Defend your chain’s bearing area with the Tsubaki SJ3 Sealed Joint Chain. Tsubaki’s patented technology impedes the infiltration of aggressive fine and sticky particulate. This greatly reduces the risks of premature elongation, joint lockage and/or dry cavitation, allowing for more effective chain performance and extended life. Made in the USA, the SJ3 chain utilizes a combination of three distinct seals to hinder infiltration without compromising performance. Find out more.