Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NN 3056 K/SPW33

NN 3056 K/SPW33

Dimensions

d		280	mm
D		420	mm
B		106	mm
d₁		332.8	mm
E		384	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

d_a	min.	295	mm
D_a	min.	387	mm
D_a	max.	404	mm
d_n		375.3	mm

Calculation data

Basic dynamic load rating	C	1080	kN
Basic static load rating	C₀	2080	kN
Fatigue load limit	P_u	196	kN
Attainable speed for grease lubrication		1900	r/min
Attainable speed for oil-air lubrication		2200	r/min
Reference grease quantity	G_ref	420	cm³
Static radial stiffness (guideline value)		6010	N/µm

Mass

Mass bearing

47.5

Model Number: NN 3056 K/SPW33
Inner Diameter：280mm Outer Diameter：420mm Width：106mm
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：2026-06-25
Application:Medium and large motor,wall industry,molding machine,stamping die,enzyme,hydraulic connector,Machine tools,security equipment,Vacuum generator,surgical instruments,altimeter etc
Similar models:SAF 23056 KATLC x 10.7/16 SAFS 23056 KATLC x 10.1/2 SSAFS 23056 KAT x 10.7/16 SSAFS 23056 KATLC x 10.7/16 SAFS 23056 KAT x 10.7/16 SNL 3056 ATURT SSAFS 23056 KA x 10.7/16 SNL 3056 SAF 23056 KAT x 9.15/16 SNLN 3056
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Model No. Inner Diameter Outer Diameter Width Type

30x47x7 HMSA10 V
6205/HR11TN
LR 25x30x38.5
SSAFS 23034 KAT x 6
TU 50 FM

Purchase the SKF NN 3056 K/SPW33 Please fill in the following

Hot number： 32236 38x58x8 CRW1 V 6248 M 7013 CB/P4A 71912 ACE/HCP4A 80x115x12 HMS5 RG 99875 FYJ 25 TF OKBS 61 PRMF 303430 S71906 ACD/HCP4A SAF 22518 x 3.1/4 TLC SIA 40 TXE-2LS SNW 122x3.11/16 W 627 XR

Model No.	Inner Diameter	Outer Diameter	Width	Type
30x47x7 HMSA10 V
6205/HR11TN
LR 25x30x38.5
SSAFS 23034 KAT x 6
TU 50 FM