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Northland Tool Blog
Need Your Spindle’s Drawbar Re-Qualified?
Give us a call 800-774-6353. Performing a Grind Plate Grind to your drawbar shaft in most cases is a lower cost alternative than replacing it with new. Over time the belleville washers or coil springs can wear grooves in the drawbar shaft itself. This can cause poor tool retention force and difficulty getting full travel of the drawbar during tool changes.
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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 rebuil…
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GPG: Grind-Plate-Grind Process Explained
When a cylindrical surface, such as the OD of a shaft or the ID of a tooling taper, becomes worn or damaged, we use a process referred to as grind-plate-grind (GPG) to restore dimensions to original OEM specification.
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