Why locking washer and circlips lack of elasticity?

Improper use of the customer: Circlipscannot deform to its original shape during installation, shrinking and expansion exceeds the standard.

The gap between the assembly tools is too large，will make the toolsimbalance in forcethat cannot deform to its original shape.

Mistake of eccentric design and mold of circlips.

Heat treatment caused force unbalanced to make goods distortion.

Elastic overload also feel the elasticity is not good.