A gearbox is a mechanical device utilized to raise the output torque or change the acceleration (RPM) of a engine. The motor’s shaft can be attached to one end of the gearbox and through the inner configuration of gears of a gearbox, offers a given output torque and speed dependant on the gear ratio.
Physical Properties
The physical elements of gearboxes vary from one gearbox type to some other, as well as distinctions between manufacturers. The majority of gearboxes are made of steel components such as iron, aluminium and brass. Unlike additional gearbox types, spur gearboxes can also be made with plastics such as for example polycarbonate or nylon. Other than the raw materials used, the orientation of the apparatus teeth play a major role in the entire efficiency, torque and velocity of the system. Straight gear the teeth gearboxes are typically found in low-acceleration applications. These gearboxes could be noisy, and could have lower overall performance. Helical gearboxes are typically used in high-acceleration applications. These gearboxes are quieter in operation than straight gear teeth gearboxes, which may improve their overall efficiency.
Types of Gearboxes
There are numerous types of gearboxes manufactured throughout the world. Among the main differences between individual gearboxes is their overall performance features. Choosing from the various gearbox types is gearbox construction application dependent. Gearboxes are available in many sizes, ratios, efficiencies and backlash characteristics. Most of these design factors will affect the overall 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 directly and tapered the teeth and are found in applications requiring slower speeds. Spiral bevel gears have curved and oblique tooth and are found in applications needing high-functionality, high speed applications.
Physical Properties
Bevel gears are usually made of cast iron, aluminum alloy or other metal materials but vary between manufacturers.
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 Bevel Gears
Bevel gearboxes use bevel gears and so are mainly utilized in right position applications with the shafts in a perpendicular arrangement.
• 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 able to support forces
• Poorly cut the teeth may lead to 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 tranquil 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 material but may vary depending on the manufacturer.
Note: Gears made from steel materials could be noisy when coming into contact 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
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 definitely relatively high because of colliding tooth of the gears which make spur gear teeth prone to wear. Spur gears come in a range of sizes and equipment ratios to meet up applications requiring a certain speed or torque result.
Physical Properties
Spur gears are usually constructed from metals such as for example steel or brass, and plastics such as nylon or polycarbonate. The material used to construct spur gears can vary greatly depending on the maker.
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 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 can easily withstand high shock loads, lower in noise level and maintenance-free but are less efficient than various other gear types. Worm gears can be utilized in right angle configuration. The worm gearbox configuration enables the worm to turn the gear easily; however, the gear cannot change 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