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 248 N2MA

QJ 248 N2MA

Dimensions

d		240	mm
D		440	mm
B		72	mm
d₁	≈	315	mm
D₁	≈	365	mm
a		238	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	4	mm

Abutment dimensions

d_a	min.	258	mm
D_a	max.	422	mm
r_a	max.	3	mm

Calculation data

Basic dynamic load rating	C	650	kN
Basic static load rating	C₀	1200	kN
Fatigue load limit	P_u	27.5	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

53.2

Model Number: QJ 248 N2MA
Inner Diameter：240mm Outer Diameter：440mm Width：72mm
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：2021-06-08
Application:tire industry,journal lathe,noise inspection,SPA equipment,garbage disposal,Ball screw,forklift industry,Industrial,generator,engine,Handling machinery and various industrial machinery
Similar models:QJ 1248 MA/344524 24892 CAMA/W20 248/1800 CAFA/W20 NUB 248 MA 248/530 CAMA/W20 32244T248/DB K 81248 M HM 218248/210 248/530 CAK30MA/W20 24892 CAK30MA/W20
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W 623-2Z	3	10	4	Bearings, units and housings
ZW 17x24	17	24	2	Seals

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