| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: roller bearing comprises inner, intermediate, and outer races provided with ways and rollers interposed between the races and set in the sockets of the separator. The rollers are two-step. The larger step of the roller of the bottom row is in a contact only with the way of the intermediate race and has two additional contacts with the bottom race. The larger step of the roller of the top row is in a contact with the way in the outer race. The smaller steps are in a contact with ways in the inner race of the bottom row and two sections of the intermediate race of the top row. The ring groove in the ways of the intermediate and bottom races defines a space together with the larger steps of the rollers of the top and bottom rows. The top row is provided with trapezoidal groove. The larger step of the rollers sets the intermediate race in rotation, which causes the rollers of the top row to rotate. The rollers of one of the rows are provided with coaxial openings that are shaped into a Laval nozzle at their exits and are threaded. ^ EFFECT: expanded functional capabilities. ^ 6 dwg |
