SB7255 KOYO Single-row deep groove ball bearings

Brand Name:KOYO
Model Number:SB7255
Series:755
Cone Part Number:766
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:128000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:33200 lbf
d:3.5000 in
B - Cone Width:1.9000 in
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Product Details

Series755
Cone Part Number766
Design UnitsImperial
Cage TypeStamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1128000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)233200 lbf
d3.5000 in
B - Cone Width1.9000 in
R - Cone Backface To Clear Radius30.280 in
da - Cone Frontface Backing Diameter3.9 in
db - Cone Backface Backing Diameter4.45 in
Ab - Cage-Cone Frontface Clearance0.07 in
Aa - Cage-Cone Backface Clearance0.11 in
a - Effective Center Location4-0.47 in
C90 - Dynamic Radial Rating (90 million revolutions)519100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)673600 lbf
C0 - Static Radial Rating99200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)711100 lbf
K - Factor81.71
G1 - Heat Generation Factor (Roller-Raceway)177.2
G2 - Heat Generation Factor (Rib-Roller End)29.4
Cg - Geometry Factor0.0945
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