Fastener assembly for clamped wheels

Details Fastener assembly for clamped wheels Fastener assembly for clamped wheels

B - Operations, Transporting

60

B

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B60B 31/00 (2006.01) F16B 31/04 (2006.01) F16B 39/26 (2006.01) F16B 43/00 (2006.01)

Patent

CA 1212975

FASTENER ASSEMBLY FOR CLAMPED WHEELS Abstract of the Disclosure A fastener assembly for clamped vehicle wheel instal- lation includes a nut engageable with a wheel hub supported stud and a resiliently deformable clamp washer. A washer clamp surface engageable with the wheel is conical and inclined to the radial direction at an initial clamp surface cone angle. Interfacing bearing surfaces are defined on the nut and clamp washer and define an initial bearing surface separation angle not smaller than the initial clamp surface cone angle. The nut bearing surface is inclined at an angle related to the coefficient of friction at the bearing surfaces to avoid subjecting the clamp washer to undesirable hoop stresses. Substantial spring forces are achieved with a com- pact assembly because the axial offset of the clamp washer is substantial in relation to the radial offset. Radial clamp washer offset provides a differential in friction radii to prevent rotation of the clamp washer relative to the wheel.

437046

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