About sealed bearings, at the time of production has been filled with the appropriate smooth grease; About the use of open bearings, sealing equipment is also set up in the host to prevent the leakage of smooth grease. This is a good problem of how much smooth grease is injected into the bearing.
Too little fat injection, easy to form fat deficiency or dry conflict, affect the life. Too much fat injection will lead to high bearing temperature. Smooth grease leakage of many environmental pollution, and the formation of waste. It can be seen that the amount of smooth grease injected into the bearing is as little as possible under the premise of ensuring the abundant smoothness of the bearing.
Bearing should not add too much smooth grease
We know that smooth grease has good adhesion, wear resistance, temperature resistance, rust resistance and smoothness, can improve high temperature oxidation resistance, delay aging, can dissolve carbon, prevent metal debris and oil coalescence, and improve the wear resistance, pressure resistance and corrosion resistance of machinery
The smooth grease in the bearing should not be too much. Smooth fat is not only wasteful, and is harmful. The higher the speed of the bearing, the greater the harm.
The greater the filling amount of smooth grease, the greater the friction torque. The friction torque of sealed bearing is greater than that of open bearing with the same filling amount. In the future, the friction torque will not increase significantly when the filling amount of smooth grease is equal to 60% of the internal space volume of the bearing. This is because most of the smooth fat in the open bearing has been extruded, and the smooth fat in the sealed bearing has also been lost.
With the addition of the filling amount of smooth grease, the temperature rise of bearing improves linearly. With the same filling amount, the temperature rise of sealed bearing is higher than that of open bearing
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