What Are the Different Types of Gears That Exist Today?

Did you know that the creation of the first gear dates back to Greece during 300 BC? This makes it one of the oldest tool components in all of history. Today, they’re used in a variety of processes, such as product manufacturing and transportation.

Interestingly, many people are unaware that many different types of gears serve different purposes. Let’s explore everything you need to know.

Spur Gears

Spur gears are one of the most common types of gears.

They are simple to manufacture and have straight teeth that mesh together. You can use these gears in a wide variety of applications, such as in vehicles, machines, and appliances.

Happen to need non-metallic gears? You can check out this resource for an extensive non-metallic gear selection.

Helical Gears

Helical gears have teeth cut at an angle. This gives them more contact area between the teeth, which results in smoother operation. Helical gears are more expensive to manufacture than spur gears but they offer several advantages, including reduced noise and increased strength.

So, they are ideal for use in situations where you need a high amount of structural integrity or as little noise as possible.

Bevel Gears

Manufacturers use bevel gears when two shafts need to be connected at an angle. They have teeth that are cut at a 45-degree angle and are usually used in pairs.

Bevel gears can be either straight or spiral, with the latter offering a higher gear ratio. This is a term that refers to the rate at which the last and first gears in a series rotate. In context, there could be a situation where the first gear rotates four times for every single rotation the second gear makes.

Worm Gears

Worm gears are used when a high gear ratio is needed.

They consist of a worm (a screw-like shaft) that meshes with a gear. Worm gears can have either single or double components and are available in a variety of sizes and ratios.

Planetary Gears

Planetary gears are similar to bevel gears but have more than two shafts. They consist of a sun gear, a planet gear, and a ring gear.

When you need a high gear ratio in a small space, planetary gears are an ideal choice. They are also unique in the fact that they are a series of different gears as opposed to a single type.

Differential Gears

Differential gears allow the wheels in vehicles to rotate at different speeds. They consist of two bevel gears that are connected by a pinion shaft.

The differential gear allows one wheel to spin faster than the other, which enables a vehicle to turn corners. It shouldn’t come as a surprise that they are the best gear for the vehicle manufacturing process.

You Shouldn’t Overlook These Types of Gears

Many different types of gears exist today, each with its advantages and disadvantages. Understanding the different types will help you choose the best gear for your needs.

Looking for other useful information to help you choose the right tools in the future? You can check out the rest of our blog for similar content.

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