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Hydraulically controlled clutch release bearing for a motor-vehicle diaphragm clutch

  • US 5,865,288 A
  • Filed: 10/09/1996
  • Issued: 02/02/1999
  • Est. Priority Date: 02/09/1995
  • Status: Expired due to Fees
First Claim
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1. Hydraulically controlled clutch release bearing for a clutch (1) with a diaphragm (13) having a fixed portion (5, 6) comprising an outer body (5) in a mouldable material and a concentric inner support tube (6), distinct from the outer body (5) and defining a blind annular cavity (50) of axial orientation capable of being supplied with fluid and inside which is mounted an axially movable tubular piston (4) carrying a drive member (3) capable of acting on the diaphragm (13) of a clutch (1), wherein the inner support tube (6) has at its rear end (100) opposite the diaphragm (13) an annular flange (61) of transverse orientation by means of which it bears on a fixed part (21), and wherein the rear end of the body (5) opposite the diaphragm (13) is indented (112, 124) for clamping the flange (61) between the body (5) and the said fixed part (21), and wherein the annular flange (61) has an annular centering rim (62, 162) of axial orientation for centering the inner support tube (6) in a fixed portion, and the annular centering rim (162) extends axially from the outer peripheral edge of the annular flange (61).

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