Regarding lubricating motors that are not used frequently
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I have a question for everyone. If a motor is operated very rarely, running only about 1,000 hours over a period of ten years or so, how should the lubricant in the motor bearings be replenished? We used to apply lubricant very infrequently; recently we want to disassemble the motor to check the lubricant in the bearings or replace them. Since the motor is functioning normally, we’re wondering whether it’s necessary to disassemble it for inspection. Are there any guidelines regarding bearing maintenance for motors that are operated for short periods but over a long time?
Generally, motors require lubrication every few thousand hours of operation. But if they don’t run that long over the course of many years, how should the bearings be maintained? I’m hoping there are relevant guidelines for this
So does it need to have the motor removed to replace the bearings after such a long time?
It’s not necessarily just the bearings; it’s probably the lubricant inside that has gone bad
It is recommended to turn the shaft regularly and apply lubricant at the same time, ensuring proper and even lubrication during such operations.
I also think it might be possible to avoid removing the grease altogether; I’ve seen online that it’s possible to use air pressure to blow out the existing grease and then apply new grease, but I’m not sure if that works
If regular machine balancing is not carried out on a regular basis, it is recommended to perform dynamic balancing of the rotor before making a decision. As for whether the bearings need to be replaced, there is no fixed standard; however, it is advised to check the bearing clearance using a feeler gauge, as there are standards for that.