This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Specifications
Series
LM501300
Cone Part Number
LM501349
Cup Part Number
LM501314
Design Units
Imperial
Bearing Weight
0.400 Kg
0.80 lb
Cage Type
Stamped Steel
Dimensions
d – Bore
41.275 mm
1.6250 in
D – Cup Outer Diameter
73.431 mm
2.8910 in
B – Cone Width
19.812 mm
0.7800 in
C – Cup Width
16.604 mm
0.6537 in
T – Bearing Width
21.430 mm
0.8437 in
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius1
3.560 mm
0.14 in
r – Cup Backface “To Clear” Radius2
0.76 mm
0.030 in
da – Cone Frontface Backing Diameter
48.01 mm
1.89 in
db – Cone Backface Backing Diameter
54.10 mm
2.13 in
Da – Cup Frontface Backing Diameter
71.10 mm
2.80 in
Db – Cup Backface Backing Diameter
65.02 mm
2.56 in
Ab – Cage-Cone Frontface Clearance
1.8 mm
0.07 in
Aa – Cage-Cone Backface Clearance
0.3 mm
0.01 in
a – Effective Center Location3
-3.3 mm
-0.13 in
Basic Load Ratings
C90 – Dynamic Radial Rating (90 million revolutions)4
19400 N
4360 lbf
C1 – Dynamic Radial Rating (1 million revolutions)5
74800 N
16800 lbf
C0 – Static Radial Rating
74200 N
16700 lbf
Ca90 – Dynamic Thrust Rating (90 million revolutions)6
13300 N
2980 lbf
Factors
K – Factor7
1.46
e – ISO Factor8
0.40
Y – ISO Factor9
1.5
G1 – Heat Generation Factor (Roller-Raceway)
23.3
G2 – Heat Generation Factor (Rib-Roller End)
13.3
Cg – Geometry Factor
