LINEAR MOTION BEARING WITH OUTER CYLINDER DIVIDED IN THREE PARTS

WIPO Patent Application WO/2013/183763

A1

The linear motion bearing comprises: an outer cylinder (11); a tube-shaped ball cage (13), which is fitted together with the outer cylinder on the inside thereof, is provided with multiple ball circulation paths (12), and is made of synthetic resin; and multiple balls (14) housed in each of the ball circulation paths. The outer cylinder (11) is configured from a main outer cylinder body (11a) obtained from a rigid material and synthetic resin tube-shaped outer cylinder ends (11b) that are provided on each of the two ends of the main outer cylinder body and have a recessed section, which serves as a portion of the wall surface of the ball circulation paths of the tube-shaped ball cage, formed on the inner circumferential surface. Protrusions (21) are provided along the circumferential direction on either the surface of the ball cage near each of the two ends or the surface of the respective outer cylinder ends that faces same, and recesses (22) are provided along the circumferential direction on the other surface. Assembly of the linear motion bearing, in which connection of the tube-shaped ball cage with the tube-shaped outer cylinder ends is achieved by the engagement of said protrusions and recesses, is easy.

OOKAWARA KYOUJU (JP)
SHINDO SHIGEKI (JP)

PCT/JP2013/065840

December 12, 2013

June 07, 2013

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HEPHAIST SEIKO CO LTD (JP)

F16C31/06

JPS5285661A	1977-07-16
JPH09291936A	1997-11-11
JPH09303394A	1997-11-25

YANAGAWA, YASUO (JP)
Yasuo Yanagawa (JP)

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