runners
Movable parts of the turbine that transmit the movement of the water to the shaft to which they are attached to turn the rotor.
bucket ring
Disk housing all the turbine buckets that activates the runner.
Pelton runner
Type of runner that is suited to high water sources (usually over 1,000 ft) and low flow rates.
coupling bolt
Element made up of a nut and a bolt that attaches the runner to the shaft plate to transmit its movement to the runner.
bucket
Small bucket that is attached to the turbine’s runner; water enters it to turn the wheel.
Kaplan runner
Type of runner that is suited to low heights of water (usually between 30 and 200 ft) and variable flow rates.
runner blade
Movable part that is fixed to the hub of the runner; it turns through the action of water power on it.
hub
Part of the runner that holds the shaft; the runner blades are attached to it.
Francis runner
Most common type of runner that is suited to average heights of water (usually between 100 and 1,000 ft).
blade
Stationary curved plate on the turbine’s runner; it receives the thrust of the water to turn the runner.
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