Which has a better deceleration effect, the cycloidal pinwheel reducer or the worm gear reducer?

Simply speaking of the "deceleration effect" (reduction ratio range+transmission efficiency+load-bearing capacity), the cycloidal pinwheel reducer is superior to the worm gear reducer in all aspects; But worm gears have irreplaceable advantages in self-locking performance, low noise, and vertical installation.

1、 Comparison of core parameters (deceleration capability)

1. Reduction ratio range

Cycloidal pin wheel reducer

Single level: 9~87

Dual level: 121~5133

Level 3: up to tens of thousands

Advantages: Wide speed ratio coverage, single stage can achieve super large deceleration

Worm gear reducer

Single level: 10~80 (ordinary), up to about 100

Multi level: Limited, usually not exceeding 200

Disadvantages: efficiency drops sharply at high speed ratios, multi-level uneconomical

2. Transmission efficiency (energy utilization rate, the most critical "deceleration effect" indicator)

Cycloidal reducer

Single level: 90%~95%

Double level: about 88%

Principle: Rolling friction, almost no sliding loss

Worm reducer

Ordinary (long): 60%~80%

Self locking type (single head):<50%~60%

Principle: Sliding friction, high heat generation and loss

3. Load bearing and overload capacity

Cycloidal pin wheel reducer

Simultaneous meshing of multiple teeth (more than 1/3 of the teeth participate in meshing)

Strong impact resistance and overload capacity, suitable for heavy loads and frequent start stop operations

High output torque and good rigidity

Worm gear reducer

Limited line contact and load-bearing capacity

Not resistant to impact, prone to wear and tear, limited power due to heat generation

4. Volume and Structure

Cycloid pinwheel: coaxial structure, small volume (more than 1/3 smaller than gear machines of the same power)

Worm gear: 90 ° staggered shaft, large volume, high axial force

2、 Key characteristic differences

3、 Selection conclusion (which one is "better")

1. Priority should be given to scenarios with cycloidal pinwheels (for the vast majority of working conditions)

Requires high efficiency, energy saving, and long lifespan

Continuous operation, heavy load, and impact load

High speed ratio+small volume, coaxial installation

Mainstream industrial equipment for metallurgy, mining, transportation, mixing, lifting, etc

2. The scene where the worm gear and worm gear must be selected

Need self-locking (to prevent reversal, such as elevators and winches)

90 ° vertical transmission, space allowance

Ultra low noise requirements

Places with light load, intermittent work, and insensitivity to efficiency