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    TIMKEN LM12749-LM12711 tapered roller bearings TIMKEN LM12749-LM12711 tapered roller bearings
    Inside Diameter: 21.986 mm
    Outside Diameter: 45.974 mm
    Width: 15.494 mm
    Basic dynamic load rating: 38.6 kN
    Basic static load rating: 35.3 kN


model LM12749-LM12711
Cone Part Number LM12749
Cup Part Number LM12711
Design Units Imperial
Cage Type Stamped Steel
Bearing Weight 0.100 Kg
0.30 lb
Dimensions
d - Bore 21.986 mm
0.8656 in
D - Cup Outer Diameter 45.974 mm
1.8100 in
B - Cone Width 16.637 mm
0.6550 in
C - Cup Width 12.065 mm
0.4750 in
T - Bearing Width 15.494 mm
0.6100 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius 1.270 mm
0.050 in
r - Cup Backface "To Clear" Radius 1.27 mm
0.050 in
da - Cone Frontface Backing Diameter 25.91 mm
1.02 in
db - Cone Backface Backing Diameter 27.43 mm
1.08 in
Da - Cup Frontface Backing Diameter 42.93 mm
1.69 in
Db - Cup Backface Backing Diameter 39.88 mm
1.57 in
Ab - Cage-Cone Frontface Clearance 1 mm
0.04 in
Aa - Cage-Cone Backface Clearance 0.3 mm
0.01 in
a - Effective Center Location -5.30 mm
-0.21 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions) 10000 N
2250 lbf
C1 - Dynamic Radial Rating (1 million revolutions) 38600 N
8680 lbf
C0 - Static Radial Rating 35300 N
7930 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions) 5250 N
1180 lbf
Factors
K - Factor 1.91
e - ISO Factor 0.31
Y - ISO Factor 1.96
G1 - Heat Generation Factor (Roller-Raceway) 8.2
G2 - Heat Generation Factor (Rib-Roller End) 6.98
Cg - Geometry Factor 0.048

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