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Foundry

Bearing Type

SealMaster SFT 35E - 2 bolt flange, 2-7/16" bore

Conditions

Buried in sulfur-contaminated sand. Bearing was contained with an end cap. Temperature 110°F. Bearing life 6 months.

Results

Bearing life is now 12 months and the greasing schedule has been reduced. End cap was eliminated.

Bearing Type

Roller and ball bearings

Conditions

Higher than room temperature and sand contamination caused premature and inconsistent bearing life. The bearings could not be re-lubricated, complicating the bearing life problem further, causing excessive downtime and high maintenance costs.

Results

Bearing life was increased to 6-7 years, substantially improving uptime and reducing maintenance costs.

Bearing Type

Ball bearings, 1-1/2" and 2" bore

Conditions

Higher than room temperature and sand contamination caused premature and inconsistent bearing life. The bearings could not be re-lubricated, complicating the bearing life problem further, causing excessive downtime and high maintenance costs.

Results

Bearing life was increased 3 to 4 fold. Based on an internal cost study, MicroPoly became the standard for these bearings.

Bearing Type

Single row ball bearing, 6212

Conditions

Sand contamination. Speed 150 RPM. Bearing life 1 to 4 weeks.

Results

Bearing life has been extended to 12 months.

Bearing Type

6" wheels

Conditions

Conveyor carries parts through system with the wheels exposed to shot blast process. This causes the wheel cover to come off which allows shot material to enter and destroy the bearings. Manual lubrication was required which caused down time and additional labor costs. Liquid lubricant has caused fires periodically.

Results

MicroPoly is keeping the shot material out of the bearing, even when the wheel cover comes off. The life of the wheels has increased.

Bearing Type

Linkbelt F3 U231N, 2-15/16" flange

Conditions

Sand and steel shot fines contamination. Speed 60 RPM. Bearing life 2 months.

Results

Bearing life has been extended to 11 months.

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