A gearbox is a mechanical device utilized to increase the result torque or alter the rate (RPM) of a engine. The motor's shaft is attached to one end of the gearbox and through the internal configuration of gears of a gearbox, offers a given output torque and speed dependant on the gear ratio.
Physical Properties
The physical parts of gearboxes change from one gearbox type to another, as well as distinctions between manufacturers. Many gearboxes are made of steel materials such as iron, light weight aluminum and brass. Unlike other gearbox types, spur gearboxes may also be made with plastics such as polycarbonate or nylon. Other than the raw materials used, the orientation of the apparatus teeth play a major role in the overall efficiency, torque and velocity of the system. Straight gear the teeth gearboxes are typically found in low-rate applications. These gearboxes can be noisy, and may have lower overall efficiency. Helical gearboxes are usually used in high-acceleration applications. These gearboxes are quieter in operation than straight gear teeth gearboxes, which may enhance their overall efficiency.
Types of Gearboxes
There are plenty of types of gearboxes produced throughout the world. One of the main distinctions between person gearboxes is their performance characteristics. Choosing from the many gearbox types is app dependent. Gearboxes are available in many sizes, ratios, efficiencies and backlash characteristics. Most of these design factors will affect the functionality and cost of the gearbox. There are many types of gearboxes which are listed below:
Bevel Gearbox
Bevel Gears
There are two types of bevel gearboxes which include either straight or spiral teeth gears. Directly bevel gears have straight and tapered teeth and are found in applications requiring slow speeds. Spiral bevel gears possess curved and oblique teeth and are used in applications needing high-functionality, high speed applications.
Physical Properties
Bevel gears are typically gearbox construction constructed from cast iron, light weight aluminum alloy or other steel components but vary between manufacturers.
Note: Gears created from steel materials can be noisy when coming into contact with other gears and also make them susceptible to wear.
Applications of Bevel Gears
Bevel gearboxes use bevel gears and are mainly utilized in right angle applications with the shafts in a perpendicular set up.
• Print Press
• Power Plants
• Automobiles
• Steel Plants
• Hand Drills
• Differential Drives
Benefits of Bevel Gears
• Right angle configuration
• Durable
Disadvantages of Bevel Gears
• Axes should be in a position to support forces
• Poorly cut teeth may result in excessive vibration and sound during operation
Helical Gearbox
Helical Gears
Helical gears are cut at angles which enable gradual contact between each one of the helical gear teeth. This type of innovation offers a smooth and peaceful procedure. Gearboxes using helical gears are applicable in high horsepower and efficient applications.
Physical Properties
Helical gears are usually made of cast iron, aluminum allow or iron materials but may vary depending on the manufacturer.
Note: Gears made from steel materials can be noisy when coming into contact with other gears and in addition make them prone to wear.
Applications of Helical Gears
Helical gears are trusted in applications which require efficiency and high horsepower.
• Oil Industry
• Blowers
• Food and Labeling
• Cutters
• Elevators
Advantages of Helical Gears
• Could be meshed in parallel or cross orientation
• Smooth and quiet operation
• Efficient
• High horsepower
Disadvantages of Helical Gears
• Resultant thrust along axis of gear
• Additives to lubrication
Spur Gearbox
Spur Gears
Spur gears are made with straight teeth mounted on a parallel shaft. The noise level of spur gears is relatively high because of colliding teeth of the gears which will make spur gear teeth prone to put on. Spur gears come in a variety of sizes and gear ratios to meet applications requiring a particular speed or torque result.
Physical Properties
Spur gears are typically constructed from metals such as steel or brass, and plastics such as for example nylon or polycarbonate. The material used to create spur gears may vary depending on the manufacturer.
Note: Gears created from steel materials can be noisy when coming into contact with other gears and in addition make them prone to wear.
Applications of Spur Gears
Spurs gears are used in applications requiring a decrease in speed with high result torque.
• Cut-to-Length
• Packaging
• Speed Control
• Construction
• Power Plants
Advantages of Spur Gears
• Cost-effective
• High gear ratios
• Compact
• High torque output
Disadvantages of Spur Gears
• Noisy
• Susceptible to wear
Worm Gearbox
Worm Gears
Worm gears can withstand high shock loads, lower in sound level and maintenance-totally free but are less efficient than other gear types. Worm gears can be used in right position configuration. The worm gearbox configuration enables the worm to turn the gear with ease; however, the gear cannot switch the worm. The prevention of the gear to move the worm can be utilized as a braking system. When the worm gearbox is not active, it is in a locked position.
Physical Properties