NA4908 Needle roller bearings with machined rings, with an inner ring
NA4908 Needle roller bearings with machined rings, with an inner ring detail Specifications:
Material : 52100 Chrome Steel
Type : single row
Limiting Speed : 9500 rpm
Weight : 0.23 kg
Main Dimensions:
Bore Diameter (d) : 40 mm
Raceway diameter inner ring (F) : 48 mm
Outer diameter (D) : 62 mm
Width (B) : 22 mm
Chamfer dimension outer ring (r) min. : 0.6 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other (S) : 1.0 mm
Dynamic load ratings (Cr) : 48.5 KN
Static load ratings (Cor) : 67 KN
ABUTMENT DIMENSIONS
Smallest permissible abutment diameter shaft, bearings with flanges (da) min. : 44 mm
Abutment diameter housing (with flanges) (Da) max. : 58 mm
Fillet radius (ra) max. : 0.6 mm












