recorder play bldc motor running low noise:

　　Due to the simple structure of the brushless motor for DC recorder playback, the parts can be precisely matched and installed, the operation is relatively smooth, and the running sound is below 50db. Many medical equipment uses the brushless motor for DC recorder playback due to the quiet performance of the DC recorder. 

　　The traditional motor needs to replace the carbon brush, which cannot be sealed, and the wear of the carbon brush causes friction noise. The noise is generally above 60db, which cannot meet the requirements of high-quiet equipment. Brushless recorder playback without brushes The brushless motor provides high durability.

　　For brushless recorder play bldc motors, the brushes and commutators wear out due to the continuous moving contact, and sparking may occur on contact. In particular, these sparks are usually generated when the brushes pass through the gaps in the commutator, and the strong sparks can cause electrical noise. If a brushless recorder play bldc motor is designed to take electrical noise into consideration, a brushless motor is preferable. The lack of sliding contact also solves the problem of commutation sparks, allowing it to be used in explosive environments.