Right Angle
Planetary Gearbox
90° output. Up to 500,000 Nm. Direct replacement for Bonfiglioli, Brevini, Bosch Rexroth, and 4 other OEM brands — same mounting dimensions, bolt-on fit, zero modification.
Complete Product Range
What Is a Right Angle Planetary Gearbox?
A right angle planetary gearbox combines a multi-stage planetary gear train with a spiral bevel output stage, redirecting torque at exactly 90° to the input shaft. This makes it the correct choice wherever the motor or power source cannot be aligned on the same axis as the driven component — a constraint that appears across most heavy equipment categories.
The spiral bevel gear set produces progressive tooth contact rather than instantaneous engagement — measurably quieter and less vibration-prone than straight-cut bevel designs at the same output torque. The result: compact footprint, high power density, and long service life under continuous industrial loads.
Planetary + Bevel Architecture
Multi-stage planetary reduction combined with spiral bevel output achieves high ratios and 90° power delivery in a single compact unit.
When to Choose Right Angle vs Inline
Use right angle when output shaft must be perpendicular to the motor. Torque ratings are comparable; the bevel stage adds ~2–3% efficiency trade-off.
Direct OEM Replacement Logic
Our series maintains identical mounting flange, output shaft, and input interface dimensions to major OEM units — enabling bolt-on replacement without chassis modification.
Product Series
Select Your Right Angle Planetary Gearbox
Three series covering every application from light industrial to ultra-heavy mining. All load-tested, all in stock for standard configurations.
Where Right Angle Planetary Gearboxes Are Used
The 90° output configuration is required wherever the motor axis must be perpendicular to the load — a constraint that appears across most heavy-equipment categories.
Construction Equipment
Excavator swing drives · Wheel drives on dumpers · Tower crane winch drums · Concrete mixer drives · Track drives on pavers
Mining & Heavy Industry
Chain conveyor drives · Tunnel boring machines · Crusher feed screws · Drill rig rotation heads · Bucket elevator drives
Agricultural Machinery
Baler & harvesting head drives · PTO-driven implement gearboxes · Feed mixer wagon drives · Hydraulic motor to transverse shaft
Maritime & Offshore
Deck winch drives · Anchor windlass systems · Marine steering gears · Ship crane swing mechanisms
Fixed Industrial
Conveyor corner drives · Mixer head drives · Rotary table drives · Agitator drives in process plants
Renewable Energy
Wind turbine yaw drives · Solar tracker pivot drives · Hydropower gate actuators
Material Handling
Overhead crane travel drives · Port equipment drives · Pallet conveyor turns · Automated sorting systems
Oil & Gas
Pump jack drives · Pipeline pig launcher drives · Rotary drilling auxiliary drives · Valve actuators
Ordering Process
How to Order — 4 Steps from Inquiry to Delivery
No complex procurement process. Tell us what you have, we confirm what you need.
Verified Customer Reviews
What Engineers Say About Our Gearboxes
We replaced a worn Bonfiglioli right angle drive on our aggregate conveyor corner with an EP311R3. Sent the nameplate dimensions — they confirmed the frame and ratio within a few hours. Unit arrived dimensionally identical. Bolted on, filled the oil, ran a 30-minute no-load check, and put it back into service. 2,200 hours later and we haven’t touched it.
We replaced a failed NB300R unit on our concrete mixer drive. The new gearbox bolted straight on — same flange pattern, same shaft diameter, no adaptor work. Machine back running in under 5 hours from arrival. Test report was already in the box. No chasing documents.
We integrated the 307 Series gearbox into our conveyor system upgrade project. Installation was seamless and torque performance exceeded expectations under continuous load. Compared to OEM brands, the cost savings are significant without compromising reliability.
Frequently Asked Questions
Right Angle Planetary Gearbox — Technical FAQ
What is a right angle planetary gearbox and how does it differ from an inline unit?
An inline planetary gearboxdelivers output torque on the same axis as the input — coaxial design. A right angle planetary gearbox adds a spiral bevel stage that redirects output torque at exactly 90°. Use the right angle configuration when your machine layout requires the output shaft to be perpendicular to the motor. Torque ratings are comparable; the bevel stage adds a small efficiency loss (typically 2–3%). Both types use the same multi-stage planetary gear train for the primary reduction.
How do I confirm which series and frame size I need?
The fastest method is to send us your existing unit’s nameplate data: brand, model number, gear ratio, output torque rating, and input motor type. We will confirm the exact equivalent frame size and variant within 4 business hours at no charge. Dimensional drawings are available on request before you commit to order. Alternatively, specify your required output torque, gear ratio, and motor interface directly.
Are these gearboxes truly direct-fit replacements for Bonfiglioli, Brevini, and Bosch Rexroth?
Yes. The EP-300R series is dimensionally equivalent to Bonfiglioli, Brevini Riduttori, Bosch Rexroth, Comer Industries, Reggiana Riduttori, Rossi, and Zollern units. Mounting flange, output shaft, and input interface dimensions are matched to the original specifications. This means bolt-on installation — no shimming, no adaptor fabrication, no chassis modification. Send your existing unit’s nameplate data and we confirm the fit in writing before you order.
What motor input types are compatible?
Five input configurations are available across all series: (1) flanged axial piston hydraulic motors, (2) hydraulic orbit motors, (3) IEC-frame electric motors via adaptor (IEC 80–315), (4) NEMA-frame electric motors, and (5) solid input shaft. Specify your motor type, flange size (SAE A/B/C for hydraulic, IEC frame for electric), and shaft diameter when requesting a quote to ensure the correct input adaptor is supplied.
What are the lead times and can you ship express for urgent replacements?
In-stock standard units: 4–7 business days processing before dispatch. Custom ratio or non-standard configuration: 10–35 days depending on complexity. For urgent replacements, express DHL/FedEx delivery reaches Canada, Australia, and Europe in 3–5 days from dispatch. Air freight is 5–8 days. Sea freight is 18–35 days. We can quote all options and let you choose the balance between speed and freight cost.
Is a parking brake available and can the output shaft options be customized?
Yes to both. Brake options include hydraulically released parking brake (for mobile equipment fail-safe hold) and DC or AC electric brakes for fixed industrial equipment. Output shaft options are solid keyed, splined, splined hollow, and hollow with shrink disc — covering virtually all existing drivetrain interfaces without custom adaptor work. Specify at time of enquiry with brake holding torque and release pressure or voltage requirements.
What documentation comes with each gearbox shipment?
Each shipment includes: signed load test report (no-load run-in + full rated-torque bench test results), material certification for gear steel, dimensional inspection report, commercial invoice, packing list, bill of lading, and certificate of origin. Full export documentation is prepared as standard — no additional charges for documentation.
Get In Touch
Ready to Source Your
Right Angle Planetary Gearbox?
Send your nameplate data or specification requirements. We return a confirmed frame size, price, and lead time within 24 business hours.
MOQ 1 unit — no minimum order penalty
Confirmed dimensional fit before you commit
Sea / Air / DHL — ships to 50+ countries
EXW, FOB, CFR, CIF — Jiangmen Port, China
T/T · Western Union · Escrow accepted
ISO 9001:2015 · CE · RoHS certified