Bearing seal and method of manufacture
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United States of America Patent
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-
Apr 7, 1987
Grant Date -
N/A
app pub date -
Jan 28, 1986
filing date -
Jan 28, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention includes a method for the manufacture of a bearing seal which includes providing a polymer and/or a filler coated with a polymer and thereafter heating the coated filler to bond the copolymer to the filler. Following cooling of the coated filler, it is pulverized and added to granular polytetrafluoroethylene. This admixture is then mixed to obtain a uniform blend and thereafter shaped by compacting and heating into a preselected form. Fillers suitable for the present invention may be carbon, metal, glass, carbide, disulfide, polymeric, polyester fluoride and ceramic fibers.
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