| 摘要 |
A ball nut and return liner assembly includes a ball nut having a tubular body having a longitudinal axis, the tubular body having an inner surface and an outer surface, a plurality of arcuate grooves defined on the inner surface. A longitudinal slot is defined on the inner surface parallel to the longitudinal axis, interrupting the plurality of arcuate grooves, and forming a pocket for receiving the return liner, the longitudinal slot having first curved walls. The return liner is provided with a first surface having a plurality of S-shaped return grooves extending from the first side to the second side to cooperate with the plurality of arcuate grooves in the ball nut. The return liner is further provided with a second surface for fitting within the longitudinal slot within the ball nut, the second surface having second curved walls.
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