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Retaining-Ring Groove

A retaining ring (circlip) sits in a groove and takes axial thrust. Two things can fail: the groove wall can shear/yield (a function of the retained material) or the ring itself can shear. The lower of the two is the allowable thrust. Dims in mm, strengths in MPa.

Type

Shaft diameter (mm)

Groove depth (mm)

Ring thickness (mm)

Retained-part yield Sy (MPa)

Ring shear strength Sus (MPa)

Safety factor

Groove diameter

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Allowable thrust

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Governed by

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First-order estimate — production selection uses the ring maker's rated load tables (Smalley/Rotor Clip) which include corner-radius and dishing effects. A helper, not a substitute for engineering judgment.