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US5688054: Process for the production of a sleeve-shaped friction bearing and a friction bearing produced according to this process

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Filing Information

Inventor(s) Thore Rabe ·
Assignee(s) None listed in document.
Attorney/Agent(s) Sixbey, Friedman, Leedom & Ferguson, P.C. ·
Primary Examiner Lenard A. Footland ·
Application Number US8318652
Filing date 10/11/1994
Issue date 11/18/1997
Predicted expiration date 10/11/2014
U.S. Classifications 384/295  · 384/296  ·
International Classifications F16C 3304  ·
Kind CodeA
International Classifications 384280;281;295;297;299;300;906;296 ·
Foreign Priority DE4211917.0 - 04/09/1992 ·
16 Claims, No Drawings


Abstract

A process for the production of a sleeve shaped friction bearing including the steps of producing a thin inner sliding layer of a polymeric material free of abrasive fillers on a core by a molding process, producing a longitudinal interruption in an outer surface of the sliding layer from one end to another, and sheathing the inner sliding layer with an outside support of another polymeric material and joining the inner layer with the outside support by filling the interruption.

Independent Claims | See all claims (16)

  1. 1. Process for the production of a sleeve-shaped friction bearing having a longitudinal axis of rotation and with an inner sliding surface facing toward the axis of rotation, a thin, inner sliding layer made of a polymeric material having good sliding properties, and a support surrounding said sliding layer which is made of a polymeric material, the sliding layer having a depression which faces toward the support, and which is filled with the material of which the support is made, comprising the process steps of:A) producing the thin, inner sliding layer a first polymeric material that is free of abrasive fillers on a core by a molding process;B) producing at least one longitudinal interruption in an outer surface of the sliding layer which extends from a first axial end to an opposite axial end of the inner sliding layer with said at least one longitudinal interruption in the outer surface of the sliding layer only partial separating the sliding layer with an underlying web connecting portions of said sliding layer at opposite sides of said longitudinal interruption;C) sheathing the inner sliding layer with an outside support made of a second polymeric material while said inner sliding layer is on said core and joining the inner sliding layer with the outside support in a manner filling said longitudinal interruption with the second polymeric material of the outside support so as to dimensionally stabilize the sliding layer; andD) pushing the sheathed and dimensionally stabilized sliding layer off of said core and then discarding the core.
  2. 16.16. Process for the production of a sleeve-shaped friction bearing having a longitudinal axis of rotation and with an inner sliding surface facing toward the axis of rotation, a thin, inner sliding layer made of a polymeric material having good sliding properties, and a support surrounding said sliding layer which is made of a polymeric material, the sliding layer having a depression which faces toward the support and which is filled with the material of which the support is made, comprising the process steps of:A) producing the thin, inner sliding layer a first polymeric material that is free of abrasive fillers on a core by a molding process;B) producing at least one longitudinal interruption in an outer surface of the sliding layer which extends from a first axial end to an opposite axial end of the inner sliding layer;C) sheathing the inner sliding layer with a cylindrical outside support made of made of at least two layers of alternating hard and flexible polymeric materials joined one over another while said inner sliding layer is on said core and joining the inner sliding layer with the outside support in a manner filling said longitudinal interruption with the the material one of said at least two layers of the outside support so as to dimensionally stabilize the sliding layer; andD) pushing the sheathed and dimensionally stabilized sliding layer off of said core and then discarding the core.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3400988 MATHER CO Hudson Sep 1968

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
FR1449103METZELER AGJul 1966
GB2079867GLACIER METAL CO LTDJan 1982

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