Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NN 3052 K/SPW33

NN 3052 K/SPW33

Dimensions

d		260	mm
D		400	mm
B		104	mm
d₁		312.8	mm
E		364	mm
b		15.3	mm
K		7.5	mm
r_1,2	min.	4	mm
r_3,4	min.	1.5	mm
s	max.	5	mm

Tapered bore, taper 1:12

Abutment dimensions

Abutment diameter shaft	d_a	min.	275	mm
Abutment diameter housing	D_a	min.	367	mm
Abutment diameter housing	D_a	max.	384	mm
Oil nozzle position (not for variants with TNHA cage)	d_n		355.2	mm

Calculation data

Basic dynamic load rating	C	1020	kN
Basic static load rating	C₀	1930	kN
Fatigue load limit	P_u	183	kN
Attainable speed for grease lubrication		2000	r/min
Attainable speed for oil-air lubrication		2400	r/min
Reference grease quantity	G_ref	392	cm³
Static radial stiffness (guideline value)		5570	N/µm

Mass

Mass bearing

Model Number: NN 3052 K/SPW33
Inner Diameter：260mm Outer Diameter：400mm Width：104mm
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：2026-07-25
Application:Medical printer,surgical instruments,food / grain / food equipment,EEG,textile machinery,Machine Tool Accessories,Antenna Industry,storage shelves,intermediate,tobacco machinery,other processing
Similar models:SAF 23052 KATLC x 9.7/16 305262 D BD-C 3052 K-OH 3052 H SAF 23052 KAT x 9.1/2 305272 D BD-23052-2CS5K/VT143-OH 3052 HE SNP 3052x9.7/16 305256 D SNL 3052 ATURA 305264 D
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Model No. Inner Diameter Outer Diameter Width Type

32956T170/DB
6212 NR
FYRP 2 7/16-3
SAF 22616 x 2.5/8 T
SNL 524 TURU

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Model No.	Inner Diameter	Outer Diameter	Width	Type
32956T170/DB
6212 NR
FYRP 2 7/16-3
SAF 22616 x 2.5/8 T
SNL 524 TURU