REDUCING RADIAL BEARING OF THE FIRST TYPE Russian patent published in 2018 - IPC F16C19/22 F16C19/24 F16C33/36 

FIELD: machine building; instrumentation.

SUBSTANCE: invention relates to machine building and instrument making and can be used in any industry. Reducing first-type radial bearing includes outer race (1) and inner race (2) with races, rolling bodies arranged between them, made in the form of two-stage rollers installed in the cage sockets. Stages (3) of the larger diameter rollers run around the inner ring (2) raceway, and the stages (4) of the smaller diameter rollers run around the outer ring (1) raceway. Raceways diameters of the rings (1) and (2), and diameters of large and small stages (3) and (4) of the roller are in proportional relationship, at which the ratio D/d = Dr/kdr is equal to n within the permissible range, and the ratio D/D_r = d/kd_r is equal to m, wherein m is determined from the relation m = (n + 1/k) / (n-1), and the diameters of the roller stages are determined from the relations D_r = D/m; d_r = d/km, where D_r – diameter of the larger stage (3) of the roller; d_r – diameter of the smaller stage (4) of the roller; D is the diameter of the raceway of the outer ring (1); d is the diameter of the inner ring (2) raceway; k is an additional factor chosen by the consumer, which reduces the speed of rotation of the rollers by a factor of k; n is the ratio of the ring (1) raceway diameter to the ring (2) raceway diameter; m is the ratio of the outer ring (1) raceway diameter to the diameter of the roller (3) larger stage. Bearing reduction coefficient is determined from the relation s = zkn, where z is the ratio of the D_r diameter to the standard roller bearing diameter d_st.r D_r/d_st.r, n is the ratio of D diameter to d D/d diameter.

EFFECT: technical result is increase in the inner ring rotational speed relative to its fixed outer ring at the same rotation speed of the rollers by a factor of s (where the diameters of the roller stages can be calculated by selecting the set value s), reducing the energy of the fuel or electricity spent in rotating the reduction bearing with the frequency of the standard bearing , associated with a decrease in the frequency of rotation of the rollers (a decrease in their kinetic energy) and the absence of sliding friction of the reduction bearing that accompanies the ball bearing operation.

2 cl, 2 dwg