JOURNAL ROLLING BEARING FOR MEDIUM WHEEL PAIR OF LOCOMOTIVE Russian patent published in 2009 - IPC F16C19/22 F16C19/32 F16C33/34 B61F15/12 

FIELD: mechanical engineering.

SUBSTANCE: invention refers to the field of mechanical engineering and may be used on highways of passenger and freight railway transport. The journal rolling bearing contains inner and outer rings with race ways, rolling bodies fitted between them. Rolling bodies represent rollers installed in separator sockets. The rollers are made two-step. Larger diametre of roller step is only rolled over race way of bearing outer ring. Smaller diametre of roller steps is made with two regions which are only rolled over race ways of inner ring with constant and equal rotation frequency. Race way of the bearing inner ring is made with slot to form gap with large diametre of roller step. The rollers have axial bearings at two sides which axial bearings interact and contact with movable rings while locomotive is going into a curve when medium wheel pair moves in axial direction, movable rings are located at two sides and have axial movement and possibility to rotate with rotation frequency of bearing separator on integrated axial bearings containing rolling bodies (balls). Movable rings dampen impact loads and protect against chipping, wearing of roller faces and ring shoulders, shoulder chipping.

EFFECT: providing higher rotation frequency, higher reliability and durability, reduction of frictional torque and friction factor; bearing operation without roller slip.

4 dwg