S-cam for drum brake

Details S-cam for drum brake S-cam for drum brake

1986-09-05

1990-03-06

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

74567, 188 111, 192 93R, F16D 5122

Patent

active

049058002

ABSTRACT:
An improved S-cam (100) for expanding internal shoe (20) drum brakes (10) is provided. The working surfaces (116) of the S-cam are provided at their ends with an extremely high rise/low mechanical advantage portion (122) providing a warning ramp to indicate to the operator that brake relining is required and to minimize the possibility of cam flip.

REFERENCES:
patent: 2369259 (1945-02-01), Simpkins et al.
patent: 2710076 (1955-06-01), Russell
patent: 3096856 (1963-07-01), Burnett
patent: 3398814 (1968-08-01), Deibel
patent: 3952843 (1976-04-01), Campbell et al.
patent: 4260042 (1981-04-01), Szalai et al.

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