Worm drives are used in presses, in rolling mills, in conveying engineering, in mining market devices, and on rudders. In addition, milling heads and rotary tables are positioned using high-precision duplex worm drives with adjustable backlash
Worm drives certainly are a compact means of substantially decreasing acceleration and increasing torque. Small electric motors are generally high-speed and low-torque; the addition of a worm drive increases the range of applications that it might be suitable for, specially when the worm drive’s compactness is considered.
Lubrication
Enclosed gears are generally lubricated with oil. The most typical types of oil are rust and oxidation inhibiting, intense pressure, 
compounded, and synthetic. Other styles include grease and sturdy film. Grease can be utilized for worm, planetary, cycloidal, and hypoidal reducers. Common distribution methods are a splash system and a circulating system
Worm Reduction Gearbox Application:
Seals and Breathers
Seals will be used between your gear housing and insight and output shafts to retain essential oil and block dirt. The most commonly utilized type, the radial lip seal, includes a metallic casing that fits in to the casing bore and an elastomeric sealing lip that presses on the shaft. Labyrinth seals will be use for high-quickness applications, and contain a housing with some bands that limit leakage. A breather is usually a plug with a hole that’s mounted in the gear housing to permit airflow and relieve inner pressure.
A gearmotor combines a specific gearset with a electric motor. A motorized reducer resembles a gearmotor except that it’s driven by a separate NEMA C-face motor.
Learn more about worm reduction gearbox here.