Tianji small common sense sharing:

The magnetic powder in the magnetic powder clutch and brake must not be exposed to water, oil or the like. After the magnetic powder is damp, the performance will be unstable, and sufficient attention should be paid to avoid the intrusion of water, oil and other substances into the inside of the magnetic powder clutch and brake. Especially when the reducer and the motor are installed, the oil in the reducer and the motor will penetrate into the inside of the magnetic powder clutch and the magnetic powder brake through the shaft. 

Therefore, the sealing ring must be completely sealed (bearing and shaft).

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