Fastener bearing assembly
First Claim
1. A fastener bearing assembly for reducing the turning friction between a head of a fastener and an object to be fastened by the fastener, the assembly comprising:
- a first part having a first pressure transmitting surface;
a second part having a second pressure transmitting surface, and adapted to rotatably receive said first pressure transmitting surface of the first part in facing relation thereto;
a solid dry lubricant material having a low coefficient of friction provided to reduce friction between said first and second pressure transmitting surfaces whereby, in use, said first part can rotate with the head of the fastener and said second part can be held stationary relative to the fastened object so that said dry lubricant material can act as a bearing between the head of the fastener and the fastened object; and
containment means provided in connection with said first and/or second parts for containing said solid dry lubricant material therein whereby, in use, said solid dry lubricant material is capable of withstanding substantial compressive loads without being extruded from between the first and second parts.
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Accused Products
Abstract
A fastener bearing assembly for reducing the turning friction between a head of a fastener and an object to be fastened, for example, a vehicle wheel. The assembly comprises a first part having a first pressure transmitting surface and a second part having a second pressure transmitting surface, and adapted to rotatably receive the first pressure transmitting surface in facing relation thereto. A solid dry lubricant material in the form of an annulus is provided to reduce friction between the first and second pressure transmitting surfaces. In use, the first part rotates with the head of the fastener and the second part remains stationary relative to the surface of the fastened object so that the dry lubricant annulus acts as a bearing between the head of the fastener and the fastened object. A locking member adapted to engage a surface of both the first and second parts may be provided to prevent rotation of the first and second parts relative to one another.
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Citations
11 Claims
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1. A fastener bearing assembly for reducing the turning friction between a head of a fastener and an object to be fastened by the fastener, the assembly comprising:
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a first part having a first pressure transmitting surface; a second part having a second pressure transmitting surface, and adapted to rotatably receive said first pressure transmitting surface of the first part in facing relation thereto; a solid dry lubricant material having a low coefficient of friction provided to reduce friction between said first and second pressure transmitting surfaces whereby, in use, said first part can rotate with the head of the fastener and said second part can be held stationary relative to the fastened object so that said dry lubricant material can act as a bearing between the head of the fastener and the fastened object; and containment means provided in connection with said first and/or second parts for containing said solid dry lubricant material therein whereby, in use, said solid dry lubricant material is capable of withstanding substantial compressive loads without being extruded from between the first and second parts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification