FAG Bearings (especially rolling bearing) comprise structure with a cage or without cage. And the large-scale bearing requiring a larger load capacity is usually without the cage. Most of small and medium-sized rolling bearings have a cage.
We all know,the cage is also involved in the course of bearing processing , and what kind of role does a cage play in the bearing?
The cage's function as follow:
1.to guide and drive the rolling body in the right rolling raceway;
2.Cage separate the rolling body with equal distance, making it in the circle of raceway ,so as to prevent mutual collision and friction when it works.
3.Intergrate the rolling body and ferrule together in the separation-bearing ,so as to prevent rolling off.
Bearing is known as the window ,it is used to isolate and guide the rolling body, Pocket windage make the cage have a certain amount of activity in the axial and radial direction, the total radial activity is called cage space.
There are many struture type in the roller cage ,and their shape is complicated.There are so many pockets in the cage. Pocket shape are maybe round, oval, rectangular and tooth type, and so on, the size is bigger than the rolling body, the difference is the Pocket windage, and sometimes the connect segment between imported rolling cage’s window is called lintel which connects to maintain and increase the intensity of cage.