Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4940 BK/SPW33

NNU 4940 BK/SPW33

Dimensions

d		200	mm
D		280	mm
B		80	mm
D₁		252.2	mm
F		225	mm
b		11.1	mm
K		3	mm
r_1,2	min.	2.1	mm
r_3,4	min.	1.1	mm
s	max.	3.7	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	211	mm
d_a	max.	222	mm
D_a	max.	269	mm
d_n		227	mm

Calculation data

Basic dynamic load rating	C	484	kN
Basic static load rating	C₀	1040	kN
Fatigue load limit	P_u	106	kN
Attainable speed for grease lubrication		2600	r/min
Attainable speed for oil-air lubrication		3000	r/min
Reference grease quantity	G_ref	117	cm³
Static radial stiffness (guideline value)		5480	N/µm

Mass

Mass bearing

Model Number: NNU 4940 BK/SPW33
Inner Diameter：200mm Outer Diameter：280mm Width：80mm
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：2026-04-16
Application:impression material,journal lathe,Machine Tool Accessories,industrial skin care,marine analysis,shoe-making machinery,Hydraulic Equipment,tobacco machinery,Switch,Dental Drill etc,metallurgy
Similar models:NNC 4940 CV GB 4940 NNCF 4940 CV NNU 4940 BK/SPW33 NNCL 4940 CV NNU 4940 B/SPW33
BEARING POWER International Trading Co.,Ltd. specialize in NNU4940BK/SPW33 products，there is large inventory of SKF NNU 4940 BK/SPW33 Cylindrical roller bearings, double row, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the NNU 4940 BK/SPW33 Which SKF NNU4940BK/SPW33 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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WS 81220	100		11.5	Bearings, units and housings
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