Precision Planetary Gearbox — STÖBER PH531SFSS0100MF
Brand: STÖBER (Germany)
Model: PH531SFSS0100MF
Origin: Made in Germany
Product Series: PH531 Coaxial Precision Planetary Gearbox
Key Parameters (from nameplate)
| Item | Value |
|---|---|
| Ratio i | 10.00 |
| Rated Torque TA | 40 Nm |
| Backlash | ≤ 0.081° |
| Motor Flange Adaptation | 110 / 130 / 24 |
| Housing Size | HC 150 |
| Fastening Screw | 6 mm hex socket |
Technical Specifications
| Item | Specification |
|---|---|
| Model | PH531SFSS0100MF |
| Ratio | i = 10 |
| Rated Output Torque | 40 Nm |
| Max. Acceleration Torque | 80 Nm |
| Backlash | ≤ 0.081° (low-backlash precision grade) |
| Transmission Type | Coaxial planetary gearing |
| Housing Material | High-strength cast iron / aluminum composite housing |
| Lubrication | Lifetime sealed lubrication, maintenance-free |
| Rotation Direction | Input and output in the same direction |
| Protection Class | IP64 |
| Motor Compatibility | Servo motors; supports 110–130 flange servo motors |
| Weight | Approx. 4.7 kg |
Product Features
Original German STÖBER PH series — high rigidity, low backlash, and high positioning accuracy, ideal for high-precision servo motion control.
Fully sealed lifetime lubrication — no oil change is required under normal operating conditions, reducing maintenance costs.
Coaxial structure — compact installation saves equipment space.
High resistance to shock loads — suitable for dynamic applications with frequent start/stop cycles.
Strong flange compatibility — adapts to mainstream 110 and 130 frame servo motors.
Typical Applications
Servo positioning mechanisms in automation equipment
Robot 7th axis and truss manipulators
Packaging equipment and machine tool auxiliary axes
Laser equipment and cutting equipment drive systems
Material handling and precision transfer mechanisms
Installation & Usage Notes
Ensure coaxiality between the input shaft and the servo motor; do not force assembly by hammering.
Use 6 mm hex socket screws and tighten them to the nameplate torque of 40 Nm.
Do not exceed the maximum acceleration torque; frequent overload will accelerate gear wear and increase backlash.
Sealed structure — do not open the housing, as doing so will void original factory performance.
Operating temperature: −10 °C to +80 °C.