Siemens 1FT7 Operating Instructions Manual page 15

Connection
Options
S/R = Signals/revolution
1)
1FT7 synchronous motors
Operating Instructions, 04/2010, 610.40075.40b
Connectors for signals and power, can be rotated
Flange 1 (compatible with 1FT6)

Drive shaft end with feather key and keyway (half-key

balancing)
Integrated holding brake

Degree of protection IP64, IP67

Sealing air connection (only in conjunction with IP67)

Vibration severity grade R

Radial eccentricity, concentricity and axial

eccentricity: Tolerance R
Planetary gearbox, built-on

Description
3.2 Technical features
15