Timken Part Number M86649 - M86610, Tapered Roller Bearings - TS (Tapered Single) Imperial

Specifications

Series	M86600
Cone Part Number	M86649
Cup Part Number	M86610
Design Units	Imperial
Bearing Weight	0.30 Kg0.7 lb
Cage Type	Stamped Steel

Dimensions

d - Bore	30.163 mm1.1875 in
D - Cup Outer Diameter	64.292 mm2.5312 in
B - Cone Width	21.433 mm0.8438 in
C - Cup Width	16.670 mm0.6563 in
T - Bearing Width	21.433 mm0.8438 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1	1.520 mm0.06 in
r - Cup Backface "To Clear" Radius2	1.52 mm0.06 in
da - Cone Frontface Backing Diameter	38.10 mm1.5 in
db - Cone Backface Backing Diameter	43.94 mm1.73 in
Da - Cup Frontface Backing Diameter	60.96 mm2.40 in
Db - Cup Backface Backing Diameter	54.10 mm2.13 in
Ab - Cage-Cone Frontface Clearance	1.8 mm0.07 in
Aa - Cage-Cone Backface Clearance	0.8 mm0.03 in
a - Effective Center Location3	-3.3 mm-0.13 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4	3510 lbf15600 N
C1 - Dynamic Radial Rating (1 million revolutions)5	13500 lbf60200 N
C0 - Static Radial Rating	16100 lbf71700 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	3280 lbf14600 N

Factors

K - Factor7	1.07
e - ISO Factor8	0.55
Y - ISO Factor9	1.1
G1 - Heat Generation Factor (Roller-Raceway)	16.8
G2 - Heat Generation Factor (Rib-Roller End)	9.36
Cg - Geometry Factor	0.0736

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