09/03/2026
Repair and Rebuild by V&R Spindle Repair Service, LLC.
Mori Seiki MV65 — CAT 50 Spindle Shaft ID Taper Restoration
Contact V&R Spindle Repair Service, LLC today for MORI SEIKI Spindle Repair 580-716-8943 or [email protected]
A severely damaged spindle shaft ID taper does not always mean the shaft needs to be replaced. With the proper repair process and precision machining, it can often be restored to the original specifications and tolerances.
In this case, the CAT 50 ID taper contained a ceramic sleeve that had become severely cracked, broken, and damaged beyond repair.
Our repair process included:
• Removal of the damaged ceramic sleeve
• Precision manufacturing of a new steel replacement sleeve
• Heat treatment of the new sleeve
• Precision press-fitting of the sleeve into the spindle shaft
• Finish grinding the ID taper back to the required original specifications and tolerances
The result: a severely damaged CAT 50 spindle shaft restored to precise operating condition.
From damaged beyond repair to precision restored.
