Worn shaft, journal and keyway rebuilding
Keyway hammering, journal scoring and worn shaft seats leave the press-fit oversized and the journal undersized for its sleeve.
What is failing
Keyway hammering, journal scoring, and worn shaft seats leave the press-fit sloppy and the journal undersize for its sleeve or bearing. The shaft runs out of tolerance and the part it drives wears in turn. Arc-welding a slender rotor to build it back up risks heat distortion that ruins the runout.
How AAS does it
AAS rebuilds journals, keyways, and shaft seats cold with metal composites such as Belzona 1111 and 1131, then machines them back to the specified diameter. The crew prepares the worn surface, applies the composite, and turns it to size in our shop or on site. No arc-weld heat goes into the rotor, so there is no distortion to chase out afterward.
Typically applied with Belzona 1111, Belzona 1131, matched to the service conditions.
The shaft comes back to its specified diameter with the press-fit and keyway restored. The rotor stays straight because no welding heat went into it, so it runs true without a re-machine for distortion.
How AAS delivers it
AAS performs Worn shaft, journal and keyway rebuilding work for Manufacturing, Oil & Gas, and Power Generation operations across Baton Rouge and Louisiana, cold-applied and in place wherever possible, on your turnaround schedule. Crews are factory-trained Belzona applicators, the repair system is matched to the service conditions it will see, and urgent failures are covered by 24-hour on-call response. The result is a permanent, engineered repair that returns the asset to service without the cost or downtime of full replacement.
Related applications
Have equipment that needs to stay in service?
Tell us what is failing. We respond quickly, and we offer 24-hour on-call service.