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
Amada Meister G3 Spindle Repair
The Amada Meister G3 spindle is direct coupling driven, capable of running up to 5,000 rpm, and grease lubricated.
While we do see quite a few spindles from manual surface grinders, this spindle was from a CNC forming grinder from Amada Machine Tools (formerly known as Wasino.) This spindle is used for high-production, high-precision grinding of both surfaces and profiles. As is typical with so many grinding spindles from high production environments, the front bearing pair in this spindle had failed from coolant contamination.
Other than repairing some light damage to the spanner holes in the front shaft nut and replacing the contaminated bearings, this was a very straightforward repair.
Our customer was able to reinstall their spindle in like-new condition while experiencing minimal downtime. This rebuild was accomplished with an economical price backed by our 1-year warranty.
DETAILED CAUSE OF FAILURE
This is the spindle broken down and ready for cause of failure and scope of work evaluation.
Close up of the front bearings showing some of the contamination that caused the bearings to fail. During the evaluation we check labyrinths on the spindle to make sure that they are functioning properly to keep future contamination out.
The damage to the front nut is highlighted in red. We repair this in our machining area set up specifically for the remanufacture and reworking of spindle parts.
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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