Clutch discs for a fluid friction clutch and process for making

Details Clutch discs for a fluid friction clutch and process for making Clutch discs for a fluid friction clutch and process for making

1986-04-11

1988-09-06

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

29159R, 295274, 295277, 51281SF, 51326, B23P 1300

Patent

active

047682817

ABSTRACT:
Lamellar clutch discs consisting of sheet steel and arranged in an enclosed housing filled with a viscous liquid medium for a fluid friction clutch are described. To achieve a torque transmission behavior of the clutch that will remain constant over long periods of time, the surfaces of the discs are to exhibit a roughness with an arithmetic mean rugosity R.sub.a in the range between 0.2 and 2 microns and a profile depth P.sub.t in the range between 2 and 15 microns. Furthermore, the distance between neighboring elevations of the rugosity profile is to lie in the range between 50 and 750 microns, and the surfaces are to have a wear-reducing nickel-phosphorus coating.

REFERENCES:
patent: 2079513 (1937-05-01), Lapsley
patent: 2836514 (1958-05-01), Munster et al.
patent: 3818649 (1974-06-01), Klievoneit
patent: 4586296 (1986-05-01), Saunders
patent: 4586360 (1986-05-01), Jurgensmeyer et al.
patent: 4599827 (1986-07-01), Goodwin

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