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Boston Gear (Altra) FB57-7 Plain Sleeve & Flanged BearingsCode system

R - Cone Backface To Clear Radius3: 0.25 in B - Cone Width: 3.0000 in G1 - Heat Generation Factor (Roller-Raceway): 5730
Cg - Geometry Factor: 0.26 Ab - Cage-Cone Frontface Clearance: 0.15 in C1 - Dynamic Radial Rating (1 million revolutions)6: 315000 lbf
d: 22.0000 in G2 - Heat Generation Factor (Rib-Roller End): 782 Series: 542000
db - Cone Backface Backing Diameter: 23.39 in

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