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Patent Searching and Data


Title:
LINEAR MOTION ROLLING GUIDE UNIT
Document Type and Number:
Japanese Patent JP2001082470
Kind Code:
A
Abstract:

To restore a pressed track caused on the raceway groove (surface) on a slider side to extend the using life, arranging two ceramic rolling elements facing to a steel rolling element placed on an infinite circulating route.

In this linear motion rolling guide unit, an infinite circulation route is constructed with a load raceway track 21 formed by a raceway groove 4 of a track rail 1 and a raceway groove 14 of a slider 2, a directional converter 23 formed by an end cap 11, and a return passage hole 22 formed by a slider 2. A rolling element, circulating along the infinite circulation route is provided with a steel ball 20 and two ceramic balls 27 arranged at a position dividing the infinite circulation route into two almost equal parts. Any one of the ceramic balls 27 runs along the raceway groove 14 of a slider 4 so that the pressed track possible to be caused on the raceway groove 14 can be restored automatically by the running of the steel ball 20.


Inventors:
MATSUI TAKESHI
SHIMO TAKAHIRO
KATAOKA NORIAKI
Application Number:
JP26009399A
Publication Date:
March 27, 2001
Filing Date:
September 14, 1999
Export Citation:
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Assignee:
NIPPON THOMPSON CO LTD
International Classes:
F16C29/06; (IPC1-7): F16C29/06
Attorney, Agent or Firm:
Onaka Kazushi (1 person outside)