What are the considerations for selecting gear grease for speed reducer motor?

The quality of the grease directly affects the normal operation, working life and noise level of the micro gear motor. Different greases are used for different gear motors, so what are the characteristics of the grease used for miniature gear motors? We will briefly introduce them next.

1. Anti-wear ability of grease

Anti-wear ability refers to the oil film that the oil keeps between the moving parts. The ability of adding some active substances with sexual molecules in gear oil can mention its oiliness. The sexual end of the oily agent will produce adsorption with the oxides on the metal surface to form an oily film, and the oily agent can form a metal lubricating film with the oxides on the metal surface to strengthen the lubricating effect of gear oil.

2. Viscosity characteristics of grease

The viscosity of the lubricating oil in the miniature gear motor will decrease with the increase of temperature, the smaller the proportion of this decrease, the better the viscosity, the better the viscosity of the gear motor lubricating oil changes with the temperature, such as the viscous temperature characteristics of the lubricating oil grease is not good, then the viscosity of the miniature gear motor will be too big when it starts, it is not easy to start, so the viscosity of the gear reducer lubricating oil is one of the important characteristics, the viscosity has a great influence on the formation of the oil film The lubricating oil can effectively prevent gear and bearing damage and reduce the risk of mechanical operation noise and oil leakage.

3. The fluidity of grease at low temperature

When the gear reducer works in low temperature environment, the viscosity of the lubricating grease will increase, making it difficult to obtain sufficient lubrication and the low temperature starting torque will increase. Therefore, it is important to maintain the required fluidity at low temperatures.

4. Stability of thermal oxidation

If the tiny reducer motor is operated under difficult conditions, oxidation will accelerate and viscosity will increase under the catalytic action of air, moisture and metal. This will result in insoluble and corrosive compounds and gums, asphaltenes, etc. To prevent oxidation of the lubricant, antioxidants can be added to the lubricant.

5. Corrosion and rust resistance

The anti-rust coating of the miniature gear motor can shield the gears from rust and corrosion and improve performance and service life. Moisture in the air will inevitably condense into water mist when the miniature gear motor is in operation, so the lubricating grease should contain anti-rust additives such as sulfur salts or fatty hydrochloric acid.

The above is to introduce you to the geared motor selection of gear grease considerations, I hope it will help you, more related information welcome to consult us at any time