Exploring the Efficiency of Helical Spiral Bevel Gear Motors

Helical Inline Gear Motors are a unique solution, distinct from worm or bevel gearbox systems. They serve as an efficient alternative to spur gears where the teeth are parallel to the gear axis. In an inline application, the choice could be either spur or helical gears. However, an inline motor typically offers quieter operation and can handle higher loads compared to motors using spur gearboxes.

Despite being potentially more expensive initially and necessitating consideration of axial thrust, the flexibility offered by the variable helix angle ranging between 15 to 30 degrees is a strong advantage. Helical gears are widely employed in in-line and parallel shaft applications.

The Superiority of Helical Gears

Helical gears are known for their ability to produce a rolling action, which results in quieter operation with less vibration compared to spur gears. The reduced friction and increased teeth engagement as the teeth roll across each other are additional benefits.

Comparative Analysis of Gearing Systems

Gearing systems are available in a variety of types.

  • Spur gears: Some manufacturers opt for spur gears over helical, but these tend to offer less surface contact resulting in more noise and lesser torque transfer.
  • Planetary gear systems: These systems, in which one gear is completely within the other, are also prone to noise. They require grease lubrication and are usually made of expensive materials to maintain longevity and bearing integrity.
  • Internal gearing: A simpler variant, it can only be used with parallel shaft. It suffers from similar issues as planetary gear systems.
  • Hypoid gearing: This is akin to bevel gearing, but with non-intersecting gear axes. The sliding action can generate high levels of heat and alignment is crucial.

Why Choose WLY's Helical Spiral Bevel Gear Motor?

At WLY, we prioritize quality, service, and affordability. Our helical spiral bevel gear motors are engineered for top performance and durability. They are designed for quiet operation, less vibration, and high load-bearing capacity, making them an excellent choice for various applications.


We encourage you to explore our top-notch products and reach out to us for any inquiries. Our expert team is ready to assist you in finding the best gear motor solutions for your specific needs.

Common Questions About Helical Spiral Bevel Gear Motors

1. What is the main advantage of using a helical spiral bevel gear motor?

The main advantage of using a helical spiral bevel gear motor is its quieter operation and ability to carry high loads.

2. Can helical gears be used in inline and parallel shaft applications?

Yes, helical gears can be used in both inline and parallel shaft applications.

3. What is the difference between helical and spur gears?

The main difference is that helical gears provide a smoother and quieter operation than spur gears due to their teeth rolling across each other, which also reduces friction.


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