Patent ID: 7491127
Filing Date: 2009-02-17
Classification: F16D,Y10T

Abstract:
1. A spline having a cavity therein for receiving a rotatable shaft having a plurality of outer teeth and for receiving a lubricant, the spline comprising: an inner annular surface proximate the cavity; a plurality of inner teeth extending from said inner annular surface into the cavity and configured to engage the plurality of outer teeth; a plurality of radially transverse slots in said inner annular surface for receiving and retaining the lubricant; and a circumferential groove formed in said inner annular surface and extending through said plurality of inner teeth, said circumferential groove fluidly coupling each slot in said plurality of radially transverse slots; wherein said circumferential groove and said plurality of radially transverse slots are configured to retain the lubricant during operation without receiving additional lubricant from an active lubricant supply source.