“We replaced the bearings three times and it still makes noise”…Sound Familiar?

If you are responsible for the reliability of HVAC air handling equipment, you probably have units that rumble and make more noise than they should.

Most often this is due to the shaft to bearing fit up. Improper bearing installation can cause the bearing’s inner ring to wear a groove into the shaft.

Once the shaft is grooved it’s only a matter of time before you realize that repeated bearing changes is not the solution. You also know that shaft replacement is difficult and very expensive.

HI-TEK specializes in shaft repair of all rotating machinery. (more…)