MULTI-ROW SYMMETRICAL ROLLING BEARING AND BEARING UNIT OF WHEEL HUB WITH SAID ROLLING BEARING Russian patent published in 2011 - IPC F16C19/18 B60B27/00 

FIELD: machine building.

SUBSTANCE: rolling bearing (1) has first ring (2), second ring (3) and multitude of rolling elements (5) located between first ring (2) and second ring (3). Rolling elements (5) are arranged at least in four rows (11, 12, 13, 14), at least two rows (11, 14) have first diametre (Tk1, Tk4) of pitch line and at least two other rows (12, 13) have second diametre (Tk2, Tk3) of pitch line different from first diametre (Tk1, Tk4). Rows (11, 14) having equal diametres (Tk1, Tk4), and rows (12, 13) having equal diametres (Tk2, Tk3), are arranged symmetrically relative to middle plane (ME) positioned perpendicular to lengthwise direction (LR) of bearing both by number of rows and by corresponding diametres of pitch line. External diametre (F) of bearing on the side of a flange is at 6 mm bigger, than sum of diametre (Tk1) from the side of the flange and diametre (Dw1) of rolling element (5) from the side of the flange or diametre (Tk3) of row (13), located inside is bigger at over 3.5 mm, than internal pilot diametre (A) of rolling bearing.

EFFECT: bearing for heavy load on axle fabricated and assembled at allowable expenditures.

14 cl, 2 dwg