Rolling guide apparatus and roller connecting body

Details Rolling guide apparatus and roller connecting body Rolling guide apparatus and roller connecting body

2005-09-06

2005-09-06

Footland, Lenard A. (Department: 3682)

Bearings

Linear bearing

Recirculating

Reexamination Certificate

active

06939043

ABSTRACT:
A rolling guide apparatus includes a track rail having roller raceway surfaces and a roller circulation path including load roller raceway surfaces corresponding to the roller raceway surfaces, and plural rollers arranged and housed in the roller circulation paths and circulate in association with movement of a moving block relative to the track rail. Each roller has a ratio of approx. 1.5<L/Da<approx. 3. By setting the ratio of roller length to roller diameter to a value of approx. 1.5<L/Da, the basic static load rating of a rolling guide apparatus of roller type becomes greater than that of a rolling guide apparatus of ball type when the pieces of the apparatus are of same model. By setting the ratio to a value of L/Da<approx. 3, occurrence of skew is prevented without failure without involvement of rigorous dimensional control of the axial clearance.

REFERENCES:
patent: 3642330 (1972-02-01), Newman
patent: 4396235 (1983-08-01), Teramachi
patent: 6312158 (2001-11-01), Teramachi et al.
patent: 6626572 (2003-09-01), Teramachi
patent: 2373618 (2000-04-01), None

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