Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4928 BK/SPW33

NNU 4928 BK/SPW33

Dimensions

d		140	mm
D		190	mm
B		50	mm
D₁		172	mm
F		156	mm
b		5.5	mm
K		3	mm
r_1,2	min.	1.5	mm
r_3,4	min.	1	mm
s	max.	2.2	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	147	mm
d_a	max.	154	mm
D_a	max.	182	mm
d_n		157	mm

Calculation data

Basic dynamic load rating	C	190	kN
Basic static load rating	C₀	400	kN
Fatigue load limit	P_u	41.5	kN
Attainable speed for grease lubrication		4000	r/min
Attainable speed for oil-air lubrication		4500	r/min
Reference grease quantity	G_ref	45	cm³
Static radial stiffness (guideline value)		3670	N/µm

Mass

Mass bearing

4.1

Model Number: NNU 4928 BK/SPW33
Inner Diameter：140mm Outer Diameter：190mm Width：50mm
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:Pump,sample cup,other lathe,impression material,gear grinding machine,sawing machine,Body shaping,sucker industry,Laser Cutting,medical equipment,vacuum suction cup
Similar models:NNU 4928 B/SPW33 NNC 4928 CV RNA 4928 GB 4928 NNU 4928 BK/SPW33 NNCF 4928 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4928BK/SPW33 products，there is large inventory of SKF NNU 4928 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 4928 BK/SPW33 Which SKF NNU4928BK/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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