Bearings, units and housings -- Ball bearings -- Angular contact ball bearings -- Four-point contact ball bearings -- Angular contact ball bearings, four-point contact ball bearings SKF QJ 344 N2/309829

QJ 344 N2/309829

Dimensions

d		220	mm
D		460	mm
B		88	mm
d₁	≈	308	mm
D₁	≈	372	mm
a		238	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	5	mm

Abutment dimensions

d_a	min.	242	mm
D_a	max.	438	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	904	kN
Basic static load rating	C₀	1660	kN
Fatigue load limit	P_u	38	kN
Limiting speed		2400	r/min
Calculation factor	e	0.95
Calculation factor	X	0.6
Calculation factor	Y₀	0.58
Calculation factor	Y₁	0.66
Calculation factor	Y₂	1.07

Mass

Mass bearing

77.2

Model Number: QJ 344 N2/309829
Inner Diameter：220mm Outer Diameter：460mm Width：88mm
Reference speed:2400 r/min Limiting speed:-
Type：Bearings, units and housings Ball bearings Angular contact ball bearings Four-point contact ball bearings
Details： Four-point contact ball bearings Angular contact ball bearings, four-point contact ball bearings
Update date：2025-12-09
Application:stacker lift platform,Medical printer,teaching equipment,garden machinery,Storage Tool,Low-voltage electrical equipment,medical Equipment,survey accessories,medical treatment,DC generators,test laboratory equipment and accessories
Similar models:34306/34478 NU 2344 ECN1MA 313445 C OH 2344 H NU 344 M BD-23244 CCK/W33-AOH 2344 PCM 303440 M NU 2344 ECMA QJ 1248 MA/344524 QJ 344 N2MA
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NUP 2216 ECML	80	140	33	Bearings, units and housings
SNL 3068 ATURA	315.9125	-	-	Bearings, units and housings
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TU 508 M	-	-	-	Bearings, units and housings

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