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 1256 N2MA

QJ 1256 N2MA

Dimensions

d		280	mm
D		500	mm
B		90	mm
d₁	≈	365	mm
D₁	≈	415	mm
a		390	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	5	mm

Abutment dimensions

d_a	min.	302	mm
D_a	max.	478	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	728	kN
Basic static load rating	C₀	1460	kN
Fatigue load limit	P_u	31.5	kN
Limiting speed		2000	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

Model Number: QJ 1256 N2MA
Inner Diameter：280mm Outer Diameter：500mm Width：90mm
Reference speed:2000 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：2026-04-17
Application:filter paper products,agriculture,root canal filling,steam Hydraulic control element,Reflective Materials Industrial fabrics,product accessories,light therapy instrument,plastic molding,Doppler,Industrial Electromechanical,Vacuum generator
Similar models:PCM 12012560 E K 81256 M QJ 1256 N2MA PCM 12012560 M 81256 M GS 81256 51256 M WS 81256
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