Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4944 BK/SPW33

NNU 4944 BK/SPW33

Dimensions

d		220	mm
D		300	mm
B		80	mm
D₁		272.2	mm
F		245	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.	231	mm
d_a	max.	242	mm
D_a	max.	289	mm
d_n		247	mm

Calculation data

Basic dynamic load rating	C	512	kN
Basic static load rating	C₀	1140	kN
Fatigue load limit	P_u	114	kN
Attainable speed for grease lubrication		2400	r/min
Attainable speed for oil-air lubrication		2800	r/min
Reference grease quantity	G_ref	150	cm³
Static radial stiffness (guideline value)		5990	N/µm

Mass

Mass bearing

16.5

Model Number: NNU 4944 BK/SPW33
Inner Diameter：220mm Outer Diameter：300mm 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：2025-12-09
Application:office outdoor camping equipment,defogging and degreasing,die casting mold,chuck industry,medical equipment,instrumentation instrument,Cylinder Standard,chemical instruments,pneumatic,chemical,electric hydraulic lifting platform
Similar models:NNCF 4944 CV NNU 4944 BK/SPW33 NNC 4944 CV GB 4944 NNU 4944 B/SPW33 NNCL 4944 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4944BK/SPW33 products，there is large inventory of SKF NNU 4944 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 4944 BK/SPW33 Which SKF NNU4944BK/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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