Nachi-Fujikoshi Spindle Repair and Rebuild
Your Nachi Fujikoshi spindle is in expert hands with the factory-trained technicians at High Speed Technologies, Inc. We have repaired dozens of Nachi-Fujikoshi spindles to original factory performance. Need it fast? We can repair your spindle within three days of approval. All spindle repairs are backed by a complete warranty and our 30-year reputation of OEM-quality spindle repair.
Here are just some of the common Nachi-Fujikoshi spindle performance issues that we resolve:
- Noisy bearings
- Contaminated bearings
- Increased vibration
- Damaged shaft
- Poor part finish
- Failed seal
- Shaft end play
- Shaft seized
- Excessive runout at Taper ID
- Quill stuck in shaft
- Preventative Maintenance
At HST, we replace all bearings with top name-brand ABEC 7 super-precision spindle bearings. Your spindle repair will minimally include replacing all seals, grinding bearing spacers for proper preload and restoration of damaged shaft surfaces. Then we perform high-speed balancing to eliminate vibration, extend spindle life and improve finish quality on parts. HST has provided the CNC machining community with a high-quality alternative to higher-priced OEM spindle repairs since 1986.
Below are some examples of HST’s OEM-quality repairs on Nachi-Fujikoshi spindles:
Nachi-Fujikoshi before and after
This Nachi-Fujikoshi spindle arrived to High Speed Technologies looking extremely worn and had a damaged bearing attached to the shaft with a wire tie. The customer had attempted to repair the spindle themselves and then quickly decided against it. (If you ever feel inclined to repair your own spindle, please take a look at our FAQ page Can I Repair My Own Spindle?). The attached bearing and the bearings remaining within the spindle assembly were found to be worn, contaminated and damaged. Along with the damaged bearings we also found the rear housing bore to be significantly over-sized causing the rear bearing set to fit very loosely within the bore. There was also visible damage to the shaft pilot face.
All bearings were worn and contaminated.