Home > Bearings Catalogue Online > Cylindrical Roller Bearings 
Bearing N309 (AST)
Cylindrical Roller Bearings N309
Bearing number : N309
Size (mm) : 45x100x25
Brand : AST
Bore Diameter (mm) : 45
Outer Diameter (mm) : 100
Width (mm) : 25
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - N
Bore Dia (d) - 45.0000
Outer Dia (D) - 100.0000
Width (B) - 25.0000
Radius (min) (rs) - 1.500
Dynamic Load Rating (Cr) - 71,200
Static Load Rating (Cor) - 67,800
Max Speed (Grease) (X1000 RPM) - 6
Max Speed (Oil) (X1000 RPM) - 7
Max. Shaft Shoulder Dia. Inner (Li) - 58.5
Min. Housing Shoulder Dia., Outer (Lo) - 86.5
Weight (g) - 849.00
Precision - RBEC 1
Standard Clearance - C0
Material - 52100 Chrome steel, or equivalent
Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".
Suffix definitions are listed in the Nomenclature Technical document.
This bearing is also available with a retaining ring groove in the outer race, and it can be supplied with the ring (suffix NR) or without the ring (suffix N). Please see the Technical Information Sheet for the groove and ring dimensions.
Search bearings
Bore Dia, mm
Outer Dia, mm:
Bearings Catalogue