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：2025-12-09
Application:Anesthetic Equipment,Machine Tool Accessories,universal category,Power equipment,Broadcasting System,Medical equipment,printing machinery,gas turbine,Flame Cutting,die casting mold,DC generators
Similar models:SNL 3056 ATURA 23056 CC/W33 BD-23056 CCK/W33-OH 3056 H 305608 B SSAFS 23056 KATLC x 9.15/16 SNLN 3056 C 3056 305608 SNP 3056x9.15/16 SAFS 23056 KA x 10.7/16
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12x30x7 HMSA10 V	12	30	7	Seals
160x190x15 HMSA10 V	160	190	15	Seals
BD-23144-2CS5K/VT143-OH 3144 HTL	200	370	120	Bearings, units and housings
BD-24196 ECAK30/W33-AOH 24196	460	790	308	Bearings, units and housings
400251	22	-	-	Seals
420000	1810	-	-	Seals
42592	107.95	149.25	12.7	Seals
471041	990	-	-	Seals
C 4192 K30MB	460	760	300	Bearings, units and housings
IR 25x30x26.5	25	30	26.5	Bearings, units and housings
MVR2-70	70	92	-	Seals
SAFS 23028 KATLC x 4.7/8	123.825	-	-	Bearings, units and housings

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Hot number： 11130 420x464x20 HDS2 R 51104 V/HR11T1 627-RSL 718/1000 AMB 99296 D/W R12-2RS1 HM 3164 IR 9x12x16 NUP 217 ECML NJ 2309 ECP NU 324 ECML SAF 22507 x 1.1/8 SE 508-607 Z 015 F