NNU4968 KOYO Double-row cylindrical roller bearings

Brand Name: KOYO
Model Number: NNU4968
Cone Part Number: LL319349
Design Units: Imperial
Cage Type: Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: 24800 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: 6440 lbf
d: 3.7500 in
B - Cone Width: 0.5938 in
R - Cone Backface To Clear Radius3: 0.06 in
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Product Details

Cone Part Number LL319349
Design Units Imperial
Cage Type Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 24800 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 6440 lbf
d 3.7500 in
B - Cone Width 0.5938 in
R - Cone Backface To Clear Radius3 0.06 in
da - Cone Frontface Backing Diameter 3.94 in
db - Cone Backface Backing Diameter 4.06 in
Ab - Cage-Cone Frontface Clearance 0.12 in
Aa - Cage-Cone Backface Clearance 0.01 in
a - Effective Center Location4 0.17 in
C90 - Dynamic Radial Rating (90 million revolutions)5 3700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6 14300 lbf
C0 - Static Radial Rating 22400 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 2230 lbf
K - Factor8 1.66
G1 - Heat Generation Factor (Roller-Raceway) 86.3
G2 - Heat Generation Factor (Rib-Roller End) 88.3
Cg - Geometry Factor 0.107
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