SECOND TYPE REINFORCED REDUCTION RADIAL BEARING Russian patent published in 2017 - IPC F16C19/22 F16C33/36 

FIELD: machine engineering.

SUBSTANCE: second type reinforced reduction radial bearing contains an outer ring (1) with a possible flange on the raceway and an inner ring (2) with a possible flange on each of the two raceway segments located between the rings of the raceway body, in the form of two-step rollers, and tightening rings (6) in the form of a cylindrical sleeve with internal flanges. The larger diameter roller steps (3) with possible grooves for the flanges and the cylindrical holes (5) for the smaller diameter step (4) are rolled along the raceway of the inner ring (2), and the smaller diameter steps (4) with the obligatory grooves for the flanges are rolled along the raceway of the outer ring (1). The diameters of the larger (3) and smaller (4) roller steps are calculated by the formulas d_r=(D-d)/(1+k), D_r=kd_r; the reduction coefficient of the bearing is calculated by the formula , where D and d are the diameters of the raceways of the outer (1) and inner (2) rings, D_r and d_r - the diameters of the larger (3) and smaller (4) roller steps, s - the bearing reduction coefficient, k - the roller reduction coefficient, and z - the ratio of the larger roller stage diameter (3) to the standard roller diameter with the same diameter of the ring tracks. In each segment of the smaller step (4) of the rollers (3), a cylindrical ring (6) is mounted with smaller inner steps, with inner flanges from one piece, fixing the position of the ring (6) on the rollers (3) and imparting additional rigidity to the ring.

EFFECT: increasing the maximum load on the known reduction bearing designs with stepped first type rollers, increasing the bearing reduction coefficient, increasing the bearing life reduced due to metal fatigue in the rollers, caused by the tendency of the rollers to move relative to each other under the outer load.

3 cl, 1 dwg