A gearbox is a mechanical gadget utilized to increase the output torque or alter the speed (RPM) of a electric motor. The motor’s shaft is mounted on one end of the gearbox and through the internal configuration of gears of a gearbox, provides a given output torque and speed dependant on the gear ratio.
Physical Properties
The physical components of gearboxes vary from one gearbox type to another, as well as differences between manufacturers. Many gearboxes are made of steel components such as iron, light weight aluminum and brass. Unlike various other gearbox types, spur gearboxes can also be produced with plastics such as for example polycarbonate or nylon. Other than the raw materials utilized, the orientation of the apparatus teeth play a significant role in the entire efficiency, torque and quickness of the machine. Straight gear teeth gearboxes are typically found in low-rate applications. These gearboxes can be noisy, and could have lower overall performance. Helical gearboxes are typically used in high-swiftness applications. These gearboxes are quieter in procedure than straight gear teeth gearboxes, which may improve their overall efficiency.
Types of Gearboxes
There are various types of gearboxes produced throughout the world. One of the main variations between person gearboxes is their performance characteristics. Choosing from the many gearbox types is software dependent. Gearboxes can be found in many sizes, ratios, efficiencies and backlash characteristics. All of these design elements will affect the performance and price of the gearbox. There are many 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 teeth and are used in applications requiring slow speeds. Spiral bevel gears possess curved and oblique the teeth and are used in applications requiring high-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 manufacturers.
Note: Gears made from steel materials can be noisy when getting into contact with other gears and also make them susceptible to wear.
Applications of Bevel Gears
Bevel gearboxes make use of 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
Advantages 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 result in 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 type of innovation offers a smooth and peaceful operation. Gearboxes using helical gears are applicable in high horsepower and effective applications.
Physical Properties
Helical gears are typically constructed from cast iron, aluminum allow or iron materials but may vary depending on the manufacturer.
Note: Gears made from steel materials can be noisy when getting into connection with other gears and also 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 the teeth mounted on a parallel shaft. The noise level of spur gears is usually relatively high due to colliding the teeth of the gears which will make spur gear teeth prone to wear. Spur gears can be found in a range of sizes and equipment ratios to meet up applications requiring a particular speed or torque result.
Physical Properties
Spur gears are typically constructed from metals such as metal or brass, and plastics such as for example nylon or polycarbonate. The materials used to construct spur gears can vary greatly depending on the manufacturer.
Note: Gears created from steel materials can be noisy when coming into connection with other gears and in addition make them susceptible to wear.
Applications of Spur Gears
Spurs gears are used 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
• Prone to wear
Worm Gearbox
Worm Gears
Worm gears are able to withstand high shock loads, lower in noise level and maintenance-totally free but are less efficient than other equipment types. Worm gears can be used in right angle configuration. The worm gearbox configuration allows the worm to turn the gear gearbox construction easily; however, the gear cannot convert the worm. The prevention of the gear to move the worm can be used as a braking program. When the worm gearbox is not active, it is held in a locked position.
Physical Properties