CAGELESS RADIAL-STOP ROLLING BEARING WITH CONIC ROLLERS Russian patent published in 2010 - IPC F16C19/22 F16C19/34 F16C33/34 

FIELD: machine building.

SUBSTANCE: rolling bearing consists of external (1) and internal (5) rings with rolling paths, and of rolling elements installed in upper stage. The rolling elements correspond to conic rollers (2); with their three sections they contact in line only the rolling path of ring (1). In a lower stage two rows of rolling elements made as spherical balls (3) and (4) contact only the rolling paths of ring (5). Each of balls (3) and (4) has contacts in three points - one contact spot is in the rolling path of ring (5), while two other spots contact rollers (2) at continuous and similar rotation velocity. A step-bearing (6) made, for example as a ball, is located in a groove of roller (2) on side of its bigger diametre. The step-bearing has a sleeve and rests on a disk spring (8); also the step-bearing (6) is installed on a rotation axles of roller (2) and contacts a bearing end of a high sideboard. Ring (9) contains an element of the bearing end of the high sideboard. This element is fitted, for example on a cylinder portion of ring (1) and is equipped with a protecting washer (10) with a labyrinth packing. The packing can be made, for example out of slippery rubber. It contacts a section of ring (5). Also smaller steps of rollers (2) are equal by size to diametres of balls (3) and (4); while at least part or all rollers (3) and (4) have a middle connecting link rigidly joining them, for example by laser welding.

EFFECT: higher rotation velocity, pure rolling without slipping, operation under emergency conditions without lubrication, increased carrying capacity, increased service life and reliability, and reduced noise.

3 dwg