Bearing maintenance 2
2. Stop inspection
It is important to regularly check the bearing seals to maintain the bearings in optimal condition. The most favorable inspection time is arranged during the period of regular downtime inspection. Prior planning and knowing the bearing model and bearing spare parts are usually done by inspection.
2.1 It is important to keep bearings and lubrication clean.
Before inspection, clean the surface of the machine, and then remove the parts around the bearing. The oil seal is a very fragile part, so it needs to be carefully disassembled. Do not apply excessive force, and then carefully check the oil seal and its surrounding parts. If there are any symptoms, be sure to replace them. Poor oil seals will cause bearing damage. Damaged and severe equipment downtime.
2.2 Checking the lubricant
Apply a little bit of lubricant and rub it between your two fingers. If there is any contamination, you can feel it, or apply a thin layer of lubricant on the back of your hand, then seal it for inspection.
2.3 Change lubricant
After the oil-lubricated bearings are drained of the old oil, if possible, refill with fresh oil and let the machine rotate at low speed for a few minutes. As much as possible, the engine oil collects the remaining pollutants, and then the oil is drained. It is best to filter the engine oil before use.
Grease-lubricated bearings should not be used in the replacement of grease when it is used to avoid contact with cotton to any part of the bearing, because these residual fibers may be wedged between the rolling elements and cause damage, especially It is the application of small bearings that need to pay attention to this problem.
2.4 Covering exposed bearings
When inspecting the bearings, never expose the bearings to contamination or moisture. If work is interrupted, the machine should be covered with greased plastic sheet or similar material.
If the unshielded bearing is to be cleaned without disassembly and inspection is possible, it should be cleaned with white spirit with a coating brush, and then wiped dry with a lint-free cloth or compressed air (Be careful not to start the bearing assembly to rotate).
Use a small mirror and a probe similar to that used by dentists to inspect the bearing's track surface, retainer, and beads. If the bearing is not damaged, relubrication should be performed according to the lubrication instructions provided by the machine manufacturer.
Do not clean bearings with sealed caps or dust; just wipe their outer surfaces. If the bearing is damaged, it needs to be replaced. It is much more economical to replace bearings during regular downtime maintenance periods than the cost of sudden downtimes due to bearing damage.