Quick oil injection tooling for bearing

The invention provides a quick oil injection tooling for a bearing. The quick oil injection tooling comprises an oil gun, an oil can and an oil fitting, and the oil can is connected to the oil gun; the oil gun is connected to the oil fitting through an M10 quick coupling, a high-pressure transparent pipe, an M6 quick coupling, an oil injection steel pipe and an oil pipe in sequence, and the frontend of the oil injection steel pipe is connected to the oil pipe through a connector with an inverted gear ring; the rear end of the oil injection steel pipe is connected to the M6 quick coupling through a threaded hole, and the depth of the threaded hole is larger than the length of the connecting part of the M6 quick coupling; the bottom of the threaded hole is provided with a conical transitionpart which is internally provided with a pressure spring fixedly, and a flow limiting ball is arranged between the pressure spring and the connecting part of the M6 quick coupling; and the diameter of the flow limiting ball i