MULTIS HYDRO MJ770 Series is a typical model used in machine tools. Its floating sealing with casing makes the installation and repairment easier, and its bearingless structure isn’t affected by the rotation limit of the bearings. Using the cracking method of our own patent, it operates and guarantees excellent work even in high-speed Dry-Running and high-pressure coolant. The standard seal face is composed of ‘Silicon Carbide‘ vs ‘Silicon Carbide‘.