A gearbox is a mechanical device utilized to boost the result torque or modify the acceleration (RPM) of a motor. The motor’s shaft is attached to one end of the gearbox and through the inner configuration of gears of a gearbox, provides a given output torque and speed determined by the gear ratio.
Physical Properties
The physical parts of gearbox construction Gearboxes change from one gearbox type to another, as well as distinctions between manufacturers. Most gearboxes are constructed from steel components such as iron, aluminium and brass. Unlike additional gearbox types, spur gearboxes may also be made with plastics such as polycarbonate or nylon. Apart from the raw materials utilized, the orientation of the gear teeth play a significant role in the overall efficiency, torque and speed of the machine. Straight gear the teeth gearboxes are typically used in low-acceleration applications. These gearboxes could be noisy, and could have lower overall performance. Helical gearboxes are typically used in high-quickness applications. These gearboxes are quieter in operation than straight gear tooth gearboxes, which may improve their overall efficiency.
Types of Gearboxes
There are various types of gearboxes manufactured throughout the world. Among the main variations between person gearboxes is their functionality features. Choosing from the various gearbox types is software dependent. Gearboxes can be found in many sizes, ratios, efficiencies and backlash characteristics. Most of these design elements will affect the performance 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 such as either directly or spiral teeth gears. Directly bevel gears have straight and tapered teeth and are used in applications requiring slower speeds. Spiral bevel gears possess curved and oblique tooth and are found in applications needing high-overall performance, high speed applications.
Physical Properties
Bevel gears are typically made of cast iron, light weight aluminum alloy or other steel materials but vary between producers.
Note: Gears created from steel materials could be noisy when coming 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 used 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 should be in a position to support forces
• Poorly cut tooth may lead to excessive vibration and noise 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 type of innovation provides for a smooth and tranquil operation. Gearboxes using helical gears can be applied in high horsepower and efficient applications.
Physical Properties
Helical gears are usually made of cast iron, aluminum allow or iron materials but can vary greatly depending on the manufacturer.
Note: Gears created from steel materials could be noisy when coming into connection with other gears and also 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
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 created with straight teeth mounted on a parallel shaft. The noise level of spur gears is usually relatively high because of colliding tooth of the gears which make spur gear teeth prone to use. Spur gears come in a range of sizes and equipment ratios to meet applications requiring a specific speed or torque result.
Physical Properties
Spur gears are usually constructed from metals such as for example metal or brass, and plastics such as for example nylon or polycarbonate. The materials used to create spur gears may vary depending on the maker.
Note: Gears created from steel materials could be noisy when getting into connection with other gears and in addition make them prone to wear.
Applications of Spur Gears
Spurs gears are found in applications requiring a decrease 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 are able to withstand high shock loads, low in sound level and maintenance-free but are less efficient than other equipment types. Worm gears can be utilized in right position configuration. The worm gearbox configuration allows the worm to carefully turn the gear with ease; however, the apparatus cannot convert the worm. Preventing the gear to go the worm can be utilized as a braking program. When the worm gearbox is not active, it is in a locked position.
Physical Properties