QJ 1248 MA/344524Four-point contact ball bearing

SKU: QJ 1248 MA/344524Four-point contact ball bearing

Four-point contact ball bearings 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.

ID:102605

Dimensions - QJ 1248 MA/344524

Dimensions

d
240 mm
Bore diameter
D
440 mm
Outside diameter
B
85 mm
Width
d1
316 mm
Shoulder diameter inner ring
D1
364 mm
Shoulder diameter outer ring/ inner diameter housing washer
a
340 mm
Distance pressure point(s)
r1,2
min. 4 mm
Chamfer dimension inner ring

Abutment dimensions - QJ 1248 MA/344524

Abutment dimensions

da
min. 258 mm
Abutment diameter shaft
Da
max. 422 mm
Abutment diameter housing
ra
max. 3 mm
Fillet radius

Calculation data

Basic dynamic load rating C
663 kN
Basic static load rating C0
1 220 kN
Fatigue load limit Pu
28 kN
Limiting speed
2 400 r/min
Calculation factor A
9.01
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
61 kg

Reviews

There are no reviews yet.

Be the first to review “QJ 1248 MA/344524Four-point contact ball bearing”

Your email address will not be published. Required fields are marked *