Siemens 611 User Manual
System integration
7.3 Bearings
Note
For more installation examples, see "Motor assembly".
For more installation examples, see "Motor assembly".
7.3
Bearings
Selecting the bearing
1FW6 torque motors are built-in motors for direct rotary or swivel axes. To set up a complete
drive unit, a bearing between the stator and rotor is required in addition to the phase-angle
encoder system.
Your choice of bearing is governed by the following factors:
● Geometric requirements (internal and external diameter)
● Speed
● Load (magnitude, direction)
● Rigidity (accuracy, pretension)
● Service life
The bearing is not included in the scope of supply.
Your choice of bearing is governed by the following factors:
● Geometric requirements (internal and external diameter)
● Speed
● Load (magnitude, direction)
● Rigidity (accuracy, pretension)
● Service life
The bearing is not included in the scope of supply.
WARNING
Bearing currents and static charging of the rotor:
Depending on the design and properties of the bearing, the rotor may become statically
Depending on the design and properties of the bearing, the rotor may become statically
charged.
Measures must be taken to prevent this (e.g. insulated bearing design or grounding).
Measures must be taken to prevent this (e.g. insulated bearing design or grounding).
Note
Radial forces are generated between the stator and rotor. These must be taken into account
Radial forces are generated between the stator and rotor. These must be taken into account
when you select the bearing (see also "Motor assembly)".
1FW6 Built-in torque motors
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7
111