Bearing RNA4872 (AST)

Needle Roller Bearings, Precision - Metric Series RNA4872

Bearing number : RNA4872

Size (mm) : 390x440x80

Brand : AST

Bore Diameter (mm) : 390

Outer Diameter (mm) : 440

Width (mm) : 80

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Single Row, Narrow

Outer Dia (D) - 440.0000

Width (B) - 80.0000

Dynamic Load Rating (Cr) - 660,000

Static Load Rating (Cor) - 2,020,000

Max Speed (Oil) (X1000 RPM) - 1,200

Shaft (Fw) - 390.000

Weight (g) - 14,800.00

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: