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Boundary Dimensions
d 12 mm Bore diameter
D 37 mm Outside diameter
B 12 mm Width
r (min.) 1 mm Chamfer dimension
r1 (min.) 0.6 mm Chamfer dimension
Basic Load Ratings
Cr 9750 N Basic dynamic load rating
C0r 4200 N Basic static load rating
Speeds 
Grease 13000 min-1 Grease lubrication
Oil (Oil-bath) 18000 min-1 Oil-bath lubrication
Dimensions
a 16.3 mm Effective load center
Abutment and Fillet Dimensions
da (min.) 18 mm Diameter of shaft abutment
Da (max.) 31 mm Diameter of housing abutment
ra (max.) 1 mm Radius of shaft or housing fillet
Mass
(approx.) 0.062 kg
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Properties
Types 73 series
Contact angle B: 40°
Cage W: Pressed steel cage

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