Case Studies
When a Bearing Failure Takes Out Your Rotor and Stator Too
Case Study — Industrial Spindle Recovery A manufacturing shop sent in an Omlat HSK63F spindle after catastrophic rear bearing failure cascaded into rotor-stator arcing damage. Here is what the teardown found, how the spindle was rebuilt, and what it took to return it to certified spec. Labor invested 38 hrs 26 labor + 12 machining…
Read MoreHSD Spindle Preventative Maintenance
← Back to HSD Spindle Repair What Actually Destroys HSD Spindles — And How to Prevent It A Maintenance Guide Based on What We Find When We Open Them Most spindle maintenance guides are organized around tasks — clean the taper, check the air pressure, monitor vibration. That’s not wrong, but it doesn’t explain why…
Read MoreCase Study: Perske KRSR35-7-2-SM HSK25R Spindle Rebuild After Catastrophic Rear Bearing Failure
Spindle Make: PerskeModel: KRSR35-7-2-SMTool Interface: HSK25RSerial Number: 01414118Condition at Arrival: Locked Up The Situation This Perske KRSR35-7-2-SM HSK25R spindle was brought in completely locked up. The unit could not rotate and required immediate disassembly to determine the cause of failure. Full teardown confirmed catastrophic rear bearing failure as the root issue. Failure Analysis 🔹 Catastrophic…
Read MoreCase Study: CMS GR.6997-WC Spindle Rebuild After Stator Failure & Drawbar Engagement Incident
Spindle Make: CMSModel: GR.6997-WCSerial Number: Co.039959-170Service Type: Full Rebuild + Stator Rewind + Mechanical Repair The Situation This CMS GR.6997-WC spindle was sent in for evaluation after performance issues were reported. Initial electrical testing immediately revealed a critical issue:The stator had failed and required rewinding. However, further disassembly uncovered an additional mechanical event that significantly…
Read MoreCase Study: Brevettato NDX13A/40 Spindle Rebuild After Severe Moisture & Oil Contamination
Spindle Make: BrevettatoModel: NDX13A/40 ISO 40Serial Number: 02529/19Condition at Arrival: Locked UpService Performed: Full Precision Rebuild + Pneumatic System Restoration This Brevettato NDX13A/40 spindle was received in a locked condition and unable to rotate. Initial inspection revealed significant contamination from the compressed air system combined with missing internal components in the rotary coolant coupling. The…
Read MoreCase Study: Omlat 06478200 Spindle Rebuild After Compressor Oil Contamination
How Air System Failure Nearly Caused Catastrophic Bearing Damage Spindle Model: Omlat 06478200Serial Number: 080997Service Performed: Full Precision RebuildRoot Cause: Compressor oil ingression This Omlat 06478200 spindle was sent in for initial inspection after performance concerns began developing in production. During disassembly, a severe contamination issue was discovered — compressor oil had entered the spindle…
Read MoreCase Study: When a Stuck Tool Holder Turned Into a Full Spindle Rebuild
A HSD ES915A spindle was hand-delivered to Atlanta Precision Spindles after a tool holder reportedly became stuck in the taper.
Read More