COMPLEX CAGELESS BEARING Russian patent published in 2010 - IPC F16C19/54 F16C33/34 

FIELD: machine building.

SUBSTANCE: complex cageless bearing consists of thrust and radial cageless bearings. The bearing consists of external ring (1) combined with tight ring (5) of the thrust bearing, of rolling elements installed between internal (2) and tight (5) rings and made in form of rollers of a two-step type on a section of the radial bearing. A bigger step of rollers (3) of an upper stage of four sections contact only a rolling path of ring (1) along a line, while bigger steps of rollers (4) of a lower stage with their three sections contact only the rolling path of ring (5) along a line. Smaller steps of rollers (3) made with three sections contact bigger sections of rollers (4) along a line. Conic rollers (6) contacting rolling paths and each other are arranged in two rows between tight ring (5) and section of ring (1). Rollers (6) are made with step-bearings contacting a bearing side high sideboard of rings (5) and (1). Ring (1) consists of two protecting washers (7) and (8) on a radial section of the bearing and two washers on the section of the thrust bearing: locking washer (10) above, and additional washer (9) below. Step-bearings of a spherical type, for example on one side contacting board of ring (1) are made at least on three or on all rollers (3) along roller axis. Washer (9) is, for example of a bellows type, and rollers (4) are made short.

EFFECT: facilitating high velocity of rotation, reverse operation, prolonged operation under emergency conditions without lubrication, reduced noise, increased carrying capacity, increased service life and reliability of bearing operation, and elimination of distortion and wedging of rollers.

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