This 30 x 47 x 17 mm (NA4906) bearing is a needle roller bearing. The NA4906 inner diameter is 30 mm, the NA4906 outer diameter is 47 mm, the NA4906 width is 17 mm.
Specs:
Inner Diameter (d): 30 mm Outer Diameter (D): 47 mm Width (B): 17 mm Bearing Model: NA4906 Material: GCR15 Bearing Steel
