Overrunning Clutch
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United States of America Patent
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Issued Date -
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app pub date -
May 18, 2007
filing date -
May 19, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An overrunning clutch is provided that facilitates the use of grease lubrication and use of the clutch in high speed and/or high torque applications. In accordance with one aspect of the invention, a seal is disposed between the rollers in the clutch and a bearing that is disposed between the input and output members and the inner raceway, outer cam surfaces, rollers and bearing are lubricated with grease. In accordance with another aspect of the invention, the mass of the rollers and the stiffness of the springs acting on the rollers are selected to provide a high natural frequency for the roller and spring system to enable the clutch to better withstand torsional vibration in high speed and/or high torque applications.
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