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Bearing NK12/12 (AST)
Needle Roller Bearings, Precision - Metric Series NK12/12
Bearing number : NK12/12
Size (mm) : 12x19x12
Brand : AST
Bore Diameter (mm) : 12
Outer Diameter (mm) : 19
Width (mm) : 12
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Single Row
Outer Dia (D) - 19.0000
Width (B) - 12.0000
Dynamic Load Rating (Cr) - 6,400
Static Load Rating (Cor) - 7,100
Max Speed (Oil) (X1000 RPM) - 25,000
Shaft (Fw) - 12.000
Weight (g) - 12.10
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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