Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1989-02-27
1990-01-16
Eley, Timothy V.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291484D, 291484A, 384491, 384450, 384565, B21B 3107
Patent
active
048933872
ABSTRACT:
A roller element for use in a roller bearing having a surface formed with minute recesses at random so that the ratio RMS(L)/RMS(C) will be not more than 0.8 wherein RMS(L) is the roughness mean square value in the longitudinal direction and RMS(C) is the roughness mean square value in the circumferential direction and so that the SK value is not more than -0.2 in both the longitudinal and circumferential directions.
REFERENCES:
patent: 2623796 (1952-12-01), Frenkel
patent: 2631904 (1953-03-01), Frenkel
patent: 4227754 (1980-10-01), Kellstrom
patent: 4334721 (1982-06-01), Satoh et al.
patent: 4345800 (1982-08-01), Hofmann et al.
patent: 4705411 (1987-11-01), Kellstrom
"Quality and productivity through surface measurement" Rank Taylor Hobson Limited, England, 1986.
Akamatsu Yoshinobu
Goto Toshihide
Hibi Kenji
Kotani Morikatu
Matsushima Toshihiko
Eley Timothy V.
NTN Toyo Bearing Co. Ltd.
Vo Peter
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