Hardened insert for backstopping clutch

Details Hardened insert for backstopping clutch Hardened insert for backstopping clutch

1990-04-30

1992-04-14

Dean, R.

Metal treatment

Compositions

Heat treating

188251A, 428660, 428932, C21D 1000, F16D 6902

Patent

active

051044617

ABSTRACT:
An improved hardened insert adapted for use in bi-directional backstopping clutches is disclosed. The inserts are formed from a base material of high speed alloy tool steel, which is relatively inexpensive and easy to machine. The base material is formed into the desired shape for the insert, then hardened and tempered by conventional processes to achieve a desired hardness. Then, a coating of titanium nitride is applied to the insert by a physical vapor deposition process or a chemical vapor deposition process. The titanium nitride coating provides a very hard surface to the insert, which permits the insert to be used in the backstopping clutch.

REFERENCES:
patent: 4337300 (1982-06-01), Itaba et al.

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