What are the standards for noise levels of reducer

The noise level standards for reducers vary depending on application scenarios, national standards, and product types. The core universal limit is not to exceed 85dB (A), and the specific classification standards are as follows:

1. General industrial reducer standard

Most of the general industrial reducers in our country require no-load noise to be ≤ 85dB (A), while precision reducers have stricter requirements and need to be controlled within ≤ 70dB (A).

The national standard GB/T 6404.1-2005 requires that the overall noise of the reducer should not exceed 80dB.

The lifting machinery industry standard JB/T 8905.1 requires that the noise level should be ≤ 80dB (A) when the center distance is less than 280mm, and ≤ 85dB (A) when the center distance is between 280-500mm.

2. Special limits for segmented fields

Electric vehicle electric drive reducer: The industry standard QC/T 1022-2015 clearly stipulates that the loading noise at an input speed of 6000rpm should be ≤ 83dB (A). The industry's technical roadmap plans to reduce the maximum order noise at 1m under an input speed of 8000rpm to 65dB (A) by 2030.

Gear reduction motor: Conventional products often produce noise levels above 80dB, which is at the general industrial level. High end precision products can achieve noise levels below 50dB, meeting low-noise scenarios such as medical and electronic applications.

3. Unified testing requirements

All standards require the use of a qualified sound level meter to measure the noise level at a distance of 1 meter from the dividing surface of the gearbox at rated speed in order to obtain effective noise level results.