

Block friction ring| Ring-Nub®
Ring-Nub® is an open spherical low-friction ring that withstands very high loads and is available for strings from 3 mm to 12 mm maximum. Ring-Nub offers a unique combination of advantages in terms of performance, durability and ease of use. It's an excellent choice for applications where friction must be minimized and strength maximized. See examples of NUB® low-friction ring applications with textile connectors (textile shackle, loop, erse, lock and hook) in the category PLUG & SAIL .