Lubricant composition, expandable shaft, and steering system...

Details Lubricant composition, expandable shaft, and steering system... Lubricant composition, expandable shaft, and steering system...

2007-03-08

2010-06-22

Caldarola, Glenn A (Department: 1797)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Ptfe

C508S110000, C585S010000

Reexamination Certificate

active

07741256

ABSTRACT:
A lubricant composition contains poly-α-olefin oil having a kinematic viscosity of 1500 to 13000 mm2/s (40° C.) as a base oil and from 45 to 50% by weight of a thickener composed of polytetrafluoroethylene. The lubricant composition may be used for lubricating an expandable shaft having a pair of shaft members filled with the lubricant composition to prevent stick-slip from occurring when a high surface pressure is applied thereto, thereby allowing consistent maintenance of good lubricating performance. Such an expandable shaft may be incorporated advantageously into a steering system as an intermediate shaft into an area between a steering shaft and a rack-and-pinion mechanism.

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patent: 2001-050293 (2001-02-01), None
patent: 2004276725 (2004-10-01), None

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