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Anti-Backlash Spur Gears.

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Anti-Backlash Spur Gears

What are Anti-Backlash Spur Gears?

Anti-backlash spur gears embody the essence of precision and are pivotal in minimising the backlash effect in gear trains and assemblies. These gears are ingeniously designed to reduce backlash, which is the minute gap between meshing gear teeth. When two gears in a mechanism rotate, the slight space where the teeth meet can cause a delay in movement or 'lag'. This is where anti-backlash spur gears shine, offering a spring-loaded solution with their unique anti-backlash gear design. Their structure allows for seamless interaction with other components, ensuring a tight, precise fit that reduces the amounts of backlash between gear teeth to almost nil.

How Anti-Backlash Spur Gears Work.

Consisting of two spur gears that are mounted side by side on an axle with springs that link the two, they pull against each other to pinch the mating gear like a scissor. This pinching motion creates a backlash compensation effect, ensuring that when installed, there's a significant reduction in spur gear backlash.

The magic of Accu's anti-backlash gear design unfolds in their application, finding their niche in scenarios where precision and accuracy are non-negotiable. Think of sectors like aerospace, robotics, or high-precision machinery where even a millimetre of play could be cause for error. For example, in a high-precision telescope, using anti-backlash gears ensures stellar accuracy, eliminating gear play that could otherwise distort the telescope's positioning.

Materials of Anti-Backlash Spur Gears.

Accu's range of materials offers these backlash-free gears the flexibility to suit various environments and project needs. Ranging from aluminium, which provides a lightweight yet sturdy option, to steel and stainless steel for higher durability and corrosion resistance. The material choice impacts the gear's performance based on where it's installed. For instance, in a corrosive environment, stainless steel anti-backlash spur gears would be ideal, providing long-lasting, backlash-free gear operation.

Sizes and Types Available.

The versatility of Accu's anti-backlash spur gears is further highlighted by our range of sizes and types. They come with a pitch circle diameter from 30mm to a substantial 100mm, catering to different industrial needs. With the smallest bore diameter starting at 5mm and going up to 12mm, these gears offer a broad spectrum of applications on different diameter axles. Finally, the module range, from m0.5 to m1, ensures a precise match for various gear assemblies.

Installing our spring-loaded anti-backlash gears is as simple as sliding them onto your designated axle, aligning them with shims and spacers and finally clamping them into place with one of our many grub screws.


Q: What is the backlash in a spur gear?.

Backlash in a spur gear refers to the small gap or play between the teeth of meshing gears. This gap can lead to inaccuracies in gear-driven systems. To take a deep dive, our "What Is Backlash?" article goes into all the detail you'll need to become an expert on the subject.

Q: How do anti-backlash spur gears work?.

Anti-backlash spur gears work by employing a dual-gear system or a spring mechanism to maintain constant tooth engagement. This design effectively eliminates the play or gap between the gear teeth, ensuring precise motion and reduced wear.

Q: What industries use anti-backlash spur gears?.

While there is no one industry, Accu's range is primarily used in aerospace, robotics, and precision instruments where accuracy is critical.

Q: Can these gears be customised?.

Yes, thanks to Accu's custom manufacturing, you can customise these gears in size, material, and specifications for any specific applications you have for your project.

Q: How does material affect gear performance?.

The material choice affects weight, strength, and corrosion resistance, tailoring gears for specific operational environments. For example, aluminium is great for being lightweight and stainless steel is ideal for scenarios that may have high humidity or corrosive elements.

Bespoke Anti-Backlash Spur Gears Manufacture.

High precision, bespoke manufacture of Anti-Backlash Spur Gears to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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