NK47/20  precision needle roller bearing drawings
  1. The bearing must be used with a hardened inner ring, or a hardened shaft.
  2. Some sizes are available with either a single seal or two seals.

NK47_20 Metric Series Needle Roller Bearing

Model: NK47/20

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Product Details

Bearing Type Single Row
Outer Dia (D) 57.000 mm
Width (B) 20.000 mm
Dynamic Load Rating (Cr) 28,500 N
Static Load Rating (Cor) 56,000 N
Max Speed (Oil) 9,500 rpm
Shaft (Fw) 47.00 mm
Weight (g) 94.50 grams
Material 52100 Chrome steel, or equivalent