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：2026-04-16
Application:ventilation fans,Cylinder Pneumatic Treatment Element,large agricultural machinery,Spectrum Products,chuck industry,Insect Capture,miscellaneous instruments,medical equipment,test strip,pressure control valve,safety testing
Similar models:314990 A
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BTM 75 ATN9/HCP4CDB	75	115	36	Bearings, units and housings
D/W R168-2ZS	6.35	9.525	3.175	Bearings, units and housings
FY 1/2 TF	12.7	-	-	Bearings, units and housings
FYC 509	-	-	-	Bearings, units and housings
KR 22 PPA	-	22	36	Bearings, units and housings
NATR 50 PPA	50	90	30	Bearings, units and housings
OKC 650	650		-

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