Open gear lubrication has some choices

There are many classification methods for gears and gears, such as the gear profile of the gear, the shape of the gear, the relative position between the two gear axes, and the external structure classification of the gear transmission.
In the open gear transmission, it is easy to fall into the external medium such as dust and debris, which causes oil pollution, and the open gear is prone to abrasive wear. When the split gear is covered with dust, the lubrication requirements of the open gear are the same as those of the closed gear under the same working conditions. Open gear drives typically use high viscosity lubricants, asphaltene lubricants or greases and work more efficiently at lower speeds. There are currently three grades of open gear lubricants, namely ordinary open gear lubricants (CKH), extreme pressure open gear lubricants (CKJ) and solvent diluted open gear lubricants (CKM).
When selecting open gear transmission lubricating oil, the following factors should be considered: 1 degree of closure of open gear; 2 circumferential speed of open gear; 3 open gear diameter size; 4 environment; 5 use of lubricating oil; Accessibility of the gear. In addition to the fact that the lubricant can be recycled in some cases, a lubricating oil pool should be provided.
The lubrication method of open gear transmission is generally full loss type, and any full loss type lubrication system will only have a thin layer of lubricating oil on the surface of its gear. They are often under boundary lubrication conditions because they are added to the tooth surface. The new lubricating oil or grease will be squeezed out due to the pressure of the tooth surface, and the combined effect of the centrifugal force during the rotation of the gear can only leave a thin lubricating oil film on the tooth surface, and then consider the grinding cooperation of the open gear. Therefore, the lubricant must have high viscosity or high consistency and strong adhesion to ensure that a continuous layer of lubricant film remains on the gear surface.