Brake drum micro-finishing apparatus

Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof

Patent

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Details

51145R, 51142, 51237R, B24B 2116, B24B 2902

Patent

active

052493938

ABSTRACT:
An apparatus for micro-finishing a brake drum braking surface. The invention uses a center of rotation gaged from the unfinished braking surface to properly position the brake drum on the apparatus and position a shoe for engagement with the braking surface A film, having an abrasive surface, is routed over the shoe so that the abrasive surface will contact the braking surface. The brake drum is rotated and the film is urged into contact with the braking surface while the film and the shoe are axially oscillated along the rotational axis of the brake drum. In mounting the brake drum on the micro-finishing apparatus, a mechanism is provided for simulating the mounting forces normally incurred by the brake drum during use.

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