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Bearing NK8/12TN (AST)
Needle Roller Bearings, Precision - Metric Series NK8/12TN
Bearing number : NK8/12TN
Size (mm) : 8x15x12
Brand : AST
Bore Diameter (mm) : 8
Outer Diameter (mm) : 15
Width (mm) : 12
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Single Row
Outer Dia (D) - 15.0000
Width (B) - 12.0000
Dynamic Load Rating (Cr) - 3,950
Static Load Rating (Cor) - 4,100
Max Speed (Oil) (X1000 RPM) - 29,000
Shaft (Fw) - 8.000
Weight (g) - 8.70
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.
The roller retainer is made from molded plastic.
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