Rolling Bearing - Siemens SIMOTICS XP 1MB5 Operating Instructions Manual

1. Secure the separately driven fan cowl against falling before you start working.
2. If a speed sensor is installed, it is located inside the separately driven fan cowl. Separate the
brought-out cables of the speed sensor before removing the separately driven fan cowl in the
corresponding terminal box.
3. Loosen the fixing screws that secure the separately driven fan cowl on the enclosure.
4. Observe existing retaining components and retain them for the reassembly.
Assembly
Proceed in the reverse order to assemble the separately driven fan cowl.
1. If a speed sensor is installed:
– Ensure that the cables of the speed sensor are not damaged during the assembly.
– Before attaching the separately driven fan cowl, route the cables of the speed sensor to
2. Position the separately driven fan cowl and tighten the fixing screws.
3. When installing the separately driven fan cowl, make sure that the retaining components are
undamaged and correctly installed.
4. Connect the encoder cable.
9.4.8

Rolling bearing

• Shaft sealing rings are used to seal machines at the rotor shaft.
• Use the specified bearings.
• Ensure that the bearing sealing disks are in the correct position.
• Insert the elements for bearing preloading at the correct end.
• Fixed bearings can have a locking ring or bearing cover.
• Seal the bearing cap screws with the appropriate gaskets or with grease.
• Do not interchange the position of the bearing covers - DE and NDE or inner and outer.
Protect the bearings against the ingress of dirt and moisture.
1MB5 shaft height 400/450
Operating Instructions, 04/2023, A5E52802354A
the outside between two cooling ribs and affix them temporarily.
Maintenance
9.4 Corrective maintenance
129