ROLLING BEARING WITH STEP ROLLERS AND CAGE FOR ROLLING BEARING WITH STEP ROLLERS Russian patent published in 2015 - IPC F16C19/22 F16C33/36 

FIELD: machine building.

SUBSTANCE: rolling bearing with step rollers contains an external ring (1) and an internal ring (2) with races, located between them rolling bodies made as two-step rollers installed in cage sockets, larger step (3) diameter contacts with race of the ring (1), and smaller step (4) diameter contacts with race of its ring (2). Race diameters of the rings (1) and (2), and diameters of large and small steps (3) and (4) of the roller are in proportional relationship. Ratio d₁/kd₂ = D₁/D₂ = n and is equal to any number in permitted range, and ratio D₁/d₁ = D₂/kd₂ = m, at that m is determined from equation: m = (n+1/k)/(n-1), and d₁ and d₂ is determined from the relationship: d₁=D₁/m; d₂=D₁/km,

Where is d₁ is diameter of the large step (3) of the roller; d₂ is diameter of the small step (4) of the roller; D₁ is diameter of ring (1) of the race; D₂ is diameter of ring (2) of the race; k any factor decreasing rollers speed of rotation relatively to the bearing axis. The cage is made as framework out of two washers (5) connected with each other by axles (8), on them with possibility of rotation the tubes (9) are installed, they are filled with solid substance with small coefficient of sliding friction.

EFFECT: increased speed of rotation of the external ring relatively to the fixed internal ring without increased speed of rotation of the rollers, reduced sliding friction force between the cage and rotating bodies, and increased bearing durability.

3 cl, 2 dwg, 1 ex.