FIELD: machine building.
SUBSTANCE: invention relates to bearing, step retainer and to retention of step in said bearing. Bearing comprises the ring with retaining head (44). Step (34) arranged in said ring has lower recess (42) to accommodate retaining head (44) and to turn thereat while retaining appliance retains step (34) in preset space in said ring. Retaining appliance can apply retaining force to said step (34) in addition to force acting between retaining head (44) and step (34). Retaining force acts if radial direction of the ring, from its centre.
EFFECT: reliable step retention at high rpm, longer life and load capacity.
20 cl, 14 dwg
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