ABB
64
ABB/ BU Machines / HV Induction motors IEC catalogue / Engineered motors EN 12-2007
2
Sleeve bearings
The axial float of rotor is as standard ±8 mm from
mechanical center. The running center locates within
the float area and therefore operation is also allowed
while machine is uncoupled, e.g. during test run. A
pointer showing running center with regard to end limits
is available as standard. Continuous axial forces are
not permitted and therefore limiting type coupling is
needed to ensure rotor location within axial float range.
On request, when special axial float is at least ±3 mm,
magnetic running center can be adjusted within
±2.4 mm from mechanical center (option).
Sleeve bearings are generally self-cooled, oil ring
lubricated but some require external flood lubrication.
Please see the lubrication table below for standard
lubrication requirements based on a maximum 40 °C
ambient and 50 Hz operation. Consult ABB for ambient
temperatures above 40 °C, and/or for self-cooling of
bearings where flood lubrication is standard. Those
units requiring flood lubrication are supplied with
provisions only. Refer oil supply pressure, type of oil,
and location of provisions to factory for review prior to
order acceptance.
Frame size
Poles
D-end bearing
N-end bearing
Lubrication Method
HXR 355
2
EFZLB 9-80
EFZLQ 9-80
Oil circulation
1)
HXR 355
t
4
EFZLB 9-90
EFZLQ 9-90
Self lubrication
HXR 400
2
EFZLB 9-80
EFZLQ 9-80
Oil circulation
1)
HXR 400
t
4
EFZLB 9-100
EFZLQ 9-100
Self lubrication
HXR 450
2
EFZLB 9-80
EFZLQ 9-80
Oil circulation
1)
HXR 450
4
EFZLB 9-100
EFZLQ 9-100
Oil circulation
1)
HXR 450
t
6
EFZLB 9-100
EFZLQ 9-100
Self lubrication
HXR 500
2
EFZLB 9-90
EFZLQ 9-90
Oil circulation
1)
HXR 500
4
EFZLB 11-100
EFZLQ 9-100
Oil circulation
1)
HXR 500
t
6
EFZLB 11-100
EFZLQ 9-100
Self lubrication
HXR 560
2
EFZLB 14-125
EFZLQ 14-125
Oil circulation
HXR 560
4
EFZLB 14-125
EFZLQ 14-125
Oil circulation
1)
HXR 560
6
EFZLB 14-125
EFZLQ 14-125
Self lubrication
HXR 560
t
8
EFZLB 14-140
EFZLQ 14-140
Self lubrication
AMA 400
2
EFZLB 9-80
EFZLQ 9-80
Self lubrication
AMA 400
t
4
EFZLB 9-100
EFZLQ 9-100
Self lubrication
AMA 450
2
EFZLB 9-80
EFZLQ 9-80
Self lubrication
AMA 450
t
4
EFZLB 11-125
EFZLQ 9-100
Self lubrication
AMA 500
2
EFZLB 9-100
EFZLQ 9-100
Oil circulation
1)
AMA 500
4
EFZLB 14-125
EFZLQ 11-125
Self lubrication
AMA 500
t
6
EFZLB 14-140
EFZLQ 11-125
Self lubrication
1)
Possibility for self lubrication, please contact ABB
Table below: Sleeve bearings and lubrication method.