## Case Study Grinding Mill Bearing Failure

supported grinding mills up to the largest sizes SAGball mill circuit incorporating pebble crushers and a POLYCOM highpressure grinding roll SAG and ball mill for gold ore grinding One of three SAG mills with 975 m diameter and 2 x 4000 kW drive power These mills operate in conjunction with ball mills for iron ore grinding in Iran Jan 01 2016 Grindability index for the ball mill 120 kWht Product size from the ball mill 150 m Determine the size of the ball mill operated in closed circuit Solution Step 1 The discharge from the rod mill is the feed to the ball mill Therefore in this case the work W will be W 120 10 1 150 1 1000 kWh t Step 2 Corrections to the work index value Square profile 5 flute variable pitch end mill engineered to reduce harmonics and increase feed rates and intended to provide outstanding performance and high temperature resistance in a wide range of ferrous materials Offers proven performance and extended tool life in stainless steels high temp alloys and hardened steels up to 65 Rc

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