Using Accelerometer Data to Diagnose Spindle Problems

Why Accelerometer Monitoring Matters A spindle failure on a deep hole drilling machine stops everything. The machine is down for days while the spindle is rebuilt or replaced. I use accelerometer-based vibration monitoring to detect bearing defects months before they cause failure, so I can schedule repairs during planned downtime. The accelerometer system cost is about 2000-5000 USD for a single machine. The value is in preventing unexpected spindle failures that cause extended downtime. A single emergency spindle replacement can cost 15,000-30,000 USD in parts and labor plus lost production time. ...

June 16, 2026 · Engineer at the Deep Hole

Vibration Analysis for Deep Hole Drilling Machine Health

Vibration analysis measures the vibration at key points on the machine and identifies the frequency components. Each machine component rotates at a specific speed and produces vibration at a specific frequency. I have been running a vibration analysis program across twelve deep hole drilling machines for four years, and it has fundamentally changed how I approach maintenance. Measurement Points and Equipment I use a handheld vibration analyzer (Fluke 810 or equivalent) with a single-axis accelerometer that has a 100 mV/g sensitivity. I have standardized on seven measurement points per machine: ...

June 16, 2026 · Engineer at the Deep Hole