Bearings - Siemens SIMOTICS T-1FW6 Configuration Manual

Built-in torque motors for sinamics s120

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Bearings

Selecting the bearing

1FW6 torque motors are built-in motors for directly driven 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)

● Load (magnitude, direction)

● Rigidity (accuracy, pretension)

● Service life

The bearing is not included in the scope of supply.

Bearing currents and static charging of the rotor

Depending on the design and properties of the bearing, the rotor may become statically

• Apply the corresponding remedial measures, e.g. insulated bearings or the appropriate

Radial forces are generated between the stator and rotor. These must be taken into account

when you select the bearing, see also the Chapter "Forces that occur between the stator and

rotor (Page 119)".

1FW6 Built-in torque motors

Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9

Motor components and options

4.1 Motor components