| 摘要 |
A ball screw device includes a screw shaft threaded with a ball nut which has one or more channels, and one or more end deflectors attached to the ball nut to form an endless ball rolling passage in the ball nut and to receive a number of bearing members which may facilitate a movement of the ball nut relative to the screw shaft. The ball nut further includes one or more slots communicating with each of the channels, and each for receiving a cushioning member which may cushion the bearing members for reducing a noise that may be generated by the bearing members and the ball nut and the screw shaft. The cushioning member may selectively apply a lubricating material to lubricate the bearing members.
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