North America | Europe

Mining

Bearing Type

Rexnord, 2-15/16" bore

Conditions

Sand and water contamination. Bearing life 3 months. Speed 850 to 1370 RPM.

Results

With MicroPoly, bearing life has been extended to at least 18 months.

Bearing Type

4- bolt flange bearing

Conditions

Heated material in screw conveyor solidifies if the process is shut down. Bearing failure due to contamination was the primary cause of the shutdown. To remove the material, the screw assembly must be removed and the material must be chiseled out. The process is lengthy and expensive. Bearing life was less than one year.

Results

MicroPoly kept the contaminants out of the bearing. MicroPoly bearings lasted more than 3 years. Cost savings estimated in the tens of thousands.

Bearing Type

MR22 Needle roller bearing

Conditions

Roller chain in mine was wearing prematurely due to excessive solid particulate contamination in the environment. Dirt, grit, and dust was penetrating the needle roller bearings in the chain and causing the bearings to lock up, which increased the chain running resistance and decreased wear life. Chain life was a matter of months.

Results

MicroPoly was installed into the MR22 bearings. The customer discontinued monitoring chain performance after 5 years, but believes the chain ran at least 8 years without replacement.

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