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Z

Zener diode

A type of diode that behaves like a typical silicon diode up to a precise voltage threshold, called the Zener point. After it reaches the Zener point voltage, the diode conducts in both directions.

Zener point

The voltage at which a diode conducts current in both directions instead of just one.

zero offset

When the plane of the hub mounting surface is even with the centerline of the wheel.