1994-03-01

Effect of Overrunning Speed and Plate Gap on Power Dissipation in MD Type One Way Clutches 940730

The Mechanical Diode one way clutch was developed as a high strength alternative to roller ramp and sprag clutches where high torque or limited space are overriding considerations. The planar ratchet design of the MD is ideal for providing single or dual one way functions with minimal axial space required.
This paper presents an evaluation of the MD's overrunning characteristics. MD's of various sizes and with varied internal gap geometry have been overrun at speeds between 1,000 and 11,000 rpm. Speeds, overrunning torques and lubricant temperatures are recorded and overrunning power dissipation characteristics of MD's are presented in tabular and graphic form.

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