Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NN 3056 K/SPW33

NN 3056 K/SPW33

Dimensions

d		280	mm
D		420	mm
B		106	mm
d₁		332.8	mm
E		384	mm
b		15.3	mm
K		7.5	mm
r_1,2	min.	4	mm
r_3,4	min.	1.5	mm
s	max.	5	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	295	mm
D_a	min.	387	mm
D_a	max.	404	mm
d_n		375.3	mm

Calculation data

Basic dynamic load rating	C	1080	kN
Basic static load rating	C₀	2080	kN
Fatigue load limit	P_u	196	kN
Attainable speed for grease lubrication		1900	r/min
Attainable speed for oil-air lubrication		2200	r/min
Reference grease quantity	G_ref	420	cm³
Static radial stiffness (guideline value)		6010	N/µm

Mass

Mass bearing

47.5

Model Number: NN 3056 K/SPW33
Inner Diameter：280mm Outer Diameter：420mm Width：106mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Cylindrical roller bearings Cylindrical roller bearings, double row, super-precision
Details： Cylindrical roller bearings, double row, super-precision
Update date：2021-06-06
Application:storage shelves,packing equipment,Medium and large motor,education model Instruments,Roller mill,Chromatography Products,Industrial,vertical processing,granulator,forklift industry,DC generators
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