Self-lubricating surface coating composition
AssigneeNew Hampshire Ball Bearings, Inc.
InventorsRichard Soelch, Thomas Auletto, Grant Drew
Life of this patent
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Abstract
Self-lubricated bearings contain a substratum and a self-lubricating surface coating composition disposed thereon, wherein the self-lubricating surface coating composition further contains at least one cured thermosetting acrylate and at least one phenolic resin. The phenolic resin preferably contains a mixture of phenolic resin and polyvinyl formal resin. A self-lubricating surface coating composition is also provided, as well as several methods of making the bearings. The self-lubricated bearings of the present invention have surprisingly long service lives.
Claims14
A bearing, comprising:
- a substratum;
- and
- a self-lubricating surface coating composition disposed on the substratum, wherein the self-lubricating surface coating composition further comprises at least one cured thermosetting acrylate layer and at least one phenolic resin layer, wherein the at least one cured thermosetting acrylate layer is distinct from the at least one phenolic resin layer.
A self-lubricating surface coating composition comprising:
- at least one cured thermosetting acrylate layer and at least one phenolic resin layer,
- wherein the at least one cured thermosetting acrylate layer is distinct from the at least one phenolic resin layer,
- a lubricant selected from the group consisting of polytetrafluoroethylene fibers, polytetrafluoroethylene floc, polytetrafluoroethylene powder, graphite, talc, molybdenum disulfide, tungsten disulfide;
- boron nitride, copper, perfluoropolyethers, silicone fluids, oils, waxes, and combinations thereof;
- reinforcing fillers selected from the group consisting of glass fibers, carbon fibers, aramid fibers, wool fibers, polyester fibers, polymer fibers, mineral fillers, and combinations thereof;
- a thixotrope selected from the group consisting of fumed silica, modified ureas, and combinations thereof;
- and
- an initiator slected from the group consisting of benzoyl peroxide, cumenehydroperoxide, methyl ethyl ketone peroxide, photoinitiators and combinations thereof.
Dependencies are inferred from the claim text.