Bearings – Rotary bearing – Antifriction bearing
Patent
1991-05-16
1993-03-09
Hannon, Thomas R.
Bearings
Rotary bearing
Antifriction bearing
384475, F16C 1952, F16C 3366
Patent
active
051921391
ABSTRACT:
A rolling-contact type bearing for rotatably supporting a spindle of a machine is cooled by a temperature controlled liquid lubricant supplied to an internal cavity or passageways provided in the spindle, and circulated toward the bearing so that the temperature controlled liquid lubricant comes into direct or indirect contact with the bearing in the order of the inner race, the rolling element, and the outer recess, to thereby apply a cooling and lubricating effect to those elements. The lubricant after cooling is collected to a lubricant-temperature controller to be subjected to a temperature control treatment for reuse as a coolant. An air seal is applied to a lubricant entrance of the spindle where the temperature controlled lubricant is supplied from a lubricant supply member into the spindle, to thereby prevent a leakage of the lubricant toward the exterior.
REFERENCES:
patent: 2040803 (1936-05-01), Buckwalter
patent: 2944857 (1960-07-01), Schneider
patent: 3195965 (1965-07-01), Van Dorn
patent: 3240541 (1966-03-01), Levesque
patent: 3269786 (1966-08-01), Diver et al.
patent: 3480342 (1969-11-01), Venable
patent: 3531167 (1970-09-01), Edge et al.
patent: 4334720 (1982-06-01), Signer
Hara Hiromi
Hiramoto Kazuyuki
Mochizuki Akihiro
Hannon Thomas R.
Makino Milling Maching Co., Ltd.
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