Katayama Chain Tight Master (Automatic Tension Tightener)

No chain maintenance maintenance, no trouble and long service life, high speed realization. With the built-in spring, always maintain proper tension and adjust the chain extension automatically. Set the constant tension to a somewhat weak eyes, lighten the burden of the chain, and at the time of strong vibrations and shocks, with the action of the check groove and action, the spring, the check force acts, shut off the chain jamming To do. Built-in spring has a structure that can adjust pressure by push screw, pressure regulation work is possible even after set or during use.