Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row cylindrical roller bearings -- Cylindrical roller bearings, double row SKF 314990 A

314990 A

Design

Design variant/feature

NNU.4/C4W33WI

Dimensions

d		500	mm
D		680	mm
B		225	mm
D₁	≈	622	mm
F		550	mm
b		22.3	mm
K		12	mm
r_1,2	min.	2	mm
r_3,4	min.	6	mm
s	max.	3.9	mm

Abutment dimensions

d_a	min.	520	mm
d_a	max.	543	mm
d_b	min.	555	mm
D_a	max.	670	mm
r_a	max.	1.5	mm
r_b	max.	2	mm

Calculation data

Basic dynamic load rating	C	4130	kN
Basic static load rating	C₀	11000	kN
Fatigue load limit	P_u	880	kN
Reference speed		600	r/min
Limiting speed		900	r/min
Calculation factor	k_r	0.31

Mass

Mass bearing

250

Model Number: 314990 A
Inner Diameter：500mm Outer Diameter：680mm Width：225mm
Reference speed:900 r/min Limiting speed:600 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Double row cylindrical roller bearings
Details： Double row cylindrical roller bearings Cylindrical roller bearings, double row
Update date：2025-12-09
Application:Special Equipment,flow control valve,Generator,medical treatment,Rolling mill gear box,metallurgy,Broadcasting System,Spectrum Products,medical equipment,labor insurance,preservation equipment
Similar models:314990 A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1060 VRME R	1008	-	-	Seals
28841	73.025	110.01	11.13	Seals
332240 A	343.052	457.098	-	Bearings, units and housings
61928	140	190	24	Bearings, units and housings
71909 ACD/P4A	45	68	12	Bearings, units and housings
71956 ACD/HCP4A	280	380	46	Bearings, units and housings
D/W RW1-4 R	1.984	6.35	3.175	Bearings, units and housings
NCF 28/560 V	560	680	72	Bearings, units and housings
P 47 R-17 FM	17	-	-	Bearings, units and housings
RNAO 70x90x30	70	90	30	Bearings, units and housings
S7020 CE/HCP4A	100	150	24	Bearings, units and housings
SYE 2 3/4 N	69.85	-	-	Bearings, units and housings

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