Bearing NKS55 (AST)

Needle Roller Bearings, Precision - Metric Series NKS55

Bearing number : NKS55

Size (mm) : 55x72x22

Brand : AST

Bore Diameter (mm) : 55

Outer Diameter (mm) : 72

Width (mm) : 22

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Single Row, Heavy Duty

Outer Dia (D) - 72.0000

Width (B) - 22.0000

Dynamic Load Rating (Cr) - 45,000

Static Load Rating (Cor) - 74,000

Max Speed (Oil) (X1000 RPM) - 7,500

Shaft (Fw) - 55.000

Weight (g) - 221.00

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: