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：2026-08-19
Application:spreader series,gantry processing,Rolling mill,rolling machine,metering pump,plastic blow molding,Grinding and polishing equipment,wall industry,sample cup,powder metallurgy,agrochemical
Similar models:NNU 4948 B/SPW33 JLM 104948 AA/910 AA NNCF 4948 CV NNU 4948 BK/SPW33 NNCL 4948 CV NNC 4948 CV GB 4948
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Model No. Inner Diameter Outer Diameter Width Type

AOHX 30/600
HJ 238 EC
NU 315 ECM
SAFS 23056 KA x 10.7/16
PRM 10010550

Purchase the SKF NNU 4948 B/SPW33 Please fill in the following

Hot number： 1050 VA R 21069 240/1060 CAF/W33 310x350x18 HDS2 V 29430 E 68x100x10 CRW1 R 71914 CD/P4AH1 89922 AOH 3180 G BD-C 3152 K-OH 3152 HTL FSAF 22518 x 3.1/4 TLC P 52 R-20 WF SAW 23232 SSAFS 23034 KA x 6 W 619/8

Model No.	Inner Diameter	Outer Diameter	Width	Type
AOHX 30/600
HJ 238 EC
NU 315 ECM
SAFS 23056 KA x 10.7/16
PRM 10010550