worm reduction gearbox have two main configurations

worm reduction gearbox have two main configurations: in-line and right angle which use different types of gearing. In-line models are commonly made up of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic wave generators. Right angle designs are typically made with worm gearing or bevel gearing, though hybrid drives are also available. The type of application dictates which industrial gearbox design will best satisfy the requirements.