Rockwell Automation MDF-SBxxxx Kinetix 6000M Integrated Drive Motor Installation Instructions - Manual (Page 17)

Kinetix 6000M Integrated Drive-Motor 17
Rockwell Automation Publication MDF-IN001B-EN-P - August 2013
Remove and Replace Shaft Keys and Shaft Seals
IDM units are available with or without a slot for a shaft key, but a shaft key is recommended.
The shaft seal provides environmental sealing for the integrated drive-motor. IDM units are
shipped with a PTFE (polytetrafluoroethylene) shaft seal installed.
Remove and Replace Shaft Keys
The IDM unit must be dismounted from a machine to remove or replace the shaft key, and this
procedure assumes that task has already been completed.
Shaft keys for IDM units are constructed of stainless steel - 300 series. The design tolerances
create an interference fit (slightly larger than the opening) that is a secure and rigid fit for the
mating connection.
Perform one of these actions to remove a shaft key:
•
Lift the key by grasping it with a pliers or similar tool.
•
Lever the key with a screwdriver inserted between the key and the slot.
Follow these steps to replace a shaft key.
1. Verify the replacement key matches the keyway in the shaft and the mating mechanical
connection (for example, a coupling or pulley) before proceeding.
2. Align the front of the key with the front of the shaft.
This prevents the radial end-of-cut at the body of the IDM unit from interfering with
the correct seating of the key.
3. Support the underside of the shaft diameter with a fixture and use a controlled press
device to apply a constant force across the top surface, to press the key into the shaft.
ATTENTION: Damage can occur to the bearings and the feedback device if sharp impact is applied to
the shaft during the installation of couplings and pulleys or when removing the shaft key. Damage to
the feedback device can also result by applying leverage to the faceplate to remove devices mounted
on the shaft. Do not strike the shaft, key, couplings, or pulleys with tools during installation or removal.
Use a wheel puller to apply pressure from the user-end of the shaft to remove any friction fit or stuck
device from the shaft.
Radial Cut at
End of Keyway
Support for Shaft
and IDM Unit
Key Alignment