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Bearing NK25/20 (AST)
Needle Roller Bearings, Precision - Metric Series NK25/20
Bearing number : NK25/20
Size (mm) : 25x33x20
Brand : AST
Bore Diameter (mm) : 25
Outer Diameter (mm) : 33
Width (mm) : 20
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Single Row
Outer Dia (D) - 33.0000
Width (B) - 20.0000
Dynamic Load Rating (Cr) - 18,800
Static Load Rating (Cor) - 30,500
Max Speed (Oil) (X1000 RPM) - 17,000
Shaft (Fw) - 25.000
Weight (g) - 42.00
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.
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