Catastrophic bearing failure was the main cause of this spindle malfunction Continue reading to learn how Northland Tool performed this repair and converted a Weiss GHK 176239 spindle from grease-injected to permanent grease lubrication……Read More
Okamoto OGM 820UD Spindle Repair
The Okamoto OGM 820UD is a high performance CNC surface grinder. It comes fitted with this grease lubricated and belt driven spindle.
This Okamoto OGM 820UD spindle rotated freely when it arrived at Northland Tool, but the bearings felt worn when spun by hand. After performing a full disassembly, we recorded that the grease in the bearings was contaminated with coolant and one of the threaded holes in the rear housing has been cross threaded.
A dimensional evaluation was then completed and we found two unacceptable deviations. FIrst, the front ID tooling taper had 4μ of run out and second, the front shoulder had high run out as well. No other dimensional deviations were noted for this repair.
The following actions were performed on this Okamoto OGM 820UD spindle:
- Clean, inspect overall dimensions
- Replace bearings, bolts, o-rings, and seal
- Kiss grind the ID taper and front bearing shoulder
- Repair damaged threads in rear housing
After reassembly of all components and adjusting bearing preload, we put the spindle through a rigorous break-in and testing procedure to make sure it passes our final quality inspection.
This spindle passed our final quality inspection and was returned to our customer with a 1-year warranty.
Does your spindle need repair? GET A QUOTE TODAY
Okamoto ACC 12-24 EX Spindle Repair
This Okamoto ACC 12-24 EX spindle was hard to turn by hand and had high run out on the face when it arrived at Northland… [...]
Okamoto OH-60M Spindle Repair
This Okamoto OH-60M spindle was difficult to rotate by hand incoming. Upon disassembly, we noted that the front shaft nut was loose and the spindle… [...]
Okamoto ACC-820DX Spindle Repair
This Okamoto ACC-820DX spindle was noisy when spun by hand incoming and had an extreme amount of rust and corrosion present on the nose of… [...]