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Low-friction Heavy-duty Caster Assembly

IP.com Disclosure Number: IPCOM000059824D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Ellis, RE: AUTHOR [+2]

Abstract

Low friction is attained in a heavy duty caster assembly through use of lubricated thrust washers, having a raised surface which provides a small contact area, at a short radius, with the side frame of the caster.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Low-friction Heavy-duty Caster Assembly

Low friction is attained in a heavy duty caster assembly through use of lubricated thrust washers, having a raised surface which provides a small contact area, at a short radius, with the side frame of the caster.

The caster assembly consists of wheel 10 which is connected to frame 11 through roller bearing axle assembly 12. Thrust washers 13 are press fitted into a counterbore in each side of wheel 10, centered on the axle line, and allowing for a small clearance 14 between the washer and the axle. Thrust washers 13 have an annular thrust surface 15 raised approximately 0.025 inch beyond side face 20 of wheel 10. Raised thrust surface 15, having a radial dimension of approximately one-half the radius of washer 13, provides a small contact area to frame 11.

Thrust washers 13 are made of oil-filled porous metal providing lubrication to the contact area.

Disclosed anonymously.

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