1. Fine teeth: The fine teeth of automotive grease fittings are mainly used for injecting lubricating grease into smaller parts or compact spaces. Fine teeth can more accurately control the flow of grease and lubrication location, to ensure that the grease can accurately reach the parts that need to be lubricated. For example, some small parts inside the engine or compact parts of the drive train need to be precisely lubricated with a fine tooth grease nipple.
2. Coarse Threaded: Coarse threaded grease fittings are primarily used for injecting grease into larger parts or wide open spaces. The design of the coarse tooth grease nipple allows grease to flow quickly into the lubrication point, saving time and increasing efficiency. For example, relatively large parts such as axles, steering components and chassis components can be lubricated more quickly with a coarse tooth grease nipple.
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In addition to fine and coarse teeth, automotive grease fittings can be designed in other shapes and sizes for different needs. For example, some grease fittings are curved to better accommodate the lubrication needs of specific components; others can be rotated to facilitate lubrication at different angles. In addition, with the development of technology and changes in vehicle design, some new types of lubrication systems have appeared, such as automatic lubrication systems, which can automatically adjust the supply of lubricating grease according to the vehicle's working conditions and needs, providing a more intelligent and efficient lubrication solution.
In summary, the reason why automotive grease fittings are designed with fine and coarse teeth is to accommodate the lubrication needs and characteristics of different parts of the vehicle. This design ensures that the lubricating grease can accurately reach the parts that need lubrication and provide effective lubrication protection. At the same time, with the continuous development of technology, automotive lubrication systems are constantly improving and innovating to provide better solutions for vehicle operation and maintenance.