Patent ID: 7182578
Filing Date: 2007-02-27
Classification: F16D,Y10T

Abstract:
1. A spindle coupling structure, comprising: a ceramic spindle; a metal bushing having a housing space receiving one end of said spindle at an inlet, said housing space having a fixed taper extending inwardly from the inlet so that an inner diameter inside the housing space is smaller than a diameter of the inlet; a hub having a connecting section directly for receiving said metal bushing so that said spindle is located inside said metal bushing and said metal bushing is located inside said hub and said ceramic spindle is operably connected to said hub through said metal bushing; said ceramic spindle being mounted in said housing space by being inserted through said inlet so as to be held tight to said metal bushing by forcing an outer diameter of said ceramic spindle directly against the inner diameter of said housing space due to the taper in said housing space to that an outer surface of said metal bushing frictionally engages said connecting section of the hub.