Mechanical Data; Mounting Flange And Design - HEIDENHAIN TNC 410 M Technical Manual

7.8 Mechanical Data

7.8.1 Mounting Flange and Design

IM B35
April 2007
All HEIDENHAIN motors except the QSY 041B, QSY 071B and the QAN 104
series are equipped with a mounting flange according to DIN 42948 and
IEC 72.
By mounting the motor via an attachment flange part of the power loss is
dissipated via this flange. If the motor is mounted so that it is thermally
insulated, which means that it cannot dissipate any heat through the flange, it
is necessary to reduce the motor torque by approx. 5 to 15% to avoid
overheating of the motor.
All indicated motor operating data refer to a maximum ambient temperature
of +40 °C.
If you are using a motor with natural cooling, you must therefore ensure
adequate heat dissipation. If the space in which the motor is mounted is too
narrow (e.g. from a narrow frame or shaft), the dissipation of heat may be
obstructed, which can lead to excessive heating of the motor.
The HEIDENHAIN synchronous motors are available in IM B5 design
according to IEC 60 034-7; the asynchronous motors are available in IM B35
design according to IEC 60 034-7.
Design B35
IM B8
Mechanical Data
IM V36
IM B7
IM V15
IM B6
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