A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The coupling connects the Electric Motor to the Pump.
The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both.
A tyre coupling is an elastic coupling and consists of a flexible element—the tyre—and two coupling halves, also referred to as the hub or flange. The coupling half is made from cast iron and is available in both pre-drilled and clamping bush variants for quick installation and removal.