Air-Drive’s Patented Hub/Locking System
Air-Drive’s patented hub/locking system delivers 75% more torque than conventional rolled-over or peened hub attachments. You see a dramatic improvement in mechanical power transmission from the drive motor shaft to the fan blade assembly.
Hubs are supplied in either aluminum or nickel plated steel material with steel, cup point socket set screws for securing to motor shaft.
Options available include: torx drive set screws, nylon patchlocks, and dual cross drilled holes and set screws.
Of course many of Air-Drive’s fan blade designs are available without hubs for mounting on threaded shaft unit bearing motors with standard unit bearing motor hole pattern.