Belt driving pulley having a roughened surface to reduce noise

Details Belt driving pulley having a roughened surface to reduce noise Belt driving pulley having a roughened surface to reduce noise

1988-03-25

1989-06-13

Bui, Thuy M.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Pulley shifter

15 49C, 474190, F16H 710

Patent

active

048388386

ABSTRACT:
Undesirable noise developing from relative sliding between a belt and a pulley when the traction between the belt and the pulley is loosened to halt the belt from being driven by the pulley is eliminated or alleviated by roughening the inner surface of the pulley to a consistency somewhat like that of sanded wood surface. Preferably, the inner surface is roughened in accordance with published Moldtech Standard 1055-5. The belt has a circular cross-section and is formed of polyurethane. Moreover, the roughened surface on the drive pulley improves the traction between the belt and the drive pulley when the belt is tightened in order to be driven by the drive pulley.

REFERENCES:
patent: 2184545 (1939-12-01), Collier
patent: 3284830 (1966-11-01), Kroll
patent: 3570040 (1971-03-01), Wada
patent: 4366593 (1983-01-01), Parikh
patent: 4658458 (1987-04-01), Berfield et al.

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