Electric Motor Gearbox Grease

Nlgi 3 is about the consistency of vegetable shortening.

Electric motor gearbox grease. Use of the wrong grease often leads to early electric motor failures. 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 based grease is an excellent grease for electric motors. Specifically designed for plastic and metal gears as found in many ebike motors.

The typical mineral oil viscosity in an electric motor grease is in the range of 500 to 600 sus at 100 f. Electric motors require lubricants with specific characteristics. Like other types of rotating equipment gearboxes rely on lubrication to reduce friction and provide cooling for optimal operation and life. This will help to insure maximum protection and component life.

Nlgi 2 is about the consistency of peanut butter. Wipe grease from the pressure fitting clean dirt debris and paint around the grease relief plug. Mineral oil based grease derived from petroleum is more economical than synthetic oil. 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.

Remove the grease relief plug and insert a brush into the grease relief as possible. Viscosity oil viscosity should be appropriate for the load and speed of the application at operating tempera ture. Lubriplate l0148 098 off white iso 9001 registered quality system iso 21469 compliant 100 cst electric motor bearing grease pack of 10 2 8 out of 5 stars 2 64 87 64. 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.

This will remove any hardened grease. 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. However this thickener is incompatible with most other thickeners. Nlgi viscosity grade is a rating of a grease s consistency.

Lock and tag out the electric motor. Molykote pg 75 high quality german manufactured grease. This prevents foreign objects from entering the grease cavity. Instruct the motor rebuild shop on what grease to use and make sure the grease type is specified on new motor purchase orders.

Some manufacturers don t recommend mixing one brand of polyurea with another. 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. Good electric motor grease.