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：2025-12-09
Application:packaging machinery,survey accessories,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,cleaners,water protection,motor,Reflective Materials Industrial fabrics,coal mill,woodworking machinery,garden machinery,packaging materials
Similar models:NNU 4944 BK/SPW33 GB 4944 NNU 4944 B/SPW33 NNC 4944 CV NNCL 4944 CV NNCF 4944 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4944B/SPW33 products，there is large inventory of SKF NNU 4944 B/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 B/SPW33 Which SKF NNU4944B/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
100x140x12 CRWA1 R	100	140	12	Seals
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24x47x8 CRW1 R	24	47	8	Seals
71928 ACD/P4A	140	190	24	Bearings, units and housings
9814	25.4	34.93	6.35	Seals
BD-C 30/600 KM-OH 30/600 H	560	870	200	Bearings, units and housings
K 81230 M	150	215		Bearings, units and housings
OKC 130	130		-
P 52 R-20 RM	20	-	-	Bearings, units and housings
QJ 1021 N2MA/C4	105	160	26	Bearings, units and housings
SYNT 40 LTS	40	-	-	Bearings, units and housings

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