High temperature fans typically run via three main transmission methods:

1. Direct drive: The fan’s shaft connects directly to the motor’s, for a simple, compact setup suitable for low power and high speed applications.

2. Belt drive: A belt joins the motor and fan shafts, providing speed adjustment abilities for higher power and lower speed usage.

3. Coupling drive: A coupling is installed between the motor and fan, converting the motor’s high speed rotation into the fan’s required low speed rotation. This method allows speed adjustments and works well with large speed differences.

The right transmission method depends on specific job requirements, fan power, and speed. In hot environments, consider the heat resistance of the transmission system, selecting materials and lubrication methods suitable for high temperature work to ensure reliability and stability.