Gear Drive Basics

Gears are mechanical devices, designed with teeth specifically shaped to minimize wear, vibration, and noise, while also maximizing a power transmission's efficiency. They are able to reverse the direction of rotation, change the speed of rotation, and transfer rotation to a different axis. This course will describe the purpose, types, performance, and applications of gears.

•Define gear trains and ratios •Identify gearboxes and performance specifications •Differentiate between gear types, including spur, helical, bevel, worm, rack and pinion, and crown gears •Identify additional gear types, including herringbone, spiral hypoid, and planetary •Define clearance and backlash •Describe the role of right angle drives •Differentiate between worm drives, double enveloping worms, and double lead worms •Describe the complications of noise, wear, and friction loss