Swivel thrust bearing
First Claim
1. A thrust bearing comprising a flat ring member, a lubricating liner embracing the inner periphery of said ring member and both sides thereof adjacent to said inner periphery, and a second member having an annular surface in contact with said liner in facing relation to one side of said ring member, said second member having an integral neck portion extending through the central apertures of said ring member and liner and having integral ledge means extending radially outwardly from said neck portion in contact with the liner on the opposite side of said ring member, said annular surface and ledge means enabling said second member to receive or transmit thrust in either axial direction from or to said ring member through the interposed liner, said integral outwardly-extending ledge means constituting the sole means of maintaining the assembly of said ring member, interposed liner, and second member.
5 Assignments
0 Petitions
Accused Products
Abstract
A "centerless" swivel bearing for chairs and the like in which the two facing, relatively rotatable members are each in sliding contact with an interposed lubricating liner on a ring of substantial diameter defining a central opening in the bearing. One of the two members is necked through the opening of the other and then turned radially outwardly to maintain the assembly of the three constituent parts against loading tending to separate the two members.
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Citations
6 Claims
- 1. A thrust bearing comprising a flat ring member, a lubricating liner embracing the inner periphery of said ring member and both sides thereof adjacent to said inner periphery, and a second member having an annular surface in contact with said liner in facing relation to one side of said ring member, said second member having an integral neck portion extending through the central apertures of said ring member and liner and having integral ledge means extending radially outwardly from said neck portion in contact with the liner on the opposite side of said ring member, said annular surface and ledge means enabling said second member to receive or transmit thrust in either axial direction from or to said ring member through the interposed liner, said integral outwardly-extending ledge means constituting the sole means of maintaining the assembly of said ring member, interposed liner, and second member.
Specification