The HM series of capsule slip rings are a type of slip ring that is designed for small and miniature rotating systems. They are available in a variety of sizes and configurations, and can be used to transmit both power and signals. The HM series of capsule slip rings are made with gold-plated contacts, which ensures low contact resistance and long life. They are also designed to be low-noise, which makes them ideal for applications where signal integrity is critical. capsule slip ring