Rotary body of hard material with plastic supporter
AssigneeAdachishin Industrial Co., Ltd.
InventorsMinoru Adachi, Takashi Kizawa
Life of this patent
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Abstract
A rotary body of hard material with a plastic supporter and a method of manufacturing therefor, which essentially comprises a coating film coated with the rotary body and removed after molding so as to make a clearance between the rotary body and the supporter, so that rotation of the rotary body may be allowed smoothly. The method of this invention defines steps of molding, coating of film and removing of the film so as to obtain rotation of rotary body relative to the plastic supporter.
Claims15
A product by process for forming a bearing construction having at least one rotary body, which comprises coating said at least one rotary body with a removable coating film having a thickness of from about 8.mu. to about 15.mu., positioning said at least one coated rotary body within a fixedly supporting holder means with at least a portion of said at least one coated rotary body arranged to extend beyond at least one surface of said holder means, and removing said removable coating film from said at least one coated rotary body, thereby leaving a spacing of from about 2 .mu.m to about 6 .mu.m between said at least one rotary body and said holder means in order to form said bearing construction with a spacing between said at least one rotary body and said holder means for free rotation of said at least one rotary body relative to said holder means.
Dependencies are inferred from the claim text.