Multiple-row roller bearing
AssigneeHitachi, Ltd.
InventorsShunzo Tomioka, Kinpei Okano, Toshiyuki Kajiwara
Life of this patent
Estimating the term…
Abstract
A bearing comprising rows of rollers disposed between the outer and inner races, wherein a nozzle is provided for supplying lubricating oil mist to the entire periphery of the distance piece provided between said outer races, said nozzle being provided with oil supply apertures directed toward the roller end faces adjacent flange end faces of the inner race, said distance piece being also provided at a part thereof with holes or grooves through which oil can be discharged, said holes or grooves being positioned at a level of or lower than the lowest of roller contacting areas of inner surface of said outer races.
Claims33
A multiple row roller bearing comprising
- at least two rows of roller bearings, each of said rows including inner and outer races for said roller bearings,
- first means for separating the outer races of respective rows of said roller bearings, said first means including nozzle means for injecting lubricant to said roller bearings and discharge means for discharging said lubricant from said roller bearings,
- second means for supplying said lubricant to said nozzle means, and
- third means for exhausting said lubricant from said discharge means, said third means being independent and separated from said second means such that a positive flow of said lubricant through said roller bearings is effected.
Dependencies are inferred from the claim text.