Title:
RESIN WOUND BEARING
Document Type and Number:
Japanese Patent JPH1151063
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make easy production with low cost and applicable to various kinds of rollers by providing inner and outer resin layers overlapping inward/outward on the outer periphery of an outer ring, the former made of higher hardness resin than the latter, the latter integrally fused therewith by injection molding. SOLUTION: Inner and outer resin layers 7, 8 mutually overlapping inward/outward are provided on a metal-made outer ring 4 of a roller bearing 1, wherein the hardness of layer 8 is not more than JIS standard D60, and the layer 7 is formed of resin of JIS standard D60 or above requiring no adhesion step to the metal material of the ring 4 while the layer 7 is formed by insertion on the outer periphery of the outer ring 4. The layer has the specified hardness or more so that it is firmly integrated with the outer ring 4 and accordingly no adhesion step is not required therefor. When the layer 8 is injected to the outer periphery of the layer 7, the surface is fused by the heat of resin, thereby fixing soft resin to the ring 4 surface. Since the layer 7 has a rigidity the outer diameter of roller can be made large irrespective of the thickness of the layer 8, and an annular recess 8a of the layer 8 is fitted to a flange 7a of the layer 7 and thereby fixing strength is assured. Accordingly, easy production with low cost is attained while making the outer peripheral surface a soft surface excellent in its conveying characteristic.
Inventors:
HORI SEIJI
Application Number:
JP20426497A
Publication Date:
February 23, 1999
Filing Date:
July 30, 1997
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C27/06; F16C33/58; F16C35/077; (IPC1-7): F16C33/58; F16C27/06; F16C35/077
Attorney, Agent or Firm:
Masashi Noda (1 person outside)