Ball mill at the Asarel Medet copper mine.

Pinion bearing damage in ball mill

Using HD measurement technologies, Bulgarian copper producer Asarel Medet AD monitors the mechanical condition of critical equipment in the open-pit mine and flotation plant. This case study deals with the successful detection of outer race damage on a ball mill pinion bearing.

On the non-drive end bearing, the Intellinova online system initially indicated shock pulse levels that varied between green and yellow condition evaluation. This fluctuation was attributed to the operating conditions, with varying loads on the ball mill. Over the following months, bearing condition deteriorated, and when the bearing was replaced during a planned stop about eleven months after the first yellow readings, outer ring damage was verified.

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Case Study
File name/Description Language Size Modified
CS_023B_Ball_mill_Asarel_Medet_BG.pdf English (United Kingdom) 3 MB 9/6/2019
Outer race damage on ball mill pinion bearing in copper mine.

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The Intellinova online systems combine HD measurement technologies with high-performance digital hardware to ensure the earliest possible warning of deteriorating mechanical condition.

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Condition monitoring with High Definition (HD) technologies provides extremely long pre-warning times, thus maximizing the planning horizon for maintenance and repairs.