How much gear oil should be added! ! ! ! ! ! !

If the oil quantity is judged when the reducer is running, there is a big gap with the actual oil quantity. It is suggested to measure the oil quantity when the reducer stops, and add a proper amount of worm gear reducer lubricating oil. Worm gear reducer manufacturers generally have instructions to specify the oil amount of worm gear reducer, and the oil amount should be added to 2/3 of the oil window.

Be careful not to add lubricating oil when the worm gear reducer is running. Because during the operation of the worm gear reducer, the internal gear or worm wheel drives the internal lubricating oil to run together, if we judge the oil quantity of the worm gear reducer in this case, it may be full, less than 2/3 of the oil window, or even no lubricating oil.

Conditions of use

The contact area between gears is very small, basically linear contact, but there are both rolling friction and sliding friction during the movement, so the working conditions of gear oil are very different from other lubricating oils. Because the contact area between gears is small, it bears great pressure. The tooth surface pressure of some heavy machinery reducer gears reaches 400- 1 000 MPa.

The hyperbola gear in automobile transmission device has worse service conditions and greater load, and its contact pressure can be as high as1000-4 000 MPa. Under such high pressure, lubricating oil is easy to squeeze out from between teeth, which is easy to cause scratch and wear of tooth surface. Therefore, gear oil should have the performance of making the tooth surface in the state of boundary lubrication and elastic hydrodynamic lubrication under high load.

Proper viscosity is the main quality index of gear oil. High viscosity has great bearing capacity, but too high viscosity will also bring difficulties to circulating lubrication, increase the motion resistance of gears, and cause power loss due to heat. Therefore, the viscosity should be appropriate, especially the oil of extreme pressure antiwear agent, whose load resistance mainly depends on extreme pressure antiwear agent, and the viscosity of this kind of oil should not be too high.

It should have good thermal oxidation stability, good wear resistance, load resistance, good foam resistance, good emulsification resistance, good rust resistance, corrosion resistance and good shear stability.

In addition, there are other performance requirements, such as good low-temperature fluidity, adaptability to sealing materials, storage stability, adhesion of open gear oil and so on. ?

Refer to the above content: Baidu Encyclopedia-Gear Oil