CMS M0405400 Spindle Repair and Rebuild

CMS Brembana M040500 spindle repair and rebuild_before and after

CMS M0405400 before and after

The CMS M0405400 is a workhorse in the stone cutting industry! This brand of stone cutters is one of the more popular spindles that we repair. In most cases, no matter how beat up a CMS router is on the way in to HST, it leaves looking and performing like new! This case was no exception. The main reason for the spindle failure was a failed seal and liquid contamination of all bearings.  Nearly all grease lubrication had been washed out of all bearings. Although each bearing was sealed, this only delayed the inevitable. Bearing contamination and failure; and this is exactly what happened. Rust and further contamination was noted within the stator area, so we washed, baked and surge tested the stator to be sure it was OK.

CMS Brembana M040500 spindle repair and rebuild_rusted bearings

Front bearings were very rusted and contaminated!

Along with internal contamination and bearing failure, we also found the cam angle within the shafts taper ID where the gripper assembly seats to be severely pitted and worn. This was no surprise as the customer had concern with the spindle holding heavier tools. This worn angle was causing the spindle to drop the heavier tools. This is common with the CMS M0405400. Because of the excessive wear to this particular shaft, we replaced it with new. And after also replacing the drawbar springs and collet, the tool holding issues were completely eliminated. We replaced all of the seals, bearings as well.

CMS Brembana M040500 spindle repair and rebuild_rusted inner cam_taper

Inner cam angle and taper of shaft were badly worn and corroded. We replaced with new.

This CMS spindle was up and running like new when it left our facility. Our customer was very pleased with our fast turn-around time as well. For expert CMS M040500 spindle repair, please email or call us at 603-483-0333 for a free, no obligation quote. We offer Factory Equivalent and Quick-Turn-Around. We are fast, experienced and our work is guaranteed!!