NN4976K NSK Double row cylindrical roller bearings
Brand Name:NSK
Model Number:NN4976K
Series:HM252300
Cone Part Number:HM252344
Cup Part Number:HM252310
Design Units:Imperial
Bearing Weight:44.30 Kg
Cage Type:Pin-Type
d:254.000 mm
D:422.275 mm

Product Details

SeriesHM252300
Cone Part NumberHM252344
Cup Part NumberHM252310
Design UnitsImperial
Bearing Weight44.30 Kg
Cage TypePin-Type
d254.000 mm
D422.275 mm
B - Cone Width79.771 mm
C - Cup Width66.675 mm
B86.121 mm
R - Cone Backface To Clear Radius16.860 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter280.92 mm
db - Cone Backface Backing Diameter287.02 mm
Da - Cup Frontface Backing Diameter401.07 mm
Db - Cup Backface Backing Diameter391.92 mm
Ab - Cage-Cone Frontface Clearance7.4 mm
Aa - Cage-Cone Backface Clearance8.9 mm
a - Effective Center Location3-9.4 mm
C90 - Dynamic Radial Rating (90 million revolutions)490100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5348000 lbf
C0 - Static Radial Rating475000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)651300 lbf
K - Factor71.76
e - ISO Factor80.33
Y - ISO Factor91.8
G1 - Heat Generation Factor (Roller-Raceway)1550
G2 - Heat Generation Factor (Rib-Roller End)152
Cg - Geometry Factor0.15
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Company Profile

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