Broken Shaft Repair and Keyway Machining
Due to extreme stress, accidents or fatigue, servo motor rotor shafts can break, bend or strip their keyways. Instead of scrapping the motor, we repair the shaft to original dimensions in our mechanical workshop.
Shaft Fault Symptoms
- Shaft broken or will not turn by hand
- Bent shaft, high runout
- Worn keyway, pulley play
- Vibration at the coupling/pulley connection
Our Shaft Revision Process
We renew broken rotor shafts using precise welding and machining, re-machine worn keyways on milling machines and straighten bent shafts with runout tests. After shaft repair we always apply dynamic balancing. See our services.
Why Shaft Repair?
Shaft damage does not require replacing the whole motor. Original-dimension repair is far cheaper than scrapping the motor.
Frequently Asked Questions
Can a broken rotor shaft really be repaired?
Yes. With precise welding and machining the shaft is restored to original dimensions, followed by dynamic balancing.
Can a stripped keyway be re-cut?
Yes. The worn keyway is re-machined and dimensionally verified.
Is balancing mandatory after shaft repair?
Yes. Without balancing, centrifugal force causes vibration and new faults.
Is there a warranty after repair?
Yes. The motor is delivered under warranty after shaft repair and balancing.