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WPU-SRJ Series – High Torque Type

Open Type Unit (Input Shaft)

The WPU-SRJ Series delivers exceptional torque capacity and precision in a compact, high-rigidity design. Engineered for demanding applications, it combines zero backlash operation with superior stiffness and smooth motion. The integrated cross roller output bearing and output flange ensure stable load support and easy, direct mounting for a wide range of motion control systems.

Features:

  • High torque output for demanding applications
  • Zero backlash
  • Positioning accuracy
  • High torsional stiffness and rigidity
  • Durable cross roller output bearing
  • Output flange for direct load mounting

Downloads

High Torque Type B2 Catalog

Model Selection Flow

* For code details, check Dimensions Table

Ratio Matrix Availability

Reducer Specifications

  1. Reduction ratio is to be calculated by the formula in the previous page, using R value in this table.
  2. The maximum allowable value at the input rotation speed of 2000r/min
  3. The maximum torque when starting and stopping.
  4. The maximum torque when it receives shock.
  5. The maximum average input speed.
  6. The maximum input speed.
  7. The life time at the input rotation speed of 2000 r/min and nominal output torque.

*100 frame option is currently only available for open type

* 100 frame option is available for S: Simple unit type and U: Unit type (Input shaft unit) and (Hollow shaft)

Open Type: Unit (Input Shaft)

WPU-□-□-SRJ

Frame SizeWeight
Kg
Moment of Inertia
x10-4kgm²
350.650.0266
420.910.0666
501.40.155
632.10.382
804.11.28
1006,93.15

[mm]

Frame SizeLALBLCLDLELFLGLHLJLKLLLPLQLR
354436547050.520.515152.58911--
42544564805623171638.51012--
506250759063.5252117.53910.5-16.520
6377609011072.5262620.538.510.5-22.525
801008511514284.5322626.559.512-22.525
10012210014017010038313151314-27.530