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Chapter 6
●Ratcheting torque
When excess impact torque is applied during operation, the engagement of the teeth between the
circular saline and the flexspline may be put momentarily out of alignment instead of damaging the
flexspline.This phenomenon is called ratcheting, and the torque is called ratcheting torque (see values
on the corresponding page of each series).0peraling the drive without fixing ratcheting will result in
earlier abrasion of the teeth and shorter lifespan of the wave generator bearing due to the effect of the
grinding powder generated by ratcheting.
Reduction ratio
30
50
100
●Buckling torque
When excess torque is applied lo the flexspline (output) with the wave generator fixed, the flexspline
causes elastic deformation，buckles on the body before long and will be destroyed. The torque at
the time is called buckling torque.
All ｒeduction ｒａｔｉｏ
Chapter 6 Starting torque and Overdrive starting torque
Ratcheting torque and
Buckling torque
Ratcheting torque
Buckling torque
-
Unit:Nｍ
0.88
0.83
0.74
Unit:Nｍ
3.7
-
12
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