Volvo VOL55 Swing Gearbox<\/h2>\n
VOL55 \u00b7 Part Ref: VOE14529547 \u00b7 SM60-5M<\/p>\n
Drop-in replacement excavator swing gearbox<\/strong> for the Volvo EC55 compact excavator (4.9\u20135.1 t operating weight class). All mounting dimensions match the OEM specification \u2014 no modification, no shimming, no adaptor required. 100% load-tested before dispatch, signed test certificate included.<\/p>\n <\/p>\n <\/p>\n The Volvo VOL55 is a 5-tonne class compact excavator produced from 2001 onward across multiple generations (EC55, EC55B, EC55C). The swing gearbox<\/strong> \u2014 also called the swing drive gearbox or swing reducer \u2014 is the planetary reduction unit that converts the high-speed output of the hydraulic swing motor into the low-speed, high-torque rotation that drives the excavator’s upper structure around the slew ring. At 5 tonnes operating weight, the EC55 uses a 3-stage compact planetary swing gearbox of approximately 58\u201362 kg unit weight, paired with a two-speed hydraulic swing motor.<\/p>\n Our swing gearbox excavator<\/strong> replacement is manufactured to the same dimensional specification as the OEM unit, confirmed against the VOE14529547 and SM60-5M reference numbers. It is also directly compatible with Volvo EC55B and EC55C models across all production generations, as well as the Volvo EC60 (same platform gearbox), and the SM60-5M cross-reference covers several Hitachi and CAT compact excavator equivalents in the same weight class.<\/p>\n<\/div>\n The slewing gearbox is mounted on the upper part of the excavator and is responsible for controlling the machine’s rotation. The gearbox operates on the principle of gear transmission, transferring power from the engine to the excavator’s upper structure. In addition, the gearbox includes a hydraulic system to help ensure smooth machine operation.<\/p>\n <\/p>\n Send your machine serial number to confirm the exact variant before ordering. All cross-references below are based on dimensional interchangeability \u2014 confirm output pinion tooth count before installation.<\/p>\n We do not sell Volvo or Komatsu OEM products. Brand names are used for identification and compatibility reference only.<\/p>\n<\/div>\n <\/p>\n Confirm excavator model, serial number prefix, and gear ratio from the existing unit nameplate before ordering.<\/p>\n <\/p>\n Dimensional Interchangeability Confirmed Before Dispatch<\/strong><\/p>\n All bolt patterns, output shaft diameter, housing pilot, and port locations are verified against the VOE14529547 dimensional drawing before shipment. A dimensional confirmation drawing is provided before order commitment.<\/p>\n<\/div>\n<\/div>\n Case-Hardened Alloy Steel Gears \u2014 58\u201362 HRC Surface<\/strong><\/p>\n All planet gears, ring gear, and sun gear use high-strength alloy steel with case hardening to 58\u201362 HRC. Ring gear is induction hardened. Tooth profiles are optimised for maximum root bending strength and minimum sliding contact wear.<\/p>\n<\/div>\n<\/div>\n Individual Load Test Certificate \u2014 Every Unit, Not Batch-Sampled<\/strong><\/p>\n Every gearbox is tested at rated swing torque before shipment. The signed test certificate is included in the shipping documentation. Not batch-sampled \u2014 each unit individually tested and certified.<\/p>\n<\/div>\n<\/div>\n Air Freight Available \u2014 5\u20138 Days to Canada, Australia, Europe<\/strong><\/p>\n For machine-down situations, express air freight is available to all major markets. Standard sea freight for planned maintenance orders. EXW, FOB, CFR, CIF available. Full export documentation included.<\/p>\n<\/div>\n<\/div>\n MOQ 1 Unit \u2014 No Minimum Volume Requirement<\/strong><\/p>\n Single-unit orders accepted without surcharge. OEM and fleet volume orders welcome. Pricing scales with quantity \u2014 request a volume quotation for 5+ units.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n <\/p>\n <\/p>\n “Ordered a VOL55 swing gearbox for our EC55B on a compact pipeline jobsite in Western Australia. Sent the serial number and had a dimensional drawing back within 3 hours. Unit arrived by air in 7 days. Bolted straight on \u2014 matched perfectly. Machine was back in the trench the following morning. Test certificate was in the box, which our site engineer needed for the audit file. Simple, fast, correct.”<\/p>\n “My EC55 started making noises that sounded expensive. I ordered this swing gearbox<\/a> at 9pm on a Tuesday, received the dimensional drawing by Wednesday morning, and by the following week the machine was spinning silently again. My mechanic asked where I sourced it. I said ‘the internet.’ He looked suspicious. The gearbox has now run 800 hours. My mechanic has stopped looking suspicious. Five stars. Would internet again.”<\/p>\n <\/p>\n \n<\/div>\n The hydraulic swing motor pairs with the EC55 swing gearbox via a direct SAE flange mount. If the swing gearbox failed with internal debris, the motor case drain should be flushed before installing the new gearbox \u2014 otherwise debris will contaminate the new unit within 100\u2013200 hours.<\/p>\n Enquire About Swing Motor \u2192<\/a><\/p>\n<\/div>\n<\/div>\n \n<\/div>\n The VOL55 swing gearbox ships without oil. Order the correct gear oil (SAE 80W-90 GL-5) and a swing gearbox seal kit together to ensure the unit is commissioned correctly and the input shaft seal is available if required during installation.<\/p>\n Enquire About Gear Oil & Seal Kit \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n <\/p>\n Order VOL55 Swing Gearbox \u2014 Response in 24 Hours<\/p>\n Send your EC55 serial number (or full model designation) and shipping destination. We confirm the correct variant, supply a dimensional drawing, and return price + lead time within 24 hours<\/strong><\/a>. MOQ 1 unit. Air freight to Canada, Australia, USA, and Europe.<\/p>\n
\nMOQ 1 Unit<\/span>
\nAir Freight 5\u20138 Days<\/span>
\nISO 9001:2015<\/span><\/div>\n<\/div>\n<\/div>\n![\"Swing](\"https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/04\/Swing-Gearbox-Fit-for-Excavator-Volvo-1-1024x1024.webp\" "\\"\\"")
<\/div>\n<\/div>\nProduct Overview \u2014 Volvo EC55 Swing Gearbox<\/h2>\n
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Installation and Working Principle of the Slewing Gearbox<\/h2>\n<\/blockquote>\n
![\"\"](\"https:\/\/planetarygeardrive.top\/wp-content\/uploads\/2026\/04\/Excavator-Swing-Gearbox-Mounting-Location-1024x575.webp\" "\\"\\"")
<\/p>\nCompatible Brands & Models<\/h2>\n
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Technical Specifications<\/h2>\n
Key Advantages \u2014 Why Choose Our Swing Drive Gearbox<\/h2>\n
Frequently Asked Questions<\/h2>\n
Does this fit the Volvo EC55B and EC55C in addition to the original EC55?+<\/span><\/summary>\n
What gear oil should I use and how much does the gearbox hold?+<\/span><\/summary>\n
What is the lead time and minimum order for the swing gearbox excavator unit?+<\/span><\/summary>\n
Verified Customer Reviews<\/h2>\n
Frequently Ordered Together<\/h2>\n
Hydraulic Swing Motor (EC55 Compatible)<\/h2>\n
SAE 80W-90 GL-5 Gear Oil + Seal Kit<\/h2>\n
Ready to Get Your Volvo EC55 Running Again?<\/h2>\n