Gears. Worm Drive 2 Parts – Worm – gear in screw form – Worm Gear – meshes with the worm to create a worm drive Perpendicular drive axes Direction of.

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Presentation transcript:

Gears

Worm Drive 2 Parts – Worm – gear in screw form – Worm Gear – meshes with the worm to create a worm drive Perpendicular drive axes Direction of transmission not reversible Large gear reductions (20:1 – 300:1+) Changes direction of motion 90° Used in: gates, high-performance cars

Spur Gears Simplest and most common gear type Cylinder/disk with radially projecting teeth Teeth are straight and parallel to rotational axis Noisy, teeth under a lot of stress during each repetitive impact Used in: alarm clocks, washing machines, clothes dryers

Crown Gear Teeth project at right angles from the plane of the wheel Reasons for use: – Excellent heat distortion control, High strength, Wear resistance, Noiseless and vibration-free operation, Fixes Misalignment Used in high-stress junctions in cars Animated!

Information Sources Worm Drive – s-equipment/gear5.htm – Spur Gears – s-equipment/gear2.htm Crown Gear – noise-reduction-gears