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Flexible ribbed, no-backlash ball nut

  • US 5,094,119 A
  • Filed: 03/29/1991
  • Issued: 03/10/1992
  • Est. Priority Date: 03/29/1991
  • Status: Expired due to Fees
First Claim
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1. A ball nut, which comprises a body having a head end, a tail end and a connecting section joining said head end and said tail end, said body having an axial bore extending through said body, said connecting section having a substantially helical path track on said axial bore for receiving a plurality of ball bearings for engaging threads of a lead screw, a solid backbone connecting said head end to said tail end, and a plurality of separate rib members attached to said solid backbone and comprising substantially C-shaped segments of a substantially helical shape corresponding to said substantially helical path track, and a return path for said plurality of ball bearings connecting ends of said substantially helical path track.

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