FALK WA series tire coupling hub, model 1100WA HUB #3 TL 3535.Specs: Coupling size code: 1100WA; Hub number: 3; Bushing size: 3535 (taper-lock); Outside diameter: 14.04 in; Hub diameter: 9.875 in; Length through bore: 3.56 in; Material: Steel; Bore range: 1-3/16 to 3-15/16 in; Max speed: 2400 rpm; Torque: 15000 in-lb; Net weight: 68.20 lb.