Roots blower
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Is it necessary to leave a thermal expansion gap between the outer ring of the rotary vane compressor’s positioning bearing and the positioning gland?
It is essential to follow the device’s user manual, or the installation instructions provided by the device manufacturer. More of them are equipped with positioning. For reference.
Bearings generate heat when operating under load, and it is necessary to leave a certain amount of clearance; the size of this clearance should be determined based on the degree of heat generation and the temperature of the surrounding environment
Overthinking it; as long as the bearing clearance is correct, that’s enough.