Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4938 B/SPW33

NNU 4938 B/SPW33

Dimensions

d		190	mm
D		260	mm
B		69	mm
D₁		236	mm
F		212	mm
b		8.3	mm
K		3	mm
r_1,2	min.	2	mm
s	max.	1.1	mm

Abutment dimensions

d_a	min.	200	mm
d_a	max.	209	mm
d_b	min.	215	mm
D_a	max.	250	mm
r_a	max.	2	mm
d_n		213	mm

Calculation data

Basic dynamic load rating	C	402	kN
Basic static load rating	C₀	880	kN
Fatigue load limit	P_u	90	kN
Attainable speed for grease lubrication		2800	r/min
Attainable speed for oil-air lubrication		3200	r/min
Reference grease quantity	G_ref	85	cm³
Static radial stiffness (guideline value)		5380	N/µm

Mass

Mass bearing

Model Number: NNU 4938 B/SPW33
Inner Diameter：190mm Outer Diameter：260mm Width：69mm
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:Traffic Fire Protection Equipment Security equipment,Broadcasting System,Laser Devices,medical equipment,sanitation facilities,Perfusion device,altimeter etc,transistor fittings,miscellaneous instruments,ship special,agrochemical
Similar models:GB 4938 NNCL 4938 CV NNU 4938 BK/SPW33 NNU 4938 B/SPW33 NNCF 4938 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4938B/SPW33 products，there is large inventory of SKF NNU 4938 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 4938 B/SPW33 Which SKF NNU4938B/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
17227	44.45	53.96	4.78	Seals
313189 A	559.84	920	-	Bearings, units and housings
33111T88/DB	55	95	-	Bearings, units and housings
340 VE R	333	-	-	Seals
345 VE R	338	-	-	Seals
37x50x6 HMSA10 V	37	50	6	Seals
6311-2Z/VA228	55	120	29	Bearings, units and housings
9646	24.6126	41.25	6.35	Seals
99141	31.496	39.116	11.1252	Seals
BS2-2226-2CS5/VT143	130	230	75	Bearings, units and housings
PBMF 101608 M1	10	16	8	Bearings, units and housings
YAR 212-207-2F	61.913	110	65.1	Bearings, units and housings

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Hot number： 22240 CCK/W33 22330-2CS5/VT143 23180-2CS5/VT143 54310 + U 310 5543 56425/56650 596043 AOH 3076 G PPM 202320 PSMF 455555 A51 SAF 22540 x 7.1/4 T SAFS 22216-11 TLC SAFS 22516 x 2.5/8 SAKAC 30 M SYR 1 3/4 N