WSHD Hollow Strain Wave Gearbox

MANUFACTURER DOCUMENTATION

Overview

A compact hollow strain-wave series for precision motion. The manufacturer publishes separate continuous, start/stop and momentary torque ratings; these limits should not be interchanged.

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Published series specifications

Series ranges describe the product family. They are not interchangeable operating points.

Frame sizes

14 / 17 / 20 / 25

Ratios

50 / 100

Rated torque

3.5–47 Nm at 2,000 rpm input

Backlash

15 arcsec (0.25 arcmin)

Allowable average input speed

3,500 rpm

Maximum input speed

5,500–8,000 rpm, by size

Model configuration table

8 source-backed configurations. Torque is in Nm, input speed in rpm and backlash in arcmin. The note preserves the rating conditions and precision grade.

Selection checks for WSHD Hollow Strain Wave Gearbox

Use these questions with the manufacturer’s current model sheet and your actual operating conditions.

• Match the 14, 17, 20 or 25 frame and 50 or 100 ratio to the model row; rated torque is specified at 2,000 rpm input.
• Do not substitute start-stop or momentary torque for rated torque. Check average and maximum input speeds for the chosen size.

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FSS20 strain-wave reducer from the Laifual standard cup-type range. Rated torque is specified at 2,000 rpm input. Start-stop, average-load and momentary torque limits are separate values and must not replace the rated torque.

Frame

20

Ratios

50 / 80 / 100 / 120 / 160

Rated torque at 2,000 rpm

25 / 34 / 40 / 40 / 40 Nm, respectively

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Frame

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Ratios

30 / 50 / 80 / 100

Rated torque

4 / 5.4 / 7.8 / 7.8 Nm, respectively

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