Special metal structure and special heat treatment and unique black coating processes on the ring together ensure:
The ring has a hard and smooth surface which results in improved wear resistance and fatigue strength
The heat treatment processes give a smooth working surface between the ring and traveller with better tribological characteristics (high friction wear resistance) between them. Uni K1 Black show excellent working properties at any speeds.
Lower coefficient of friction as compared to our Uni Ultima+ Rings
Improved matrix structure
Greater resistance to wear with hardness above 1100 Hv
Increase in life of the ring by 15–20% as compared to the life of a normal coated ring
No running in required
Suitable for very high speeds
Suitable for all types of fibres, especially the newer and modern fibres such as Kevlar, Bamboo, Tencel, Modal, Melange, etc.