P Series

Our newly developed STOBER planetary gear units are especially impressive thanks to their outstanding precision and performance, as well as very low backlash, high torsional stiffness and exceptionally constant speed.
Availability: P2 − P4: 10/19 │ P5 − P7: 03/20 │ P8 − P9: 05/20

Precision for typical servo applications. High torsional stiffness. Helical gearing. Backlash to < 1 arcmin. Rugged solid shaft. Compact motor adapter. Fast and easy motor attachment. Attachable to all common synchronous servo motors.

Type

Ratio

Max. perm. acceleration torque [Nm]

Max. perm. input speed in cyclic operation [rpm]

Backlash [arcmin]

Torsional stiffness [Nm/arcmin]

P231 4 – 10 21 – 25 8000 6 1.6 – 1.9
P232 16 – 100 21 – 25 8000 8 1.6 – 1.8
P331 3 – 10 50 – 80 7000 – 8000 2 – 4 4.3 – 5.4
P332 12 – 100 50 – 75 8000 3 – 5 4.3 – 5.2
P431 3 – 10 100 – 145 6000 – 8000 2 – 4 9.1 – 13
P432 12 – 100 100 – 139 7000 – 8000 3 – 5 9 – 12
P531 3 – 10 200 – 385 5000 – 7000 1 – 3 24 – 34
P532 12 – 100 200 – 364 6000 – 8000 2 – 4 25 – 33
P731 3 – 10 500 – 840 4000 – 6000 1 – 3 54 – 67
P732 12 – 100 500 – 805 5000 – 7000 2 – 4 54 – 65
P831 3 – 10 1200 – 2000 3000 – 4500 1 – 3 147 – 181
P832 12 – 100 1200 – 2000 4500 – 6000 2 – 4 148 – 177
P931 4 – 10 2300 – 3450 3000 – 4000 3 323 – 407
P932 16 – 100 2200 – 3450 3500 – 4500 4 321 – 406