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
Makino C-40 Spindle Repair
The Makino C-40 is an older tool and cutter grinder. It comes equipped with a grease lubricated and pulley driven spindle capable of running up to 3,420 rpm.
When this Makino C-40 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. Upon inspection it was determined that the spindle failed due to the bearings becoming contaminated. No dimensional deviations were noted on this spindle.
The following actions were performed on this Makino C-40 spindle:
- Clean all parts of the spindle
- Replace all bolts and o-rings
- Replace bearings
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