When the operating temperature is between 80°C – 100°C (176°F – 212°F), oil should be replaced at least every three months. For critical equipment, it is advisable that lubricating oil be analyzed at least every three months to determine when oil replacement is necessary.
What is the best lubricant for electric motor bearings?
Mineral oils are adequate for most electric motor bearing applications. However, synthetic base oils may be required for extreme temperature applications or where longer regreasing intervals are desired. The thickener primarily serves as a carrier for the oil and prevents it from leaking out of the application.
How often should a bearing be greased?
Using the chart and the formula, the bearing only needs 8 grams of grease every 10,000 hours. If your grease gun delivers around 1.35 grams per stroke, that means the bearing needs 6 strokes every 13 months; you could average it out to a stroke every 8 weeks or so.
Can I spray wd40 in an electric motor?
Yes, it can as WD 40 has oil base which can make winding insulation more weaker and can damage your motor. Also, WD 40 is not recommended to be used over electrical contacts.
When greasing a motor the worst thing over greasing does is?
“The high pressure applied from a grease gun can result in grease finding its way between the shaft and inner bearing cap, pressing into the inside of the motor. The result over time is coating of the electric motor windings with grease, which leads to winding insulation and bearing failures.”
Is Lithium grease good for electric motors?
The grease consistency preferred for electric motors is normally NLGI 2 or 3, with a base oil viscosity of 100-150 cSt @ 40°C. … A polyurea thickener system is preferred for most electric motor applications, but grease with an aluminum complex, lithium complex or calcium sulfonate thickener are also good options.
What can I use to lubricate bearings?
While some bearing applications use oil as a lubricant, grease is the lubricant of choice for 80 to 90 percent of bearings.