time to change a bull gear on a ball mill

May 22, 2019 Figure 4. Bull Gear and Camshaft Idler Gear Lubricating Oil Hole Locations. These two holes are drilled into a main oil gallery. An internal oil passage, cast into the bull gear and camshaft idler gear hub relief at the rear of the hub indexes with these two oil holes to supply oil through a drilled passage to the two roller bearing assemblies.

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