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 1280 N2MA

QJ 1280 N2MA

Dimensions

d		400	mm
D		720	mm
B		140	mm
d₁	≈	522	mm
D₁	≈	598	mm
a		560	mm
h		20.5	mm
b		25	mm
r₀		3	mm
r_1,2	min.	6	mm

Abutment dimensions

d_a	min.	428	mm
D_a	max.	692	mm
r_a	max.	5	mm

Calculation data

Basic dynamic load rating	C	1300	kN
Basic static load rating	C₀	3250	kN
Fatigue load limit	P_u	58.5	kN
Limiting speed		1300	r/min
Calculation factor	e	1.34
Calculation factor	X	0.54
Calculation factor	Y₀	0.44
Calculation factor	Y₁	0.47
Calculation factor	Y₂	0.81

Mass

Mass bearing

265

Model Number: QJ 1280 N2MA
Inner Diameter：400mm Outer Diameter：720mm Width：140mm
Reference speed:1300 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:aerial work platform,equipment and,van,rubber products machinery and equipment,security,mathematical instruments,electronic components,Technical Equipment,ignition system,nail products,glass processing machine
Similar models:QJ 1280 N2MA 81280 M 51280 F
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