A gearbox is a mechanical device utilized to raise the result torque or modify the swiftness (RPM) of a motor. The motor’s shaft is usually mounted on one end of the gearbox and through the inner configuration of gears of a gearbox, offers a given output torque and speed determined by the gear ratio.
Physical Properties
The physical elements of gearboxes change from one gearbox type to another, as well as distinctions between manufacturers. Many gearboxes are made of steel components such as iron, aluminium and brass. Unlike additional gearbox types, spur gearboxes may also be produced with plastics such as for example polycarbonate or nylon. Other than the raw materials used, the orientation of the gear teeth play a significant role in the overall efficiency, torque and velocity of the system. Straight gear tooth gearboxes are typically found in low-rate applications. These gearboxes could be noisy, and may have lower overall efficiency. Helical gearboxes are usually used in high-rate applications. These gearboxes are quieter in operation than straight gear the teeth gearboxes, which may improve their overall efficiency.
Types of Gearboxes
There are several types of gearboxes produced throughout the world. Among the main variations 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 elements will affect the efficiency and cost of the gearbox. There are several types of gearboxes which are the following:
Bevel Gearbox
Bevel Gears
There are two types of bevel gearboxes which include either directly or spiral teeth gears. Straight bevel gears have directly and tapered tooth and are found in applications requiring slower speeds. Spiral bevel gears have got curved and oblique the teeth and are found in applications requiring high-overall performance, high speed applications.
Physical Properties
Bevel gears are usually made of cast iron, light weight aluminum alloy or other steel components but vary between manufacturers.
Note: Gears created from steel materials can be noisy when getting into connection with other gears and also make them prone to wear.
Applications of Bevel Gears
Bevel gearboxes use bevel gears and so are mainly utilized in right position 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 must be in a position to support forces
• Poorly cut the teeth may lead to gearbox construction excessive vibration and sound during operation
Helical Gearbox
Helical Gears
Helical gears 
are cut at angles which allow for gradual contact between each one of the helical gear teeth. This kind of innovation offers a smooth and peaceful procedure. Gearboxes using helical gears can be applied in high horsepower and efficient applications.
Physical Properties
Helical gears are typically made of cast iron, aluminum allow or iron materials but can vary greatly depending on the maker.
Note: Gears created from steel materials could be noisy when coming into connection with other gears and in addition make them prone to wear.
Applications of Helical Gears
Helical gears are widely used in applications which require efficiency and high horsepower.
• Oil Industry
• Blowers
• Food and Labeling
• Cutters
• Elevators
Benefits of Helical Gears
• Can 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 the teeth mounted on a parallel shaft. The noise level of spur gears is certainly relatively high due to colliding the teeth of the gears which will make spur gear teeth susceptible to put on. Spur gears can be found in a variety of sizes and equipment ratios to meet applications requiring a specific speed or torque output.
Physical Properties
Spur gears are typically constructed from metals such as steel or brass, and plastics such as for example nylon or polycarbonate. The materials used to construct 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 reduction in speed with high output 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 easily withstand high shock loads, lower in noise level and maintenance-totally free but are less efficient than additional equipment types. Worm gears can be used in right position configuration. The worm gearbox configuration enables the worm to carefully turn the gear easily; however, the apparatus cannot convert the worm. The prevention of the gear to go the worm can be used as a braking system. When the worm gearbox is not active, it is in a locked position.
Physical Properties