FIELD: mechanical engineering. SUBSTANCE: ring and radial grooves 12 and 13 are made in sides 6 and 7 of bearing races 4 and 5 of bearing 3. Sides 6 and 7 are in contact with the outer race 10. The grooves are connected with passage 11 for supplying lubricant and with space 2. Oil, which circulates in grooves 12 and 13, improves lubricating and heat removing from the zone of contact of bearing rings 4 and 5 with outer race 10. EFFECT: increased longevity. 2 dwg
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