Advantages and Disadvantages of Cycloidal Gears, Circular Arc Gears, and Involute Gears
Advantages and Disadvantages of Cycloidal Gears, Circular Arc Gears, and Involute Gears
Various designs of gears have their purposes. They also have their own advantages and disadvantages. The following table lists three types of gear profiles, their respective functional characteristics, and advantages and disadvantages.
| Cycloidal Gears | Circular Arc Gears | Involute Gears | |
|---|---|---|---|
| Capacity | Low transmission capacity | Extremely low transmission capacity | 1. Teeth mesh in a concave manner. 2. Large sliding changes. 3. Extremely large capacity. |
| Operation Features | 1. Uniform motion 2. Noisy |
1. Uneven transmission 2. The noisiest 3. Speed reduction rate increases progressively |
1. Uniform motion 2. Quiet |
| Manufacturing requirements | 1. No. of teeth can be exchanged and still engaged. 2. Classified by cutting tools & the rolling circle. |
1. Tooth No. can't be exchanged and engaged. 2. The specific cutting tool cuts out the exclusive tooth shape. |
1. No. of teeth can be exchanged and still engaged. 2. Cutting tools are classified based on modules. 3. The normal pitch is the same with a pressure angle of 20° and meets the cost. |
| Assembly | 1. High assembly precision. 2. Stringent criteria for gear size |
1. Independent tooth type, not exchangeable. 2. Driving and passive gears can't be exchanged. |
1. Central distance is adjustable. 2. Easy assembly. 3. More flexible requirements for working precision. |
| Others | Thanks to the advance of machining technology, precision may be improved via heat treatment and grinding. |