An O-ring seal is designed to create a reliable seal between the mating surfaces of the coupling's components. It functions by fitting into a groove and compressing against the mating surfaces when the coupling is assembled, forming a barrier that prevents leakage of lubricants and ingress of contaminants. This seal is necessary for maintaining the integrity of the coupling, ensuring smooth transmission of torque, and prolonging the lifespan of associated equipment by preventing wear and damage due to inadequate lubrication or contamination.Attributes:• Durable under high-pressure conditions.• Ensures leak-free operation.• High temperature tolerance.• Resistant to wear and tear.Applications: An O-ring seal is used in the flexible gear coupling assembly, ensuring a secure seal at the coupling's interface to prevent leakage and maintain operational integrity in the equipment applications.