Gear Motor Output Shaft

The output shaft of a gear motor is the final link in the entire reduction system-after the motor's high-speed rotation is reduced through gears, it ultimately outputs high-torque, low-speed power to the load through this shaft. This shaft looks simple, but actually must withstand the amplified torque after reduction while ensuring concentricity and runout at the output end. Once something goes wrong, the entire gear motor vibrates, makes noise, or even suffers a broken shaft. We make Gear motor output shafts to get this final link right, for stable, accurate, and durable power output.

We commonly use alloy steels such as 40Cr and 42CrMo. After quenching and tempering, core hardness is HRC 28–32-tough and torque-resistant. Output journals and mating sections are induction-hardened or nitrided to surface hardness above HRC55 for wear resistance. Shaft straightness within 0.01mm, concentricity within 0.01mm, output end face runout within 0.01mm. Keyways are machined on CNC milling machines to IT7 grade precision. Spline sections, flat sections, and threaded sections can be added as needed to match different output connection methods. Gear motor output shafts are used in gear motors, servo reducers, planetary reducers, and automation equipment drives. Every shaft undergoes full dimensional and hardness inspection before shipping, with critical journals 100% inspected. After years of making Gear motor output shafts, we have found that the key to reduction output shafts lies in torque capacity and concentricity-get these right, and the lifespan and stability of the gear motor improve. Send us your drawings; sample first to verify.

● Gear motors, servo reducers

● Planetary reducers, harmonic reducers

● Automation equipment drives

● Conveying equipment, packaging machinery

Established in 2009, making metal parts in Yuhuan, Taizhou. Workshop with CNC lathes, external cylindrical grinders, centerless grinders, spline machining equipment-shaft parts from blank forging, quenching/tempering, turning, grinding to surface treatment, all in one line. Plant over 5,000 sqm, 60+ employees, 100+ CNC machines. Monthly capacity 10,000–150,000 pieces depending on complexity; rush orders accommodated with overtime. No reliance on subcontractors, delivery and quality self-controlled. Supplied shaft parts to OEMs.

Customization from drawings and samples supported. Shaft diameter, length, shoulder position, keyway parameters, spline parameters, threaded sections all adjustable per drawing, no strict MOQ. Materials: 40Cr, 42CrMo, 45# steel, 20MnCr5, etc. Heat treatment (quenching/tempering, induction hardening, carburizing, nitriding) determined per operating condition. Custom samples typically 15–20 working days, shorter for simple processes. Small sample fee charged, fully deductible against bulk orders. Sample first to confirm dimensions and performance, then batch.

Operating under IATF 16949. Materials with material certificates and heat treatment reports. Journals: hardness testing and roundness testing; straightness with dial indicator; surface roughness per drawing requirements. Critical journals 100% inspected; sampled pieces go to CMM for full dimensional verification. Issues traceable to specific process and batch. Third-party inspection per customer specification accepted, reports accompany goods.

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