US Patent 9381392 Weight plate locking hub

Implementations of the present invention relate to devices, systems, and methods for the safe and efficient use of exercise equipment and, in particular, weight training equipment. A locking hub for weight training equipment may include a first hub and second hub, the first hub and second hub having a sleeve located therebetween. The first hub and/or second hub may hold one or more pads adjacent the sleeve. Rotation of the sleeve relative to the first hub and/or the second hub may compress the one or more pads to force the pads radially inward against a weight bar, substantially restricting movement of the locking hub relative to the weight bar.