What are the lubrication methods of transmission?

Commonly used: 1 splash lubrication, 2 pressure lubrication * * * There are three kinds: there are basically three kinds of lubrication methods for lathe headstock. Of course, some small factories may omit pressure lubrication in order to save costs. 1 Splash lubrication Soak the gear in oil, and when the gear rotates, the oil brought up lubricates the meshing position of the two gears. There is a plunger pump in the pressure lubrication spindle box, and the pressure makes the oil flow along the copper tube to the spindle bearing and drip down to lubricate the bearing. 3 Gravity lubrication The oil splashed on the headstock cover returns to all bearings of the headstock through a groove and drips down to lubricate the bearings.