NNU4948 NSK Double row cylindrical roller bearings
Brand Name:NSK
Model Number:NNU4948
Series:752000
Cone Part Number:EE752305
Design Units:Imperial
Cage Type:Pin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:961000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:249000 lbf
d:30.5000 in
B - Cone Width:3.1875 in
PDF NNU4948

Product Details

Series752000
Cone Part NumberEE752305
Design UnitsImperial
Cage TypePin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1961000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2249000 lbf
d30.5000 in
B - Cone Width3.1875 in
R - Cone Backface To Clear Radius30.25 in
da - Cone Frontface Backing Diameter31.42 in
db - Cone Backface Backing Diameter31.89 in
Ab - Cage-Cone Frontface Clearance0.51 in
Aa - Cage-Cone Backface Clearance0.47 in
a - Effective Center Location42.5 in
C90 - Dynamic Radial Rating (90 million revolutions)5143000 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6552000 lbf
C0 - Static Radial Rating1240000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)798400 lbf
K - Factor81.45
G1 - Heat Generation Factor (Roller-Raceway)12500
G2 - Heat Generation Factor (Rib-Roller End)1880.8
Cg - Geometry Factor0.312
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Company Profile

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