Timken Part Number 582 - 572, Tapered Roller Bearings - TS (Tapered Single) Imperial

Specifications

Series	575
Cone Part Number	582
Cup Part Number	572
Design Units	Imperial
Bearing Weight	2.1 Kg4.6 lb
Cage Type	Stamped Steel

Dimensions

d - Bore	82.550 mm3.2500 in
D - Cup Outer Diameter	139.992 mm5.5115 in
B - Cone Width	36.098 mm1.4212 in
C - Cup Width	28.575 mm1.1250 in
T - Bearing Width	36.513 mm1.4375 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1	6.860 mm0.270 in
r - Cup Backface "To Clear" Radius2	3.30 mm0.130 in
da - Cone Frontface Backing Diameter	90.93 mm4.4 in
db - Cone Backface Backing Diameter	103.89 mm4.09 in
Da - Cup Frontface Backing Diameter	133.35 mm5.25 in
Db - Cup Backface Backing Diameter	124.97 mm4.92 in
Ab - Cage-Cone Frontface Clearance	2.5 mm0.1 in
Aa - Cage-Cone Backface Clearance	3 mm0.12 in
a - Effective Center Location3	-5.3 mm-0.21 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4	12100 lbf53600 N
C1 - Dynamic Radial Rating (1 million revolutions)5	46500 lbf207000 N
C0 - Static Radial Rating	65400 lbf291000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	8330 lbf37100 N

Factors

K - Factor7	1.45
e - ISO Factor8	0.4
Y - ISO Factor9	1.49
G1 - Heat Generation Factor (Roller-Raceway)	126
G2 - Heat Generation Factor (Rib-Roller End)	32
Cg - Geometry Factor	0.13

Tapered roller bearings are rolling element bearings that can support axial forces (i.e., they are good thrust bearings) as well as radial forces.

The inner and outer ring raceways are segments of cones and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes, if projected, would all meet at a common point on the main axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the OD of the rollers.

This conical geometry creates a linear contact patch which permits greater loads to be carried than with spherical (ball) bearings, which have point contact. The geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs.

E has different special properties with other inner rings or outer rings marked with the same basic parts code, not interchangeable inner rings or outer rings.

There is a stop ring on the outer diameter of RB