Planetary micro-gearbox RP36

coaxialsolid-shaft1 - 5 Nm

Product Overview
RP36 is a 36 mm planetary gearbox / gear motor family designed for integration with 36 mm motor platforms. Standard output bearing configuration supports radial loads up to 100 N and axial loads up to 50 N. Available gear ratio ranges: 1:3.7–1:5.2, 1:14–1:27, 1:51–1:139, 1:189–1:721. Rated continuous torque up to 5.0 N·m; momentary/impact torque up to 12 N·m.

Key Facts for Engineering Buyers

• Product category: Planetary Gear Motors & Gearboxes
• Motor family: Planetary Gear Motor / Gearbox (36 mm class)
• Brand / manufacturer: KWC Motor, Dongguan KWC Machinery Co., Ltd.
• Typical applications: industrial automation, robotic joints, automatic doors, conveyors

Specification Signals

• Diameter: 36 mm
• Shaft: 8 mm standard (7 mm D-cut option)

Customization and Sourcing Notes

• KWC Motor supports OEM/ODM customization: voltage, speed, torque, shaft design (double D, keyway, threaded), cable/connector, encoder and control board integration, gearbox material upgrades, noise/EMC targets.
• Final pricing and lead time provided after confirmation of application, specifications, quantities and any customization.

Core Applications & Solutions

• Industrial Robots & Robotic Arms: Designed for robot joints, AGV wheel hub drives and automated welding equipment. Provides precision under load with ball-bearing output and up to 5.0 N·m continuous torque.
• Automatic Doors & Conveying Systems: Suitable for commercial sliding doors, industrial conveyors and heavy rotating displays. Can withstand momentary start-up/impact torque up to 12 N·m for high-inertia loads.

RP36 Gearbox Technical Specifications (table)
Gear Ratio | Stages | Length L (mm) | Rated Torque | Max Momentary Torque | Efficiency
1/3.7 ~ 1/5.2 | 1 | 26.5 ±0.5 | 0.5 N·m | 1.5 N·m | 90%
1/14 ~ 1/27 | 2 | 32.7 ±0.5 | 2.0 N·m | 6.0 N·m | 81%
1/51 ~ 1/139 | 3 | 39.0 ±0.5 | 4.0 N·m | 10 N·m | 73%
1/189 ~ 1/721 | 4 | 45.0 ±0.5 | 5.0 N·m | 12 N·m | 66%

Mechanical Parameters
Gearbox outer diameter: 36 mm. Shaft diameter: 8 mm (7 mm D-cut option). Output shaft equipped with ball bearings. Max radial load: 100 N. Max axial load: 50 N. Max press-in force: 120 N. Impact (momentary) torque up to 12 N·m. Precision radial backlash controlled within 0.07 mm.

Characteristics / Technical Specifications

• Model / series: RP36
• Diameter: 36 mm
• Shaft: 8 mm diameter (7 mm D-cut option)
• Bearings: standard ball bearings on output shaft
• Max radial load: 100 N
• Max axial load: 50 N
• Max press-in force: 120 N
• Continuous rated torque: up to 5.0 N·m depending on gear ratio
• Max momentary (impact) torque: up to 12 N·m
• Available gear ratio ranges: 1/3.7 ~ 1/5.2, 1/14 ~ 1/27, 1/51 ~ 1/139, 1/189 ~ 1/721
• Length L (mm) by stages: 1-stage 26.5 ±0.5; 2-stage 32.7 ±0.5; 3-stage 39.0 ±0.5; 4-stage 45.0 ±0.5
• Efficiency examples by stages: 1-stage ~90%, 2-stage ~81%, 3-stage ~73%, 4-stage ~66%
• Customization: compatible with 36 mm brushed/brushless motors, shaft options (double D-cut, keyway, threaded), upgraded gear materials for higher impact torque as required