Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2007-05-01
2007-05-01
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C073S862541, C073S862550, C073S514220
Reexamination Certificate
active
10545396
ABSTRACT:
A revolution speed of balls8, 8constituting the outer side row is sensed by a revolution speed sensor24. Also, a rotation speed of a hub1ais sensed by a rotation speed sensor25. A speed ratio as a ratio between a revolution speed and the rotation speed is calculated based on a sensed signal of both sensors24, 25. When the axial load is changed and then the contact angles of the balls8, 8are changed, the revolution speed is changed and in turn the speed ratio is changed. Therefore, the axial load is calculated based on a change of the speed ratio.Accordingly, the configurations that can be manufactured at a low cost and is able to sense the axial load applied between the hub1aand the outer ring4acan be realized.
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Kumagai Shin
Matsuoka Katsutoshi
Sakatani Ikunori
Yanagisawa Tomoyuki
Kundu Sujoy
Nghiem Michael
NSK Ltd.
Sughrue & Mion, PLLC
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