There are many kinds of retaining Wahser: Retaining Rings For Shaft ("E" type Rings/Lock Washers), Retaining Rings For Shaft,Retaining Rings For Bores, etc. These are more commonly used, and there are many different rings that are not introduced. Here are the functions of these rings:
1, "E" type Rings/Lock Washers(Retaining Rings For Shaft) GB896/DIN6799: also known as the open card, E type card, the main function is to limit the position, generally used in the bearing of the machine for axial positioning.
2, Retaining Rings For Shaft: also called shaft card, outer card, used to fix the parts of the hole like movement, to prevent unnecessary axial movement of the bearing.
3, hole with elastic stop ring: installed in the round hole, used as a fixed parts of the axial movement.
