NN 3056 K/SPW33 - Super Precision Cylindrical Roller Bearings

model	NN 3056 K/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	420 mm
Outer Diameter Tolerance	-0.023mm to 0
Width	106 mm
Width Tolerance	-0.35mm to 0
Annular lubrication groove outer ring width（b1）	15.3 mm
Diameter Lubrication Hole (outer Ring) (K)	7.5 mm
Outer ring chamfer size(r1,2)(min)	4 mm
Inner ring chamfer size (r3 4) (min)	1.5 mm
Allowable Axial Displacement (Max)	5 mm
Ferrule Material	51200 Chrome steel
Roller material	51200 Chrome steel
Dynamic Radial Load	1080 kN
Static Radial Load	2080 kN
Max Speed(X1000 rpm)	2
Lubricant	Grease、Engine Oil
Temperature Range	-30° to 110 °C
RoHS Standard	Conform
REACH Standard	Conform
Weight	49.2 kg

Information