QJ 1244 N2MAFour-point contact ball bearing with locating slots

SKU: QJ 1244 N2MAFour-point contact ball bearing with locating slots

Four-point contact ball bearings with locating slots can accommodate high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for supporting large axial forces. The outer ring, with ball and cage assembly, can be mounted separately from the two inner ring halves. The locating slots can be used to prevent the outer ring from rotating.

ID:102602

Dimensions - QJ 1244 N2MA

Dimensions

d
220 mm
Bore diameter
D
400 mm
Outside diameter
B
78 mm
Width
d1
287 mm
Shoulder diameter inner ring
D1
333 mm
Shoulder diameter outer ring/ inner diameter housing washer
a
310 mm
Distance pressure point(s)
h
12.7 mm
Locating slot depth outer ring
b
10.55 mm
Locating slot width outer ring
r0
2 mm
Corner radius locating slot
r1,2
min. 4 mm
Chamfer dimension inner ring

Abutment dimensions - QJ 1244 N2MA

Abutment dimensions

da
min. 238 mm
Abutment diameter shaft
Da
max. 382 mm
Abutment diameter housing
ra
max. 3 mm
Fillet radius

Calculation data

Basic dynamic load rating C
592 kN
Basic static load rating C0
1 020 kN
Fatigue load limit Pu
24.5 kN
Limiting speed
2 600 r/min
Calculation factor A
6.47
Limiting value 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
45.5 kg

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