Minhang · ShanghaiPrecision Planetary Transmission Solutions
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Precision Solutions for Diverse Transmission Needs

Focused on Precision Transmission, We develop high-quality, highly reliable transmission solutions driven by our customers’ needs.

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Precision planetary gearbox cutaway
06 / Robot Joints

Robot Joints

Sizing Notes

What to confirm before ordering

How to read the model code

Example SYPRF 90 L1 7 P1 S1: series / frame size / stage (L1 single, L2 double) / ratio / backlash grade (P1 precision, P2 standard) / output type (S1 smooth shaft, blank = keyed).

Motor information we need

Please provide the motor brand and model, or the connection dimensions directly: shaft diameter and length, pilot diameter, flange size and bolt pattern.

Torque and service life

Rated output torque assumes safety factor S=1 and a theoretical life of 20,000 hours, following ISO DP 6336 for gears and ISO 281 for bearings. Actual required torque must exceed the calculated duty torque.

Installation notes

Confirm motor and reducer are undamaged and dimensionally matched. Ensure output and input shafts are concentric, never strike with a hammer, and tighten fasteners to the specified torque with a torque wrench.

Looking for the right drive solution?

Whether you need a standard product sized or a fully custom drive, our engineering team is here to help.

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