Home > Bearings Catalogue Online > Spherical Roller Bearings 
Bearing 21308MB (AST)
Spherical Roller Bearings 21308MB
Bearing number : 21308MB
Size (mm) : 40x90x23
Brand : AST
Bore Diameter (mm) : 40
Outer Diameter (mm) : 90
Width (mm) : 23
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - straight bore
Bore Dia (d) - 40.0000
Outer Dia (D) - 90.0000
Width (B) - 23.0000
Radius (min) (rs) - 1.500
Dynamic Load Rating (Cr) - 74,000
Static Load Rating (Cor) - 69,500
Max Speed (Grease) (X1000 RPM) - 5
Max Speed (Oil) (X1000 RPM) - 6
Weight (g) - 780.00
Material - 52100 Chrome steel, or equivalent
Inner ring guided, machined brass cage.
Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".
Basic Radial Load Factor "e" = 0.26
Basic Radial Load Factor "Y1" = 2.6
Basic Radial Load Factor "Y2" = 3.9
Basic Radial Load Factor "Y0" = 2.6
Search bearings
Bore Dia, mm
Outer Dia, mm:
Bearings Catalogue