 22%;\">Brand<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">L1<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">L2<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">L3<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">L4<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">R2<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">R3<\/th>\n<th style=\"padding: 10px 13px; text-align: center; color: #fff; font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.06em; text-transform: uppercase;\">R4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px 13px; font-weight: bold; color: #1a3549; border-bottom: 1px solid #dde3e8; word-break: break-word;\">Bonfiglioli Trasmital<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311L1<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311L2<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311L3<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311L4<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311R2<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311R3<\/td>\n<td style=\"padding: 10px 13px; text-align: center; border-bottom: 1px solid #dde3e8; color: #333; font-weight: 600;\">311R4<\/td>\n<\/tr>\n<tr style=\"background: #f4f7f9;\">\n<td style=\"padding: 10px 13px; font-weight: bold; color: #1a3549; word-break: break-word;\">Our EP311 Series<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311L1<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311L2<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311L3<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311L4<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311R2<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311R3<\/td>\n<td style=\"padding: 10px 13px; text-align: center; color: #1a3549; font-weight: bold;\">EP311R4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- Additional compatible brands --><\/p>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.7; margin: 0 0 10px; word-break: break-word; overflow-wrap: break-word;\">Beyond Bonfiglioli 311 series, all installation dimensions of our planetary, wheel drive, winch drive, and track drive products are fully interchangeable with the following brands:<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px;\"><span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Brevini Riduttori<\/span><br \/>\n<span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Bosch Rexroth<\/span><br \/>\n<span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Comer Industries<\/span><br \/>\n<span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Reggiana Riduttori<\/span><br \/>\n<span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Rossi<\/span><br \/>\n<span style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 6px; padding: 5px 12px; font-size: clamp(11px,1.8vw,13px); font-weight: 600; color: #1a3549;\">Zollern<\/span><\/div>\n<p style=\"font-size: clamp(11px,1.7vw,12px); color: #888; font-style: italic; line-height: 1.7; margin: 0; word-break: break-word; overflow-wrap: break-word;\">We do not sell products from these brands; we are only using these brand names for convenience in product selection and it does not involve any infringement.<\/p>\n<\/div>\n<p><!-- \u2550\u2550 05 APPLICATIONS \u2550\u2550 --><\/p>\n<div style=\"background: #fff; border-left: 5px solid #e4cd97; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 05<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 13px; word-break: break-word;\">Application Scenarios<\/h2>\n<p style=\"font-size: clamp(13px,2vw,15px); color: #333; line-height: 1.75; margin: 0 0 18px; word-break: break-word; overflow-wrap: break-word;\">The <strong>311 series planetary gearbox<\/strong> at 35,000 Nm rated torque covers the mid-heavy class of crane, winch, and mobile equipment drives \u2014 the most commonly replaced frame size in the 300 series range.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #f4f7f9; border-radius: 9px; padding: 3%; border-bottom: 3px solid #1a3549; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 7px;\">\ud83c\udfd7 Crane &amp; Hoist Drives<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.62; margin: 0;\">Tower crane hoisting winches, derrick boom luffing drives, and mobile crane slewing drives. The hydraulic parking brake option satisfies FEM M5+ crane duty classifications for powered load holding at rest.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #f4f7f9; border-radius: 9px; padding: 3%; border-bottom: 3px solid #1a3549; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 7px;\">\u2699\ufe0f Winch Drive Applications<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.62; margin: 0;\">Interchangeable with Brevini BW hydraulic winch series. Used in anchor windlass, mooring winch, deck crane winch, and cable laying equipment where a compact, high-torque winch drive with fail-safe braking is specified.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #f4f7f9; border-radius: 9px; padding: 3%; border-bottom: 3px solid #1a3549; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 7px;\">\ud83d\ude9c Wheel Drive &amp; Track Drive<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.62; margin: 0;\">Replaces Bonfiglioli wheel drive and track drive equivalents. Deployed on dump trucks, site dumpers, concrete mixer trucks, and tracked paving equipment. Hydraulic axial piston motor input is standard for mobile equipment.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #f4f7f9; border-radius: 9px; padding: 3%; border-bottom: 3px solid #1a3549; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 7px;\">\u26cf Mining Equipment<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.62; margin: 0;\">Rope drum drives, conveyor drives, and longwall face haulage drives. The 311 frame at 35,000 Nm covers the majority of mid-class mining winch and chain conveyor drive requirements.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #f4f7f9; border-radius: 9px; padding: 3%; border-bottom: 3px solid #1a3549; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549; margin-bottom: 7px;\">\ud83c\udf0a Marine &amp; Offshore<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.62; margin: 0;\">Deck machinery gear drives where the hydraulic motor input configuration is standard. The <a href=\"https:\/\/planetarygeardrive.top\/ml\/right-angle-planetary-gearbox\/\">right angle<\/a> (311R) variant positions the motor parallel to the deck structure while delivering output torque perpendicular \u2014 reducing deck protrusion height on compact vessels.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"attachment_1135\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1135\" class=\"wp-image-1135 size-large\" src=\"https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/03\/Gemini_Generated_Image_w1f7new1f7new1f7-1024x559.webp\" alt=\"311 series planetary gearbox Application Scenarios\" width=\"1024\" height=\"559\" title=\"\" srcset=\"https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/03\/Gemini_Generated_Image_w1f7new1f7new1f7-980x535.webp 980w, https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/03\/Gemini_Generated_Image_w1f7new1f7new1f7-480x262.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><p id=\"caption-attachment-1135\" class=\"wp-caption-text\">311 series planetary gearbox Application Scenarios<\/p><\/div>\n<p><!-- \u2550\u2550 06 FAQ \u2550\u2550 --><\/p>\n<div style=\"background: #f4f7f9; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 06<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 18px; word-break: break-word;\">Frequently Asked Questions<\/h2>\n<div style=\"display: flex; flex-direction: column; gap: 8px;\">\n<details style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 8px; overflow: hidden; word-break: break-word; overflow-wrap: break-word;\">\n<summary style=\"padding: clamp(11px,2%,15px) clamp(13px,3%,18px); font-size: clamp(13px,2vw,14px); font-weight: bold; color: #1a3549; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-left: 3px solid #1a3549;\">Does the 311 series planetary gearbox directly replace Bonfiglioli 311L1, 311L2, 311L3, and 311L4?<br \/>\n<span style=\"font-size: 18px; color: #e4cd97; flex-shrink: 0;\">\uff0b<\/span><\/summary>\n<div style=\"padding: clamp(11px,2%,14px) clamp(13px,3%,18px); font-size: clamp(12px,1.8vw,13px); color: #444; line-height: 1.7; border-top: 1px solid #f0f3f5; word-break: break-word; overflow-wrap: break-word;\">Yes \u2014 our EP311L1, EP311L2, EP311L3, and EP311L4 are fully dimensionally interchangeable with Bonfiglioli Trasmital 311L1 through 311L4. Same for the right angle variants 311R2, 311R3, and 311R4. Send your existing unit’s nameplate data for confirmation within 4 hours.<\/div>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 8px; overflow: hidden; word-break: break-word; overflow-wrap: break-word;\">\n<summary style=\"padding: clamp(11px,2%,15px) clamp(13px,3%,18px); font-size: clamp(13px,2vw,14px); font-weight: bold; color: #1a3549; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-left: 3px solid #1a3549;\">What is the difference between 311L and 311R variants in the 311 series?<br \/>\n<span style=\"font-size: 18px; color: #e4cd97; flex-shrink: 0;\">\uff0b<\/span><\/summary>\n<div style=\"padding: clamp(11px,2%,14px) clamp(13px,3%,18px); font-size: clamp(12px,1.8vw,13px); color: #444; line-height: 1.7; border-top: 1px solid #f0f3f5; word-break: break-word; overflow-wrap: break-word;\">L = inline coaxial output (input and output on the same axis). R = right angle output via spiral bevel stage (output at 90\u00b0 to input). The L variants cover ratios 4:1\u20132,200:1; the R variants cover 18:1\u2013800:1. Suffix number (L1\u2013L4, R2\u2013R4) indicates reduction stage count within that housing.<\/div>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 8px; overflow: hidden; word-break: break-word; overflow-wrap: break-word;\">\n<summary style=\"padding: clamp(11px,2%,15px) clamp(13px,3%,18px); font-size: clamp(13px,2vw,14px); font-weight: bold; color: #1a3549; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-left: 3px solid #1a3549;\">Can the 311 series replace Brevini BW series hydraulic winch gearboxes?<br \/>\n<span style=\"font-size: 18px; color: #e4cd97; flex-shrink: 0;\">\uff0b<\/span><\/summary>\n<div style=\"padding: clamp(11px,2%,14px) clamp(13px,3%,18px); font-size: clamp(12px,1.8vw,13px); color: #444; line-height: 1.7; border-top: 1px solid #f0f3f5; word-break: break-word; overflow-wrap: break-word;\">Yes \u2014 the 311 series is dimensionally interchangeable with Brevini BW hydraulic winch series, Brevini rotary gearboxes, Bonfiglioli wheel drives, and track drives. All mounting dimensions match. Confirm by sending your Brevini unit’s part number or nameplate data.<\/div>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 8px; overflow: hidden; word-break: break-word; overflow-wrap: break-word;\">\n<summary style=\"padding: clamp(11px,2%,15px) clamp(13px,3%,18px); font-size: clamp(13px,2vw,14px); font-weight: bold; color: #1a3549; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-left: 3px solid #1a3549;\">Can the 311 series planetary gearbox be customised with a non-standard ratio?<br \/>\n<span style=\"font-size: 18px; color: #e4cd97; flex-shrink: 0;\">\uff0b<\/span><\/summary>\n<div style=\"padding: clamp(11px,2%,14px) clamp(13px,3%,18px); font-size: clamp(12px,1.8vw,13px); color: #444; line-height: 1.7; border-top: 1px solid #f0f3f5; word-break: break-word; overflow-wrap: break-word;\">Yes. Non-standard ratios within the production range and customised input\/output configurations are available, built from standard components. This keeps lead times predictable without non-recurring tooling cost. Specify your required output RPM and input motor speed for a ratio calculation.<\/div>\n<\/details>\n<details style=\"background: #fff; border: 1px solid #dde3e8; border-radius: 8px; overflow: hidden; word-break: break-word; overflow-wrap: break-word;\">\n<summary style=\"padding: clamp(11px,2%,15px) clamp(13px,3%,18px); font-size: clamp(13px,2vw,14px); font-weight: bold; color: #1a3549; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; border-left: 3px solid #1a3549;\">What shipping options and lead times are available for 311 series orders to Canada, Australia, and Europe?<br \/>\n<span style=\"font-size: 18px; color: #e4cd97; flex-shrink: 0;\">\uff0b<\/span><\/summary>\n<div style=\"padding: clamp(11px,2%,14px) clamp(13px,3%,18px); font-size: clamp(12px,1.8vw,13px); color: #444; line-height: 1.7; border-top: 1px solid #f0f3f5; word-break: break-word; overflow-wrap: break-word;\">Standard in-stock units: 4\u20137 business days processing. Custom configurations: 10\u201335 days. Sea freight: 18\u201335 days. Air freight: 5\u20138 days. DHL\/FedEx express: 3\u20135 days. Trade terms: EXW, FOB, CFR, CIF from Jiangmen, China. Full export documentation with every order.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550 07 REVIEWS \u2550\u2550 --><\/p>\n<div style=\"background: #fff; border-left: 5px solid #1a3549; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 07<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 18px; word-break: break-word;\">Verified Customer Reviews<\/h2>\n<div style=\"background: #f4f7f9; border-radius: 9px; padding: 3%; margin-bottom: 12px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word; border-right: 3px solid #1a3549;\">\n<div style=\"color: #e4cd97; font-size: 14px; letter-spacing: 2px; margin-bottom: 9px;\">\u2605\u2605\u2605\u2605\u2605<\/div>\n<p style=\"font-size: clamp(13px,2vw,14px); color: #333; line-height: 1.72; font-style: italic; margin: 0 0 12px; word-break: break-word; overflow-wrap: break-word;\">“Replacing a 311L3 on a tower crane winch \u2014 I sent the nameplate data on Monday morning. By Monday afternoon I had a dimensional drawing confirming the fit. Unit arrived in 12 days by air freight. Bolted directly on with no shimming or spacers. Crane inspector had the documentation he needed without us chasing anything. That alone saved half a day.”<\/p>\n<div style=\"font-size: clamp(11px,1.8vw,13px); font-weight: bold; color: #1a3549; word-break: break-word;\">K. Lindqvist \ud83c\uddf8\ud83c\uddea \u00a0\u00b7\u00a0 <span style=\"font-weight: 400; color: #777;\">Crane Service Engineer \u2014 Stockholm, Sweden<\/span><\/div>\n<div style=\"font-size: 11px; color: #2e7d4f; font-weight: bold; margin-top: 6px;\">\u2713 Verified Purchase<\/div>\n<\/div>\n<div style=\"background: #f4f7f9; border-radius: 9px; padding: 3%; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word; border-right: 3px solid #1a3549;\">\n<div style=\"color: #e4cd97; font-size: 14px; letter-spacing: 2px; margin-bottom: 9px;\">\u2605\u2605\u2605\u2605\u2605<\/div>\n<p style=\"font-size: clamp(13px,2vw,14px); color: #333; line-height: 1.72; font-style: italic; margin: 0 0 12px; word-break: break-word; overflow-wrap: break-word;\">“My Bonfiglioli 311R3 decided to retire unannounced in the middle of a job site \u2014 as one does. I ordered the EP311R3, half-expecting to spend the next week on an international supply chain adventure involving at least three time zones and a forms-in-duplicate situation. Instead: order placed Tuesday, shipped Thursday, on site Monday. No drama. Machine running. I’m filing a complaint about the lack of story material.”<\/p>\n<div style=\"font-size: clamp(11px,1.8vw,13px); font-weight: bold; color: #1a3549; word-break: break-word;\">C. MacAllister \ud83c\udde8\ud83c\udde6 \u00a0\u00b7\u00a0 <span style=\"font-weight: 400; color: #777;\">Equipment Manager \u00b7 Civil Construction \u2014 Alberta, Canada<\/span><\/div>\n<div style=\"font-size: 11px; color: #2e7d4f; font-weight: bold; margin-top: 6px;\">\u2713 Verified Purchase<\/div>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550 08 WHY CHOOSE US \/ FACTORY \u2550\u2550 --><\/p>\n<div style=\"background: #f4f7f9; padding: clamp(20px,4%,32px); margin-bottom: 2px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.14em; text-transform: uppercase; color: #e4cd97; margin: 0 0 8px;\">Section 08<\/p>\n<h2 style=\"font-size: clamp(16px,2.5vw,20px); font-weight: 800; color: #1a3549; margin: 0 0 16px; word-break: break-word;\">Why Source the 311 Series from Our Factory<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px;\">\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 16px; font-weight: 900;\">35+<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\">Years of Gearbox Manufacturing<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Our factory has manufactured planetary gearboxes for 35+ years. The production line covers CNC precision machining of housings, DIN\/AGMA gear hobbing, case hardening and heat treatment, and full assembly under controlled conditions.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 16px; font-weight: 900;\">100%<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\">Load-Tested Before Dispatch<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">No-load run-in and full rated-torque bench test on every unit \u2014 not spot-checked, not sampled. Signed test report ships with every order. Units that don’t pass the test don’t leave the factory.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 11px; font-weight: 900;\">ISO<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\"><a href=\"https:\/\/www.iso.org\/iso-9001-quality-management.html\" target=\"_blank\" rel=\"noopener\">ISO 9001:2015 Certified<\/a> Quality System<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Certified quality management system covering the full production process \u2014 incoming material inspection, machining tolerance control, gear mesh measurement, assembly verification, and outgoing test documentation.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 14px; font-weight: 900;\">10K+<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\">Configurations In-Stock<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Over 10,000 standard specifications maintained in finished or semi-finished stock. Standard replacement orders for common 311 variants (L1\u2013L4, R2\u2013R4) typically process in 4\u20137 business days \u2014 without waiting for a production run.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 14px; font-weight: 900;\">B2B<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\">English-Speaking Technical Support<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">Our export team includes English-speaking engineers who handle product selection, cross-reference to competitor part numbers, torque calculations, custom drawings, and after-sales support. From initial RFQ to post-installation questions \u2014 one point of contact.<\/p>\n<\/div>\n<div style=\"box-sizing: border-box; width: 100%; max-width: 400px; background: #fff; border-radius: 9px; padding: 3%; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; align-items: center; gap: 11px; margin-bottom: 10px;\">\n<div style=\"flex-shrink: 0; width: 40px; height: 40px; background: #1a3549; border-radius: 7px; display: flex; align-items: center; justify-content: center; color: #e4cd97; font-size: 13px; font-weight: 900;\">OEM<\/div>\n<div style=\"font-size: clamp(13px,2vw,14px); font-weight: 800; color: #1a3549;\">Private Label &amp; Custom OEM Available<\/div>\n<\/div>\n<p style=\"font-size: clamp(12px,1.8vw,13px); color: #555; line-height: 1.65; margin: 0; word-break: break-word;\">OEM private labelling, custom nameplate specifications, and drawing-based custom configurations are available for equipment manufacturers building their own branded product lines. Minimum quantities and lead times confirmed on enquiry.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550 09 CTA \u2550\u2550 --><\/p>\n<div style=\"background: linear-gradient(135deg,#1a3549 0%,#245273 100%); border-radius: 12px; padding: clamp(24px,5%,40px); margin-bottom: 16px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start;\">\n<p><!-- Left: text + badges --><\/p>\n<div style=\"flex: 1; min-width: 240px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"display: inline-block; background: rgba(228,205,151,0.2); border: 1px solid rgba(228,205,151,0.4); border-radius: 5px; padding: 3px 10px; margin-bottom: 12px;\"><span style=\"font-size: clamp(10px,1.5vw,11px); font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; color: #e4cd97;\">Get a Quote<\/span><\/div>\n<h2 style=\"font-size: clamp(18px,3.5vw,26px); font-weight: 900; color: #fff; margin: 0 0 12px; line-height: 1.18; word-break: break-word;\">Order 311 Series Planetary Gearbox \u2014 Response in 24 Hours<\/h2>\n<p style=\"font-size: clamp(12px,1.8vw,14px); color: rgba(255,255,255,0.72); line-height: 1.75; margin: 0 0 18px; word-break: break-word; overflow-wrap: break-word;\">Send your existing Bonfiglioli 311 variant (311L1\u2013L4 or 311R2\u2013R4), quantity, and shipping destination. Alternatively, provide your torque, ratio, and motor interface requirements. We’ll confirm price, stock status, and lead time within <a href=\"\/ml\/contact-us\/\"><strong style=\"color: #e4cd97;\">24 business hours<\/strong>.<\/a><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 7px;\"><span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(10px,1.6vw,12px); font-weight: bold; padding: 4px 12px; border-radius: 18px; border: 1px solid rgba(228,205,151,0.3);\">\u2713 311L1 \u00b7 L2 \u00b7 L3 \u00b7 L4 \u00b7 R2 \u00b7 R3 \u00b7 R4<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(10px,1.6vw,12px); font-weight: bold; padding: 4px 12px; border-radius: 18px; border: 1px solid rgba(228,205,151,0.3);\">\u2713 Brevini BW \/ Bonfiglioli EM ED ET EL<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(10px,1.6vw,12px); font-weight: bold; padding: 4px 12px; border-radius: 18px; border: 1px solid rgba(228,205,151,0.3);\">\u2713 MOQ 1 \u00b7 100% Load-Tested<\/span><br \/>\n<span style=\"background: rgba(255,255,255,0.1); color: #e4cd97; font-size: clamp(10px,1.6vw,12px); font-weight: bold; padding: 4px 12px; border-radius: 18px; border: 1px solid rgba(228,205,151,0.3);\">\u2713 Sea \/ Air \/ DHL \u00b7 EXW FOB CIF<\/span><\/div>\n<\/div>\n<p><!-- Right: stat blocks --><\/p>\n<div style=\"display: flex; flex-direction: column; gap: 10px; min-width: 160px; box-sizing: border-box;\">\n<div style=\"background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 9px; padding: 16px; text-align: center; box-sizing: border-box;\">\n<div style=\"font-size: clamp(22px,4vw,28px); font-weight: 900; color: #e4cd97; line-height: 1;\">24h<\/div>\n<div style=\"font-size: clamp(10px,1.5vw,11px); color: rgba(255,255,255,0.5); margin-top: 4px; letter-spacing: 0.05em;\">Quote Response<\/div>\n<\/div>\n<div style=\"background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 9px; padding: 16px; text-align: center; box-sizing: border-box;\">\n<div style=\"font-size: clamp(22px,4vw,28px); font-weight: 900; color: #e4cd97; line-height: 1;\">35+<\/div>\n<div style=\"font-size: clamp(10px,1.5vw,11px); color: rgba(255,255,255,0.5); margin-top: 4px; letter-spacing: 0.05em;\">Years Manufacturing<\/div>\n<\/div>\n<div style=\"background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 9px; padding: 16px; text-align: center; box-sizing: border-box;\">\n<div style=\"font-size: clamp(22px,4vw,28px); font-weight: 900; color: #e4cd97; line-height: 1;\">MOQ 1<\/div>\n<div style=\"font-size: clamp(10px,1.5vw,11px); color: rgba(255,255,255,0.5); margin-top: 4px; letter-spacing: 0.05em;\">Min. Order Qty<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"border-top: 1px solid rgba(255,255,255,0.12); margin-top: 22px; padding-top: 16px;\">\n<p style=\"font-size: clamp(11px,1.7vw,12px); color: rgba(255,255,255,0.45); margin: 0; line-height: 1.65; word-break: break-word; overflow-wrap: break-word;\">\ud83d\udce7 <strong style=\"color: #e4cd97;\">sales@planetarygeardrive.top<\/strong><br \/>\n|\u00a0 ISO 9001:2015 \u00b7 CE \u00b7 RoHS<br \/>\n|\u00a0 Port: Jiangmen, China<br \/>\n|\u00a0 T\/T \u00b7 Western Union \u00b7 Escrow<\/p>\n<\/div>\n<\/div>\n<p><!-- Related searches --><\/p>\n<div style=\"background: #f4f7f9; border: 1px solid #dde3e8; border-radius: 8px; padding: 12px 16px; box-sizing: border-box; word-break: break-word; overflow-wrap: break-word;\">\n<p style=\"font-size: 11px; font-weight: bold; letter-spacing: 0.1em; text-transform: uppercase; color: #999; margin: 0 0 6px;\">Related Searches<\/p>\n<p style=\"font-size: clamp(11px,1.7vw,12px); color: #999; margin: 0; line-height: 1.9;\">311 series planetary gearbox \u00a0\u00b7\u00a0 Bonfiglioli 311L1 311L2 311L3 311L4 replacement \u00a0\u00b7\u00a0 311R2 311R3 311R4 right angle gearbox \u00a0\u00b7\u00a0 EP311 series planetary gearbox \u00a0\u00b7\u00a0 Bonfiglioli EM ED series replacement \u00a0\u00b7\u00a0 Brevini BW winch gearbox replacement \u00a0\u00b7\u00a0 311 series planetary gearbox 35000 Nm supplier<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>311 series planetary gearbox, 35,000 Nm. Direct replacement for Bonfiglioli 311L1\u2013L4 &amp; 311R2\u2013R4. Inline &amp; right angle, ratios up to 9,000:1. MOQ 1, fast 24h quote.<\/p>","protected":false},"featured_media":1134,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2106],"product_tag":[],"class_list":{"0":"post-1132","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-inline-planetary-gearbox","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/product\/1132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/media\/1134"}],"wp:attachment":[{"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/media?parent=1132"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/product_brand?post=1132"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/product_cat?post=1132"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetarygeardrive.top\/ml\/wp-json\/wp\/v2\/product_tag?post=1132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}