Linear motion rolling guide unit

Bearings – Linear bearing – Recirculating

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F16C 2906

Patent

active

053854063

ABSTRACT:
A linear motion rolling guide unit equipped with a long slider composed of a coupling of a plurality of casings obtains an increase in the rated load while setting the total length of the slider to a suitable length to match the machine tool in which it is to be incorporated, while also maintaining a smooth sliding state at all times even if the casings shift out of position. These advantages are obtained by juxtapositioning a spacer between each casing, and making rolling element guide track grooves provided in said spacer larger than load bearing track grooves formed in each casing to allow the rolling element guide track grooves to act as reliefs for rolling elements.

REFERENCES:
patent: 4854741 (1989-08-01), Mottate et al.
patent: 4932279 (1990-06-01), Kasuga
patent: 4934834 (1990-06-01), Morita

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