All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cones > Tapered Roller Bearings - Single Cones - Imperial > Part Number LL469949  

Part Number LL469949, Tapered Roller Bearings - Single Cones - Imperial

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

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  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Cone Part Number
LL469949

Design Units
Imperial

Cage Type
Stamped Steel

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
242000 lbf
1080000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
62800 lbf
279000 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Dimensions

d - Cone Bore
17.6250 in
447.675 mm

B - Cone Width
1.6385 in
41.618 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.13 in
3.300 mm

da - Cone Frontface Backing Diameter
18.19 in
462 mm

db - Cone Backface Backing Diameter
18.35 in
466 mm

Ab - Cage-Cone Frontface Clearance
0.25 in
6.3 mm

Aa - Cage-Cone Backface Clearance
0.1 in
2.5 mm

a - Effective Center Location2
1.38 in
35.1 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
36000 lbf
160000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
139000 lbf
618000 N

C0 - Static Radial Rating
340000 lbf
1510000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
22500 lbf
100000 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
1.6

G1 - Heat Generation Factor (Roller-Raceway)
3160

G2 - Heat Generation Factor (Rib-Roller End)
930

Cg - Geometry Factor2
0.191
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances