The Different Types of Gearboxes

There are two main categories of gearbox provided by Parvalux. Right Angle Gearboxes which are designed to transmit power at a 90-degree angle, which makes them ideal for small spaces or where a change in direction is needed. In-line Gearboxes on the other hand provide a linear power transmission, which is suitable for applications where a straight-line configuration is the requirement. Within these two categories are three types of gearbox:

• Planetary Gearboxes – Planetary gearboxes are known for their compact design, high torque output, and smooth operation and are comprised of a central “sun” gear surrounded by multiple smaller gears (planets). These motors are used across industries including rail transportation, precision machinery, robotics and materials handling. Their compact design and ability to handle high loads makes them suitable for applications where space is limited, or a high level of precision is required in the motion control systems.
• Spur Gearboxes – These are the most common form of gearboxes used and are simple yet efficient. They use parallel shafts with teeth that project radially, and are meshed together. They are normally used in power station machinery, materials handling equipment and pumps. They are low cost, small in size and have high torque ratios.
• Worm Wheel Gearboxes – Worm wheel gearboxes involve a worm screw (a threaded shaft) that meshes with a gearwheel. They are often used for applications requiring high torque and have a compact design. They are low noise, maintenance-free, high precision and have a right-angled configuration. They are used across industries including materials handling, construction, automotive and for medical equipment.

Whilst there are various suitable applications for each type of gearbox above, the material can make a big difference to the environment they would be best suited to. The choice of materials for gearboxes, depends on various factors such as the application requirements, operating conditions, and budget considerations. Bronze gearboxes are strong and therefore stand up well to wear and tear making them very durable. They are particularly suited for machinery which will be expected to operate in harsh environmental conditions and are therefore popular in the marine and shipbuilding industries on applications like propulsion systems and winches. Composite gearboxes are, as the name would suggest, made from a combination of materials which often include polymers which can be a cheaper option but without compromising on strength and weight. Composite gearboxes are ideal for industrial machinery. Steel gearboxes are perfectly suited for heavy-duty applications where high torque and wear resistance are vital. They have a number of applications across industries due to their versatility including mining and construction, aerospace and the food industry. It’s important to note that material selection depends on the specific needs of the industry and application. It’s vital to take into account factors such as load capacity, corrosion resistance, weight, and cost when choosing the right gearbox. Parvalux’s British-made gearboxes are rugged, reliable and designed to suit a wide choice of applications. We manufacture some of the finest small gearboxes in the world, and have been doing so for more than 75 years. If you are looking for the perfect gearbox for your project why not check out the range from Parvalux, which can be used off the shelf or customized. Alternatively if you are looking for a bespoke project then please contact the team.