silica gel for oil film bearing lubrication system: silica gel lubrication system for oil film bearing system dynamic pressure, static pressure, static pressure systems, and hybrid systems. Liquid dynamic pressure bearing rolling friction in a certain speed to form Kun. When the silica gel machine starting, braking or reverse, its speed of change can not guarantee the conditions of liquid friction, limiting, of the use of dynamic pressure bearing. Static pressure by hydrostatic bearing floating bearing journal, the high-pressure oil film formation and speed has nothing to do, at the start, brake, reverse or even at rest, can guarantee the conditions of liquid friction, bearing capacity, rigidity, and can meet any load and speed requirements, subject to the special high-pressure system, high cost. So, at the start, brake, reverse, low speed with a hydrostatic system for the high-pressure oil. The high speed closed hydrostatic system, fuel supply system with a dynamic pressure of the hydro-hybrid system, better results.