Electric Motor Gearbox Grease

Use of the wrong grease often leads to early electric motor failures.

Electric motor gearbox grease.

Nlgi viscosity grade is a rating of a grease s consistency. The grease consistency preferred for electric motors is normally nlgi 2 or 3 with a base oil viscosity of 100 150 cst 40 c. Gearbox manufacturers provide recommendations for the type of lubrication to be used and the typical lubrication intervals but the actual gearbox lubrication requirements depend on the environmental conditions the gearbox is exposed to whether it is. However this thickener is incompatible with most other thickeners.

Suitable for long term lubrication low friction coefficient good lubricity at low temperatures compatible with plastics and elastomers molykote pg 75 is normally only available in 1000ml tins enough to do over 60 motors we now supply handy 30ml. Able to handle light to moderate loads at high speeds this grease is often used on electric motor bearings for fans pumps and dryers. Instruct the motor rebuild shop on what grease to use and make sure the grease type is specified on new motor purchase orders. Nlgi 2 is about the consistency of peanut butter.

The typical mineral oil viscosity in an electric motor grease is in the range of 500 to 600 sus at 100 f. Mineral oil based grease derived from petroleum is more economical than synthetic oil. Among other factors motor and gearbox lubrication programs require understanding and a controlled lubrication approach. Electric motors require lubricants with specific characteristics.

Nlgi 3 is about the consistency of vegetable shortening. Some manufacturers don t recommend mixing one brand of polyurea with another. Specifically designed for plastic and metal gears as found in many ebike motors. This will remove any hardened grease.

Wipe grease from the pressure fitting clean dirt debris and paint around the grease relief plug. When a driven component is required to operate at a speed different than that of the attached motor driver a designer can choose from two basic power takeoff speed reduction increaser methods. Good electric motor grease. Viscosity oil viscosity should be appropriate for the load and speed of the application at operating tempera ture.

This will help to insure maximum protection and component life. Molykote pg 75 high quality german manufactured grease. Lock and tag out the electric motor. The majority of gearboxes tend to be highly loaded and as such require a lot from the lubricant to protect the machine s internal surfaces.

This prevents foreign objects from entering the grease cavity. In this case you must make certain that the grease s viscosity is in line with what the gearbox needs to be properly lubricated as you do not want the viscosity to be too low to build a lubricating film. A polyurea based grease is an excellent grease for electric motors.