Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4948 B/SPW33

NNU 4948 B/SPW33

Dimensions

d		240	mm
D		320	mm
B		80	mm
D₁		292.2	mm
F		265.3	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.	251	mm
d_a	max.	262	mm
d_b	min.	269	mm
D_a	max.	309	mm
r_a	max.	2	mm
d_n		267	mm

Calculation data

Basic dynamic load rating	C	528	kN
Basic static load rating	C₀	1220	kN
Fatigue load limit	P_u	118	kN
Attainable speed for grease lubrication		2200	r/min
Attainable speed for oil-air lubrication		2600	r/min
Reference grease quantity	G_ref	171	cm³
Static radial stiffness (guideline value)		6340	N/µm

Mass

Mass bearing

17.5

Model Number: NNU 4948 B/SPW33
Inner Diameter：240mm Outer Diameter：320mm 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:Machine tool accessories,Gripper Swing,scientific instruments,Insect Capture,Control,tube,chemical,ventilation fans,Pneumatic Control Valves,aerial work equipment,DC generators
Similar models:GB 4948 NNCL 4948 CV NNCF 4948 CV NNU 4948 BK/SPW33 NNU 4948 B/SPW33 NNC 4948 CV JLM 104948 AA/910 AA
BEARING POWER International Trading Co.,Ltd. specialize in NNU4948B/SPW33 products，there is large inventory of SKF NNU 4948 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 4948 B/SPW33 Which SKF NNU4948B/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
22336	57.15	76.12	11.13	Seals
22338 CC/W33	190	400	132	Bearings, units and housings
22224 EK	120	215	58	Bearings, units and housings
32934	170	230	38	Bearings, units and housings
471301	1240	-	-	Seals
6312-2RSH	60	130	31	Bearings, units and housings
770 VE R	743	-	-	Seals
FYRP 2 3/16-3	55.5625	-	-	Bearings, units and housings
FYR 3 1/2	88.9	-	-	Bearings, units and housings
MVR2-30	30	48	-	Seals
N 1020 KTNHA/HC5SP	100	150	24	Bearings, units and housings
TUWK 3/4 LTHR	19.05	-	-	Bearings, units and housings

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