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

NNU 4938 BK/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
r_3,4	min.	1	mm
s	max.	1.1	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	200	mm
d_a	max.	209	mm
D_a	max.	250	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 BK/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：2025-12-09
Application:Control,respirator,manual Tools,quality inspection equipment,vertical sawing machine,knitted fabrics,metallurgical mold,test strip,Logistics Equipment,meat products machine,walking Food processing machinery and equipment
Similar models:NNU 4938 BK/SPW33 NNU 4938 B/SPW33 GB 4938 NNCL 4938 CV NNCF 4938 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4938BK/SPW33 products，there is large inventory of SKF NNU 4938 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 4938 BK/SPW33 Which SKF NNU4938BK/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
23703	60.325	85.09	9.53	Seals
24934	63.5	85.62	9.53	Seals
6309	45	100	25	Bearings, units and housings
FSAF 22515 x 2.1/2	63.5	-	-	Bearings, units and housings
GEH 90 TXA-2LS	90	150	85	Bearings, units and housings
IR 5x8x12	5	8	12	Bearings, units and housings
KMD 8	22	-	40	Bearings, units and housings
NK 25/16	25	33	16	Bearings, units and housings
NNU 49/600 BK/SPW33X	600	800	200	Bearings, units and housings
SAF 1622 TLC	100.0125	-	-	Bearings, units and housings
SAFS 22530 x 5.5/16 T	134.9375	-	-	Bearings, units and housings
SNL 519-616	68.2625	-	-	Bearings, units and housings

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