Tsubaki’s 7th generation of roller chain improvements offers upgraded performance and reliability through the new PerforMax™ bushing and increased horsepower ratings.
The new PerforMax solid lube groove bushing improves upon all of the benefits of previous curled and solid bushings. Lube grooves, heat treatment, plus incredibly precise dimensions produce a solid bushing worthy to be assembled into Tsubaki chain. Sizes 80 through 140 currently include the Performax Lube groove bushings. Performax bushings are specifically designed with lube grooves to provide extended life by combating wear, which is the most important factor in chain life for these sizes.