Configuration Manual AC Induction Motors 1PH4 - Siemens ...
Configuration Manual AC Induction Motors 1PH4 - Siemens ...
Configuration Manual AC Induction Motors 1PH4 - Siemens ...
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Motor Description<br />
1.7 Bearing design<br />
Grease change interval<br />
0.8 � tLW<br />
1-26<br />
( tLW = bearing change interval)<br />
Continuous operating speed<br />
The max. permissible continuous operating speed nS1cont depends on the bearings<br />
and the shaft height.<br />
Table 1-9 Assignment, max. speed/continuous operating speed to shaft height and bearing design<br />
SH<br />
[mm]<br />
Duplex bearing<br />
[rpm]<br />
Single bearing<br />
[rpm]<br />
Bearing for increased<br />
speed<br />
[rpm]<br />
n max 1) n s1cont n max 1) n s1cont n max 1) n s1cont<br />
100 7500 5600 9000 6500 12000 10000<br />
132 6700 5200 8000 6000 10000 9250<br />
160 5300 4000 6500 4500 8000 7000<br />
Important<br />
If the motor is operated at speeds between ns1cont and nmax, a speed duty cycle<br />
with low speeds and standstill intervals is required in order to reliably guarantee<br />
that the grease is well–distributed in the bearings.<br />
1) Mechanical limiting speed (permissible for 10 min. cycle with: 3 min n max, 6 min 2/3 n max, 1 min<br />
standstill)<br />
© <strong>Siemens</strong> AG 2003 – 2006 All rights reserved<br />
<strong>AC</strong> <strong>Induction</strong> <strong>Motors</strong>, <strong>1PH4</strong> (APH4) – 04.06 Edition
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