Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4930 BK/SPW33

NNU 4930 BK/SPW33

Dimensions

d		150	mm
D		210	mm
B		60	mm
D₁		190.9	mm
F		168.5	mm
b		5.5	mm
K		3	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
s	max.	2	mm

Tapered bore, taper 1:12

Abutment dimensions

d_a	min.	160	mm
d_a	max.	166	mm
D_a	max.	200	mm
d_n		169.9	mm

Calculation data

Basic dynamic load rating	C	330	kN
Basic static load rating	C₀	655	kN
Fatigue load limit	P_u	71	kN
Attainable speed for grease lubrication		3800	r/min
Attainable speed for oil-air lubrication		4300	r/min
Reference grease quantity	G_ref	57	cm³
Static radial stiffness (guideline value)		4160	N/µm

Mass

Mass bearing

6.25

Model Number: NNU 4930 BK/SPW33
Inner Diameter：150mm Outer Diameter：210mm Width：60mm
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:machine lathe,packaging materials,Spectrum Products,chuck industry,chamfering machine etc,rock drilling machinery,medical treatment,training beds etc,intermediate,medical equipment,Industrial Electromechanical
Similar models:NNU 4930 B/SPW33 NNU 4930 BK/SPW33 NNCF 4930 CV GB 4930 NNCL 4930 CV
BEARING POWER International Trading Co.,Ltd. specialize in NNU4930BK/SPW33 products，there is large inventory of SKF NNU 4930 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 4930 BK/SPW33 Which SKF NNU4930BK/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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