NNU 4956 BK/SPW33 - Super Precision Cylindrical Roller Bearings

model	NNU 4956 BK/SPW33
Metering system	Metric system
Roller Bearing Type	Cylindrical
Aperture type	conical hole, taper1:12
Load Direction	Radial force and axial force
Structure	Double row
Seal Type	Open
Inside Diameter	280 mm
Inner Diameter Tolerance	0 to +0.035mm
Outer Diameter	380 mm
Outer Diameter Tolerance	-0.020mm to 0
Width	100 mm
Width Tolerance	-0.35mm to 0
Outer ring shoulder diameter	345.6 mm
Raceway Diameter Inner Ring	312 mm
Annular lubrication groove outer ring width（b1）	13.9 mm
Diameter Lubrication Hole (outer Ring) (K)	3 mm
Outer ring chamfer size(r1,2)(min)	2.1 mm
Inner ring chamfer size (r3 4) (min)	1.1 mm
Allowable Axial Displacement (Max)	4.5 mm
Ferrule Material	51200 Chrome steel
Roller material	51200 Chrome steel
Dynamic Radial Load	765 kN
Static Radial Load	1800 kN
Max Speed(X1000 rpm)	2
Lubricant	Grease、Engine Oil
Temperature Range	-30° to 110 °C
RoHS Standard	Conform
REACH Standard	Conform
Weight	32.5 kg

Information