Sicherungsringe, or retaining rings, are small circular fasteners used to secure components on shafts or in housings. They fit into a groove and prevent parts from sliding off, ensuring stability in mechanical assemblies. These rings come in various types, including external and internal designs, to suit different applications. Typically made from metal or plastic, Sicherungsringe are essential in machinery, automotive, and electronic devices. Their simple design allows for easy installation and removal, making them a popular choice in engineering. Proper selection and installation are crucial for maintaining the integrity of the assembly.