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
Setco 4003Y Spindle Repair
Our customer runs several of these Setco 4003Y spindles and has been for decades. They are a grease lubricated and belt driven spindle that is capable of running up to 3,500 rpm. Eventually the threads for the tool holder wear out. We are able to fix this problem for them with out the cost of manufacturing a new shaft. This can be done on most spindle models and is a fairly common problem on surface grinding spindles.
This Setco 4003Y spindle was sent in for a full breakdown and evaluation. After finishing the disassembly, we noted that the bearings were severely contaminated. The shaft taper also had 4 microns of runout that will need to be addressed. No other dimensional deviations were noted for this repair.
The following actions were performed on this Setco 4003Y spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and assembly screws
- Kiss grind shaft taper
After reassembly of all components, adjusting bearing preload, and undergoing break-in and testing procedures, this spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.
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Running this spindle too long caused deformed ball bearings and damage to the outer race Damage to the outer race is consistent with prolonged operation after spindle exhibited initial signs of needing to be rebuilt Every spindle rebuilt by North…Read More