发明授权
US06178839B2 Ball screw with lubricating grease and seal member of solid lubricating composition 有权
滚珠丝杠带润滑脂和固体润滑组合物的密封件

Ball screw with lubricating grease and seal member of solid lubricating composition
摘要:
A plurality of balls 3 are disposed for rolling and circulation in a spiral calculation passage defined between a spiral screw groove surface 1a formed on the outer periphery of a screw shaft 1 and a spiral screw groove surface 2a formed on the inner periphery of a ball nut 2. The opposite ends of the ball nut are each formed with a seal mounting portion 2b, in which a seal member 4 made of solid lubricating composition is mounted, sealing off the ball nut 2. The ball nut 2 has lubricating grease G sealed therein.
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