Document Type and Number:
Japanese Patent JPH0182323
Kind Code:
U
Abstract:
A hollow roller which comprises a hardened outer surface, and a non-hardened inner surface which has not been subjected to carburization process, whereby soft portions remain at the inner surface of the hollow roller in order to prevent the inner surface from being cracked in response to external shock. Preferably, the hollow roller is applied to a planet roller or a cylindrical roller.
Application Number:
JP17812687U
Publication Date:
June 01, 1989
Filing Date:
November 20, 1987
Export Citation:
International Classes:
F16C13/00; F16C33/34; F16H13/06; F16H13/08; F16H55/32; (IPC1-7): F16C13/00; F16C33/34; F16H13/08
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