To provide a linear motion guide device capable of striking a balance between the alignment performance (absorptivity of an installation error) and the security of load capacity determined by a rolling element and a rolling groove without the problem of member strength, with an inexpensive constitution.
Rolling grooves 11, 12, 211 and 212 formed on both sides in the width direction of a guide rail 1 and in respective sleeve parts 21 of a slider 2, are respectively formed in two rows, balls 3 are used as rolling elements, member rigidity of the sleeve part 21 of the slider 2 is made smaller than rigidity of ball contact parts in the rolling grooves 211 and 212 of the sleeve parts, and a thickness of a base part 22 of the slider 2 is set larger than a diameter of the ball 3. Both sleeve parts 21 of the slider are constituted of an inner sleeve part 21a integrally continued with the base part 22, constituting a portion on the guide rail side and forming the rolling grooves, and an outer sleeve part 21b formed as a separate body from this inner sleeve part 21a and installed outside in the width direction of the inner sleeve part 21a.
| JP2005048844A | 2005-02-24 | |||
| JP2007211819A | 2007-08-23 | |||
| JPH058037U | 1993-02-02 | |||
| JPH09291937A | 1997-11-11 | |||
| JP2003120669A | 2003-04-23 | |||
| JPH02229914A | 1990-09-12 |
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka