5.6.1.1 Pulling on with integrated DU bushing
Procedure
NOTICE
Damage to the gear unit
The gear unit can become damaged if it skews during assembly.
The hollow shaft must be ush with the machine shaft during assembly of the gear unit on the
machine shaft. The gear unit must be prevented from skewing.
NOTICE
Damage to the rolling-contact bearings
The rolling-contact bearings can become damaged if the gear unit skews during mounting.
The hollow shaft may be mounted on a machine shaft shoulder only if the gear unit features
one of the following:
• Torque arm
• Elastic pedestal
• Supported by gear unit swing base
Proceed as follows to mount the gear unit with hollow shaft and shrink disk onto the driven
machine shaft with integrated DU bushing:
1. Use suitable hoisting gear to lift the gear unit.
2. Mount the gear unit using the nut and screw spindle.
The gear unit is supported by the end plate in the hollow shaft.
3. Pull on the gear unit with hollow shaft up to the seat below the shrink disk on the machine
shaft.
The machine shaft centres itself in the seat below the shrink disk and in the DU bushing.
4. Mount the hollow shaft against the machine shaft collar:
Special aspects of shaft-mounted gear units with hollow shaft and shrink disk
Pull on the gear unit with hollow shaft up to the seat below the shrink disk on the machine shaft.
The machine shaft centres itself in the seat below the shrink disk and in the DU bushing.
Assembly
5.6 Shaft-mounted gear unit with hollow shaft and shrink disk
Assembly and operating instructions A5051en
Edition 06/2020 83