Which method of chain lubrication uses a disc and centrifugal force?

The method of chain lubrication that utilizes a disc and centrifugal force is known as flinger lubrication. In this system, a disc attached to the chain spins at high speeds. As the disc rotates, the centrifugal force generated causes the lubricant to be flung outward across the chain, effectively distributing the oil evenly along its entire length. This method is particularly effective for chains that operate at higher speeds as it ensures consistent lubrication and can reduce the amount of lubricant needed compared to other methods. The use of centrifugal force in this manner helps to minimize friction and wear, extending the life of the chain while maintaining optimal performance.

The other methods of lubrication do not employ centrifugal force. For example, bath lubrication involves immersing the chain in a pool of oil, while forced lubrication typically uses a pump to deliver oil under pressure. Drip lubrication relies on gravity to deliver oil in controlled amounts, which does not utilize centrifugal dynamics.