AC7251B KOYO Single-row, matched pair angular contact ball bearings

Brand Name: KOYO
Model Number: AC7251B
Series: 34000
Cone Part Number: 34274
Design Units: Imperial
Cage Type: Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: 40000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: 10400 lbf
d: 2.7540 in
B - Cone Width: 0.9060 in
PDF AC7251B

Product Details

Series 34000
Cone Part Number 34274
Design Units Imperial
Cage Type Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 40000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 10400 lbf
d 2.7540 in
B - Cone Width 0.9060 in
R - Cone Backface To Clear Radius3 0.080 in
da - Cone Frontface Backing Diameter 3.07 in
db - Cone Backface Backing Diameter 3.19 in
Ab - Cage-Cone Frontface Clearance 0.1 in
Aa - Cage-Cone Backface Clearance 0.09 in
a - Effective Center Location4 0.06 in
C90 - Dynamic Radial Rating (90 million revolutions)5 5960 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6 23000 lbf
C0 - Static Radial Rating 30600 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 4600 lbf
K - Factor8 1.3
G1 - Heat Generation Factor (Roller-Raceway) 69.3
G2 - Heat Generation Factor (Rib-Roller End) 27
Cg - Geometry Factor 0.109
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Phone 753-298-7732
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