NX20 Needle roller / thrust rolling bearings
NX20 Needle roller / thrust rolling bearings detail Specifications:
Material : 52100 Chrome Steel
Construction : single direction axial component , for oil lubrication
Seal Type : open type
Recommended inner ring : IR17X20X16
Suitable snap rings : WR30
Limiting Speed : 4500 rpm
Weight : 0.068 kg
Main Dimensions:
Diameter under rollers (Fw) : 20 mm
Outside diameter (D) : 30 mm
Width(C) : 28 mm
Tolerance of Width : - 0.25 mm to 0 mm
Distance side face to lubrication hole (C1) : 8.0 mm
Bore diameter of thrust part (dw) : 20 mm
Chamfer dimension (r) min. : 0.3 mm
Dynamic load ratings radial (Cr) : 13.00 KN
Static load ratings radial (Cor) : 17.50 KN
Dynamic load ratings axial (Cr) : 7.00 KN
Static load ratings axial (Cor) : 14.70 KN
ABUTMENT DIMENSIONS
Diameter of shaft abutment(da) min. : 25 mm
Diameter of housing abutment (Da) max. : 28 mm
Distance side face to back face of snap ring (Ca) : 12.2 mm
Radius of fillet (ra) max . : 0.3 mm
Bore diameter of associated inner ring (di) : 17 mm
Diameter of inner ring raceway (F) : 20 mm
Width of associated inner ring (Bi) : 16 mm
