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：2024-12-13
Application:pneumatic Pump,Pneumatic Control Valves,printing equipment,Broadcasting System,Forming mold,metering pump,plastic rolling,power protection,Cylinder Pneumatic Treatment Element,Machine Tool Accessories,mathematical instruments
Similar models:PCM 12012560 M 51256 M QJ 1256 N2MA WS 81256 K 81256 M 81256 M GS 81256 PCM 12012560 E
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FSYE 2 3/4-3	69.85	-	-	Bearings, units and housings
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SHT 22	22	-	-	Coupling systems
SNL 522-619	101.6	-	-	Bearings, units and housings

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