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 1288 N2MA

QJ 1288 N2MA

Dimensions

d		440	mm
D		790	mm
B		155	mm
d₁	≈	574	mm
D₁	≈	656	mm
a		615	mm
h		20.5	mm
b		32	mm
r₀		3	mm
r_1,2	min.	7.5	mm

Abutment dimensions

d_a	min.	476	mm
D_a	max.	754	mm
r_a	max.	6	mm

Calculation data

Basic dynamic load rating	C	1400	kN
Basic static load rating	C₀	3750	kN
Fatigue load limit	P_u	64	kN
Limiting speed		1200	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

350

Model Number: QJ 1288 N2MA
Inner Diameter：440mm Outer Diameter：790mm Width：155mm
Reference speed:1200 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：2026-04-16
Application:sheet industry,building decoration raw materials and accessories,miscellaneous instruments,equipment,injection molding machine,Pneumatic Actuator,equipment,survey accessories,tooth filling,hydraulic actuator,wall industry
Similar models:51288 F QJ 1288 N2MA 81288 M
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