Incorporating SH gears with high permissible torque, these models offer the full benefit of the speed reducing capability of geared motors, delivering high resolution, high torque and smooth low-speed rotation. With performance like this, the SH Geared type can easily satisfy the requirements of various kinds of low-speed positioning applications.
Smooth Rotation at Low Speeds
Stepping motors at low speed produce a relatively high amount of vibration. Use of a gearhead allows for an increase in the speed of the motor which results in a smoother motion while maintaining the low output speed required by the application.
Six Gear Ratios
SH geared motors are available with six different gear ratios: 3.6:1, 7.2:1, 9:1, 10:1, 18:1, and 36:1. The low ratios of these gearheads can greatly facilitate speed control of the 2-phase stepping motors.
Ideal for High Inertia Drive
The stepping motor itself can drive an inertia of 10 times the rotor inertia. The geared type can reduce the load inertia by the square of the gear ratio. Therefore, the geared type is suitable for driving larger inertial loads.
The PK Series stepping motor with encoder offers high torque and precise feedback capability.
Type |
Frame Size |
without Encoder |
with Encoder |
Connection |
Lead Wires |
Max. Holding Torque |
![]() Spur Gear |
1.10 in. (28 mm) | View | Bipolar (Series), Unipolar | 6 | 2.6 ~ 3.5 lb-in |
|
| 1.65 in. (42 mm) | View | Bipolar (Series), Unipolar | 6 | 1.77 ~ 7 lb-in |
||
| 2.36 in. (60 mm) | View | Bipolar (Series), Unipolar | 6 | 8.8 ~ 35 lb-in |
||
| 3.54 in. (90 mm) | - | Bipolar (Series), Unipolar | 6 | 22 ~ 106 lb-in |
View Products = View all PK/PV Series Stepping Motors