Bearing NK40/20 (AST)

Needle Roller Bearings, Precision - Metric Series NK40/20

Bearing number : NK40/20

Size (mm) : 40x50x20

Brand : AST

Bore Diameter (mm) : 40

Outer Diameter (mm) : 50

Width (mm) : 20

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Single Row

Outer Dia (D) - 50.0000

Width (B) - 20.0000

Dynamic Load Rating (Cr) - 26,000

Static Load Rating (Cor) - 47,000

Max Speed (Oil) (X1000 RPM) - 11,000

Shaft (Fw) - 40.000

Weight (g) - 82.70

Material - 52100 Chrome steel, or equivalent

The bearing must be used with a hardened inner ring, or a hardened shaft.

Some sizes are available with either a single seal or two seals.

Designation

Bore Dia, mm

Outer Dia, mm: