A NLGI 2 grade grease is the most commonly used in electric motor applications. ASTM D 3336 oxidation life. require a grease with an EP additive. Dropping Point: The dropping point gives an indication of the temperature at which the grease will melt or the oil will separate from the thickener.
How do you lubricate an electric motor?
Expert advice: When oiling an electric motor, be sure to use oil that’s specifically designed for motors. When oiling an electric motor be sure to use special oil for lubricating electric motors. Other oils could cause excess wear and premature failure.
Do you grease electric motors?
Electric motor bearing greasing requires the motor to be de-energized during the procedure. … Combined with safety issues, proper lubrication can maintain the electric motor reliability. Therefore, a limited amount of grease should be added to the bearing housing periodically with the grease plug removed.
Is WD 40 safe on electric motors?
Yes, WD-40 is safe to use on electronics. It is used frequently to dry out auto ignition systems as it it non-conductive, displaces water, and lubricates the parts without getting sticky. I also use it to clean up and dry out computers and power supplies.
What type of lubricant is used on bearing?
A lithium-based grease, whose base oil is mineral oil, is commonly used as a lubricant for rolling bearings, as it is compatible with the working surface of the bearing.
How often should an electric motor be greased?
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.
Can a bearing be over greased?
Too much grease builds pressure, pushing the rolling elements through the fluid film and against the outer race. The bearing now has to work much harder to push the rolling elements through a mud bog of grease. The increased friction and pressure from too much grease raises the temperature inside the bearing.19 мая 2016 г.
How do you maintain an electric motor?
7 Ways to Ensure Better Maintenance of Electric Motors
- Perform Visual Inspections. A quick visual inspection can reveal some important details about the electric motor. …
- Perform a Brush and Commutator Inspection. …
- Conduct a Motor Winding Test. …
- Check the Bearings. …
- Perform Vibration Tests. …
- Use Infrared Thermography in Predictive Maintenance. …
- Document Everything.
What is the best oil for electric motors?
3-IN-ONE® Motor Oil is a special blend of high-grade oils that’s equivalent to SAE 20 engineered for 1/4 HP and larger motors. The motor oil formulation is ideal for lubricating the moving parts of electric motors.
What is the main purpose of lubricant?
The primary purpose of lubrication is to reduce wear and heat between contacting surfaces in relative motion.22 мая 2013 г.
What are the types of lubricant?
There are 4 types of lubricants: Oil, Grease, Penetrating Lubricants, and Dry Lubricants.
What is the best bearing lubricant?
Bearings in some applications use oil, but grease is the lubricant of choice for 80 to 90% of bearings. Grease consists of about 85% mineral or synthetic oil with thickeners rounding out the rest of the grease volume.