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

NNU 4944 B/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
s	max.	3.7	mm

Abutment dimensions

d_a	min.	231	mm
d_a	max.	242	mm
d_b	min.	249	mm
D_a	max.	289	mm
r_a	max.	2	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 B/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：2026-06-26
Application:Industrial,motorcycle,car shock absorber,medical equipment,ventilation heating equipment,inorganic chemical,medical equipment,Rolling mill,engineering machinery,stamping die,container finishing
Similar models:NNCF 4944 CV NNCL 4944 CV GB 4944 NNC 4944 CV NNU 4944 BK/SPW33 NNU 4944 B/SPW33
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Model No. Inner Diameter Outer Diameter Width Type

26x42x7 HMS5 RG
6556
LS 110145
RN-2x11.8 BF/G2
SSAFS 23056 KATLC x 10.7/16

Purchase the SKF NNU 4944 B/SPW33 Please fill in the following

Hot number： 20x35x10 HMS5 RG 402504 55x80x8 HMSA10 V 6211/HR22Q2 6312-Z 63700 71914 CB/HCP4AL 728 ACD/HCP4A 7302 BEP 87271 BT4B 328838 BG/HA1VA902 FYT 1.3/4 TF/VA201 IR 22x26x16 QJ 312 MA RN-2x11.8 BF/G2

Model No.	Inner Diameter	Outer Diameter	Width	Type
26x42x7 HMS5 RG
6556
LS 110145
RN-2x11.8 BF/G2
SSAFS 23056 KATLC x 10.7/16