Timken Part Number JL819349 - JL819310, Tapered Roller Bearings - TS (Tapered Single) Metric

Specifications

Series	L819300
Cone Part Number	JL819349
Cup Part Number	JL819310
Design Units	METRIC
Bearing Weight	0.9 Kg1.9 lb
Cage Type	Stamped Steel

Dimensions

d - Bore	95 mm3.7402 in
D - Cup Outer Diameter	135.000 mm5.3150 in
B - Cone Width	20.000 mm0.7874 in
C - Cup Width	14 mm0.5512 in
T - Bearing Width	20.000 mm0.7874 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1	5.080 mm0.2 in
r - Cup Backface "To Clear" Radius2	2.54 mm0.1 in
da - Cone Frontface Backing Diameter	102.11 mm4.02 in
db - Cone Backface Backing Diameter	111 mm4.37 in
Da - Cup Frontface Backing Diameter	130.00 mm5.12 in
Db - Cup Backface Backing Diameter	122.94 mm4.84 in
Ab - Cage-Cone Frontface Clearance	2 mm0.08 in
Aa - Cage-Cone Backface Clearance	2 mm0.08 in
a - Effective Center Location3	10.9 mm0.43 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4	25500 N5740 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5	98400 N22170 lbf
C0 - Static Radial Rating	133000 N29900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	25500 N5740 lbf

Factors

K - Factor7	1
e - ISO Factor8	0.58
Y - ISO Factor9	1.03
G1 - Heat Generation Factor (Roller-Raceway)	93.3
G2 - Heat Generation Factor (Rib-Roller End)	70.5
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