Electrocorrosion preventive rolling bearing
To provide an electrocorrosion preventive rolling bearing assembly wherein a final machining of an electrically insulating layer and a thickness control of the insulating layer can easily and accurately be accomplished, the electrocorrosion preventive rolling bearing assembly is of a type in which an inner race (2) or an outer race (3) is formed with an insulating layer (6) so as to cover a peripheral surface thereof, which engages a housing or a shaft, and opposite annular end faces thereof. The insulating layer (6) is a thermally sprayed layer of a metallic oxide. Of the inner and outer races (2) and (3), a raceway member having the insulating layer (6) is provided at its end face with a tool reference plane (7) for a process of finishing the electrically insulating layer (6) or for the thickness control of the insulating layer. This tool reference plane (7) may be either an indented radial surface of a step (8) formed in the end face or a bare portion of the end face that is left uncovered by the insulating layer (6).
NTN Corporation
F F F F H F C C
F16C F16C F16C F16C H02K F16C C23C C23C
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Yukihiro Kosuke Kiyoshi Hideji
Kataoka Inukai Sato Ito