the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts (circlips for retaining hubs on shafts F16B21/18)

Couplings for rigidly connecting two coaxial shafts or other movable machine elements > Quick-acting couplings in which the parts are connected by simply bringing them together axially > having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling > the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts

Couplings for rigidly connecting two coaxial shafts or other movable machine elements (attachment of wheels to axles for railway carriages B60B; for attachment of cranks to their shafts F16C3/10) > Quick-acting couplings in which the parts are connected by simply bringing them together axially > having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling > the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts (circlips for retaining hubs on shafts F16B21/18)