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NKXR 25-Z Needle roller / thrust Ball bearings

Short Description:

Combined Needle Roller Bearings consist of a radial needle roller bearing combined with a cylindrical roller thrust bearing, Combined needle roller bearings comprise a radial needle roller bearing, which is combined with an axial bearing component. Due to the use of needle roller bearing as its thrust bearing, this type NKXR can support greater axial load than NKX.

NKXR-Z is identical to NKXR, but its thrust bearing is provided with dust-proof cover to prevent grease scattering.Furthermore, the handling characteristic is good because the dust-proof cover makes the thrust plate non-separable and integral.


Product Detail

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NKXR25-Z Needle roller / thrust Ball bearings detail Specifications:

Material : 52100 Chrome Steel

Construction : Single Row , Bearing with end cap

Limiting Speed : 6300 rpm

Weight : 0.13 kg

 

Main Dimensions:

Diameter under rollers (Fw) : 25 mm

Outer diameter (D) : 37 mm

Diameter of flange (D1) max. : 42.10 mm

Diameter of stamped steel cover (D2) max. : 43.20 mm

Width (C) : 30 mm

Width of thrust part (C1) : 11 mm

Distance side face to lubrication hole (C2) : 9.5 mm

Bore diameter of thrust part (dw) : 25 mm

Chamfer dimension(r) min. : 0.6 mm

Dynamic load ratings radial (Cr) : 18.80 KN

Static load ratings radial (Cor) : 30.50 KN

Dynamic load ratings axial (Cr) : 33.50 KN

Static load ratings axial(Cor) : 76.00 KN

 

ABUTMENT DIMENSIONS

Diameter of shaft abutment (da) min. : 37.70 mm

Radius of fillet (ra) max. : 0.60 mm

Radius of fillet(rb)max. : 0.30 mm

Bore diameter of associated inner ring (di) : 20 mm

Diameter of inner ring raceway (F) : 25 mm

Width of associated inner ring (Bi) : 20 mm

NKXR..Z DRAWING

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