Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4972 BK/SPW33

NNU 4972 BK/SPW33

Dimensions

d		360	mm
D		480	mm
B		118	mm
D₁		439	mm
F		399	mm
b		16.7	mm
K		9	mm
r_1,2	min.	3	mm
r_3,4	min.	1.5	mm
s	max.	5.5	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	373	mm
d_a	max.	395	mm
D_a	max.	467	mm
r_a	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	1120	kN
Basic static load rating	C₀	2800	kN
Fatigue load limit	P_u	255	kN
Attainable speed for grease lubrication		1500	r/min
Attainable speed for oil-air lubrication		1700	r/min

Mass

Mass bearing

Model Number: NNU 4972 BK/SPW33
Inner Diameter：360mm Outer Diameter：480mm Width：118mm
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:Garment Accessories,mathematical instruments,Medical equipment,sheet industry,engineering machine,industrial supplies,boring bar boring bar,medical equipment,coal,manual Tools,animal
Similar models:NNC 4972 CV NNCF 4972 CV NNCL 4972 CV NNU 4972 B/SPW33 NNU 4972 BK/SPW33
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