Rolling device
AssigneeNsk Ltd.
InventorsToshikazu Yabe, Keisuke Yokoyama, Shintaro Honda, Nariaki Aihara
Life of this patent
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Abstract
A linear motion device includes a linear motion body that is fitted onto a screw shaft and moves straight along the screw shaft, a large number of balls held in a ball groove formed on an inner surface side of the linear motion body and rolling between the ball groove and the screw shaft, a separator interposed between each ball, a circulation passage formed in the linear motion body and circulating the ball from one end side of the ball groove to the other end side, where at least one of the separator and the circulation passage is formed from polyamide 410 by injection molding.
Claims9
A rolling device comprising:
- a first member and a second member that are movable relative to each other;
- a rolling element installed between the first member and the second member;
- and a holding member that holds the rolling element, wherein
- the holding member is formed from a polyamide resin composition made of polyamide 410, and
- a bio degree of the polyamide 410 is 100%.
A rolling device comprising:
- a first member and a second member that are movable relative to each other;
- a rolling element installed between the first member and the second member;
- and a holding member that holds the rolling element, wherein
- the holding member is formed from a polyamide resin composition made of polyamide 410, and
- the rolling device is a linear motion device in which the first member is a shaft, the second member is a linear motion body that moves straight along the shaft, the rolling element is a plurality of balls held in a ball groove formed on an inner surface side of the linear motion body and rolling between the ball groove and the shaft, and the holding member is a separator interposed between each of the balls, and a circulation passage is provided that is formed in the linear motion body and circulates the balls from one end side to the other end side of the ball groove.
Dependencies are inferred from the claim text.