Bearing RNA4840 (AST)

Needle Roller Bearings, Precision - Metric Series RNA4840

Bearing number : RNA4840

Size (mm) : 220x250x50

Brand : AST

Bore Diameter (mm) : 220

Outer Diameter (mm) : 250

Width (mm) : 50

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Single Row, Narrow

Outer Dia (D) - 250.0000

Width (B) - 50.0000

Dynamic Load Rating (Cr) - 230,000

Static Load Rating (Cor) - 720,000

Max Speed (Oil) (X1000 RPM) - 2,100

Shaft (Fw) - 220.000

Weight (g) - 33,501.00

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: