The first is our common lubrication method for the chain of household machinery, that is, to brush the chain regularly with an oil pot or brush.
The second is to drip oil into the gap between the chain plates through the oil cup through the oil pipe for the mechanical chain that is inconvenient to brush oil with tools.
The third kind is oil bath lubrication or splash lubrication, which uses a sealed transmission box to immerse a part of the chain into the oil, and the latter is splashed by the oil pan.
The fourth is to use the oil pump pressure for oil injection lubrication, which is the continuous oil supply from the oil pump to the chain, so that the circulation plays the role of lubrication and cooling.
