NNU4138 TIMKEN Double row cylindrical roller bearings
Brand Name:TIMKEN
Model Number:NNU4138
Series:28000
Cone Part Number:28150
Cup Part Number:28300
Design Units:Imperial
Bearing Weight:0.4 Kg
Cage Type:Stamped Steel
d:38.1 mm
D:76.2 mm

Product Details

Series28000
Cone Part Number28150
Cup Part Number28300
Design UnitsImperial
Bearing Weight0.4 Kg
Cage TypeStamped Steel
d38.1 mm
D76.2 mm
B - Cone Width20.940 mm
C - Cup Width15.507 mm
B20.638 mm
R - Cone Backface To Clear Radius11.520 mm
r - Cup Backface To Clear Radius21.27 mm
da - Cone Frontface Backing Diameter43.43 mm
db - Cone Backface Backing Diameter45.47 mm
Da - Cup Frontface Backing Diameter71.88 mm
Db - Cup Backface Backing Diameter68.07 mm
Ab - Cage-Cone Frontface Clearance1.8 mm
Aa - Cage-Cone Backface Clearance1.5 mm
a - Effective Center Location3-4.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)44390 lbf
C1 - Dynamic Radial Rating (1 million revolutions)516900 lbf
C0 - Static Radial Rating15500 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)63020 lbf
K - Factor71.45
e - ISO Factor80.4
Y - ISO Factor91.49
G1 - Heat Generation Factor (Roller-Raceway)20.7
G2 - Heat Generation Factor (Rib-Roller End)12.5
Cg - Geometry Factor0.0709
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Company Profile

COOPER BEARING LIMITED
Phone +1-785-435-3678
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