Fan Bearing Grease

During rotation of a bearing the grease is mechanically worked and a change in consistency may result.

Fan bearing grease.

On some early models like turek friction drive fans a single ball bearing packed with grease was used to suspend the vertical rotor. Nlgi 2 is about the consistency of peanut butter. Using the wrong type can clog up the bearings and ruin the fan oftentimes requiring a full replacement. You want to find 10 15 or 20 weight non detergent motor oil.

On the same note lubricant systems in ball bearing fans which are based on grease channeling can fail slowly over time causing a gradual increase in noise particularly at high temperatures. Stated as a number of hours l10 life indicates the life expectancy with 90 confidence that the bearings will meet the expectation. Able to handle light to moderate loads at high speeds this grease is often used on electric motor bearings for fans pumps and dryers. Proper pillow block and seal selection help avoid bearing problems.

Nlgi viscosity grade is a rating of a grease s consistency. Fans and blowers are simple pieces of equipment yet require a lot of maintenance particularly for bearings. By avoiding three common mistakes when greasing bearings you can predict the right time to grease know how much grease to apply and be confident in the bearing s overall health. It offers a wide temperature range shear resistance corrosion inhibitors and extreme pressure lubrication.

Some primitive fans like belt drive fans and very early electric models used grease packed babbit bearings. Dow molykote g 0010 multipurpose bearing grease is a polyurea thickened material used for electrical motors water pump and fan bearings and dryers. Greases that soften may leak from the bearing cavity. Typical ceiling fans like emerson s use oil immersed ball bearings mounted a race.

Oil lubrication is preferred over grease for bearings. Mistake 1 lubricating is based on time instead of condition. Nlgi 3 is about the consistency of vegetable shortening. Bearings depend on grease to reduce friction levels.

Fan bearing maintenance helps increase longevity and potential to reach the fan bearing s full l10 life. This property is known as the mechanical stability of the grease and is measured in standardized tests astm d217 and or astm d1831. The oil to use in lubricating a ceiling fan s bearings is very specific. Oversized bearings can be lightly loaded and fail.

The higher the speed the more problematic they become. Fan shaft bearing maintenance ball bearings.