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

NNU 4948 BK/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
r_3,4	min.	1.1	mm
s	max.	3.7	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	251	mm
d_a	max.	262	mm
D_a	max.	309	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 BK/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:experimental equipment,Laser Cutting,Embroidery,trolley,Processing machinery,transportation equipment,Spectrum Products,food packaging,bag machine,gear type,electromagnetic clutch
Similar models:NNC 4948 CV NNU 4948 BK/SPW33 JLM 104948 AA/910 AA NNU 4948 B/SPW33 NNCL 4948 CV GB 4948 NNCF 4948 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4948BK/SPW33 products，there is large inventory of SKF NNU 4948 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 4948 BK/SPW33 Which SKF NNU4948BK/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.

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