| 摘要 |
FIELD: mechanical engineering; bearings. ^ SUBSTANCE: invention relates to sealed ball or roller bearings with oil film. Proposed antifriction bearing contains great number of solids of revolution, namely, balls or rollers, installed between inner race and outer race, at least one ring shell mechanically coupled with outer race, oil film and seals. Ring shell is mechanically coupled with outer race and is provided with ring contact surface with body element. Oil film is arranged at level of ring contact surface between body element and shell and is limited from sides by sealing rings. Seals close, at least, part of first side port at side of air space. Antifriction bearing contains additionally first oil circulating means to supply oil to oil film and to supply with oil, from said oil film, rolling elements from side of oil space to provide their lubrication. Antifriction bearing contains additionally second oil circulating means independent from first ones for recuperation of oil after lubrication of rolling elements, said second oil circulating means are made to preclude getting of oil to air space. ^ EFFECT: improved sealing at side of air space, simplified design of oil spaces. ^ 13 cl, 4 dwg |
