Which type of lubrication method involves the use of a lubricant being thrown by moving parts?

The splash method of lubrication involves the use of a lubricant that is propelled or thrown by moving parts within machinery. In this method, rotating components, such as gears or shafts, dip into a reservoir of lubricant, causing it to splash onto other parts that require lubrication. This ensures a consistent and adequate distribution of lubricant to prevent friction and wear, particularly in high-speed or high-load applications.

The splash method is effective because it allows for a self-lubricating system, where the motion of the machinery itself facilitates the lubrication process. It is commonly used in engines and other equipment where traditional oil pumps might not be effective or where the design of the machinery does not allow for a forced lubrication system.

In contrast, the other options do not involve the mechanics of movement to distribute the lubricant. The drip method relies on gravity to let lubricant drip onto moving parts, the mist method utilizes fine spray or mist generated by a specific device to lubricate, and grease fittings require manual application or specific machinery to inject grease directly into components. Each of these methods has its place, but they do not use the mechanical action of the parts to distribute the lubricant in the way that the splash method does.