•O-rings are small, round, and rubber or silicone-based seals used for various purposes in sewing machines and other equipment.
•One common application of O-rings is in the bobbin cases of sewing machines.
•They provide a secure and tight seal between the bobbin case and the sewing machine, preventing thread from tangling or getting caught during the sewing process.
•O-rings are also used in other machine parts to create a reliable and leak-proof seal, ensuring smooth and efficient operation.
