NNU4992 KOYO Double-row cylindrical roller bearings

Brand Name: KOYO
Model Number: NNU4992
Series: 27600
Cone Part Number: 27689
Design Units: Imperial
Cage Type: Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: 45900 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: 11900 lbf
d: 3.2813 in
B - Cone Width: 1.0000 in
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Product Details

Series 27600
Cone Part Number 27689
Design Units Imperial
Cage Type Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 45900 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 11900 lbf
d 3.2813 in
B - Cone Width 1.0000 in
R - Cone Backface To Clear Radius3 0.03 in
da - Cone Frontface Backing Diameter 3.54 in
db - Cone Backface Backing Diameter 3.54 in
Ab - Cage-Cone Frontface Clearance 0.09 in
Aa - Cage-Cone Backface Clearance 0.05 in
a - Effective Center Location4 0.02 in
C90 - Dynamic Radial Rating (90 million revolutions)5 6830 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6 26300 lbf
C0 - Static Radial Rating 39900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 4860 lbf
K - Factor8 1.4
G1 - Heat Generation Factor (Roller-Raceway) 98.2
G2 - Heat Generation Factor (Rib-Roller End) 41.8
Cg - Geometry Factor 0.120
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