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Mechanical Design
3.1 Frame design
A code is cast into the motor close to the retaining holes to identify the frame size.
SIEMOSYN 1FU8 motors have aluminum frames.
Cast iron frames are possible up to shaft height 112.
The bearing end shields at the drive end and non-drive end of SIEMOSYN 1FU8
motors are, in some cases, manufactured out of aluminum and in some cases out
of cast iron; refer to Table 3-1.
Instead of aluminum bearing end shields, cast iron end shields can be supplied.
Foot-mounted versions of the motors have, in some cases, two retaining holes at
the non-drive end, refer to Chapter 6.
For shaft heights 71 to 90, the frame feet are cast.
For shaft heights 112 to 160, the feet are bolted on.
Siemens AG, 2003. All rights reserved
SIEMOSYN Motors, 1FU8 (PFU) – 09.03 Edition
3
1FU8/3-31
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