USED LM104949 + LM104911 Timken Tapered Roller Bearings Set

Section: D-17

USED LM104949 + LM104911 Timken Tapered Roller Bearings Set

Manufacturer: Timken

Part Numbers: LM104949 / 104949, LM104911 / 104911

Condition: Used

Quantity: 1 pair

Specifications:

Series LM104900

Cone Part Number LM104949

Cup Part Number LM104911

Design Unit Inch

Bearing Weight 0.9 lb 0.40 Kg

Cage Material Stamped Steel

Dimensions:

d - Bore 2.0000 in 50.8 mm

D - Cup Outer Diameter 3.25 in 82.55 mm

B - Cone Width 0.8750 in 22.225 mm

C - Cup Width 0.6500 in 16.510 mm

T - Bearing Width 0.8500 in 21.590 mm

Abutment and Fillet Dimensions:

R - Cone Backface "To Clear" Radius1 0.140 in 3.56 mm

r - Cup Backface "To Clear" Radius2 0.05 in 1.27 mm

da - Cone Frontface Backing Diameter 2.2 in 56 mm

db - Cone Backface Backing Diameter 2.48 in 63 mm

Da - Cup Frontface Backing Diameter 3.11 in 78.00 mm

Db - Cup Backface Backing Diameter 2.95 in 74.93 mm

Ab - Cage-Cone Frontface Clearance 0.1 in 2.5 mm

Aa - Cage-Cone Backface Clearance 0.03 in 0.8 mm

a - Effective Center Location3 -0.23 in -5.8 mm

Basic Load Ratings:

C90 - Dynamic Radial Rating (90 million revolutions)4 5610 lbf 25000 N

C1 - Dynamic Radial Rating (1 million revolutions)5 21700 lbf 96300 N

C0 - Static Radial Rating 23400 lbf 104000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)6 2930 lbf 13000 N

Factors

K - Factor7 1.91

e - ISO Factor8 0.31

Y - ISO Factor9 1.97

G1 - Heat Generation Factor (Roller-Raceway) 38.8

G2 - Heat Generation Factor (Rib-Roller End) 19.3

Cg - Geometry Factor10 0.0801

• 1 These maximum fillet radii will be cleared by the bearing corners.
• 2 These maximum fillet radii will be cleared by the bearing corners.
• 3 Negative value indicates effective center inside cone backface.
• 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
• 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
• 6 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.
• 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
• 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
• 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
• 10 Geometry constant for Lubrication Life Adjustment Factor a3l.

(verify fitment using your model or serial number)