Patent ID: 6698762
Filing Date: 2004-03-02
Classification: F16C,F16J,H02K

Abstract:
A lubricant leakage stop for a rotary device shaft comprising:a shaft having a center axis of rotation defining mutually perpendicular axial and radial directions relative to the shaft, the shaft having an axial length with opposite first and second ends and an outer surface between the shaft first and second ends; an annular groove in the shaft outer surface between the shaft first and second ends; a first radial surface at a side of the groove that is adjacent the shaft first end, the first radial surface intersecting the shaft outer surface at an annular, right angle corner; a second radial surface at a side of the groove that is adjacent the shaft second end, the second radial surface intersecting the shaft outer surface at an annular, chamfered corner; and, the shaft outer surface having equivalent outer diameter dimensions on axially opposite sides of the right angle corner and the chamfered corner.