Hub 101
In
order to work, a propeller must spin when driven by the engine's prop shaft,
meaning the propeller must be connected to the prop shaft using a "hub system".
There are basically two different types of hub systems... the round rubber "pressed-in
hub", and the "square hub" style.
Square Hub System
Numerous propeller manufacturers today use a 'square hub' type system. While there are differences between these hub systems in their construction methods and materials used, most are easily interchangeable. If you already have a square-type hub, then all you need is the correct Turbo® propeller for your particular application.
Turbo propellers are designed to use square hubs, and we proudly recommend Guardian SQ-LokTM Hub Systems. The Guardian SQ-Lok hub system is designed for most brands of outboard or stern drive power, from 20hp to 400hp and beyond. Guardian SQ-Lok hubs are designed to take the punishing power and exhaust heat today's modern marine engines deliver. Unlike some other square hub brands, they feature heavy-duty construction with a nylon center core (drive adaptor) with a molded-in interlocking brass spline insert for extra strength and durability. Although they're tough, it's a good idea to always carry a spare hub. They're easy to install or replace with common tools, and come with the necessary hardware, to help get you moving quickly and easily.