ELECTROMAGNETIC CLUTCH ASSEMBLY

摘要

PURPOSE: To provide a clutch and a brake having good service lives and high torque transmission capacities. CONSTITUTION: Clutch and brake components especially adapted for use in electromagnetic clutch assemblies 50 include a first disc 56 or plate having a ground surface 58 comprising parallel surface features and a second disc or plate 64 having a turned surface 66 comprising circular or spiral features. Excellent static and dynamic frictional coefficients are achieved. Preferably, the ground 58 and turned 66 surfaces have roughness of between Ra 3 and 300. A wide variety of variously alloyed steels may be utilized to fabricate the clutch or brake components.