Siemens SIMOTICS M-1PH8, Operating Instructions Manual

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Mechanical mounting
4.7 Mounting of rotating unions on 1PH8 hollow-shaft motors
1PH808/1PH810 main motors
78
Operating Instructions, 04/2017, 610.48004.40f
Mounting on air-cooled motors
Air-cooled motors have a “0” or a “1” in the 11th position of Article No. together with option
Y64.
Air-cooled motors are equipped with an intermediate housing between the motor and the
axially mounted fan. The intermediate housing is used to accommodate the rotating union. It
is suitable for rotating unions up to a length (without rotor connection thread and centering)
of 120 mm and a diameter of up to 55 mm. Due to limitations of space, rotating unions with
radial connections are recommended for air-cooled motors, e.g. DEUBLIN 1129-050-301.
Rotating unions with axial connections are also possible in short versions, e.g. DEUBLIN
1129-730-731. In that case, an angled element must be used on the axial connection to
which the supply hose is connected. The dimension 120 mm must not be exceeded with the
angled element.
NOTICE
Sealing the remaining holes
Seal the remaining holes again between the cutout and the hoses to ensure that motor
cooling is still effective.