Ball and sleeve bearings in fans: expected life, lubrication intervals, noise signatures, and when replacement beats a new fan.
A double inlet wheel takes air from both sides, roughly doubling airfl...
Read More »
In an external rotor motor the outside spins and the impeller mounts s...
Read More »
A hub that has spent years on a shaft in a damp cabinet does not come ...
Read More »
A roof vent fan that stops usually has a short list of causes, and the...
Read More »
Recent Comments