Elevated Bearing temperature on Falk Gearbox

Maybe these guys can help:Falk USA

Thanks for your help

Not much help, I know.

You've described the symptoms well compared to some who come here, maybe someone else can help.

Good luck.

Any time you have moving parts with problems I suggest using an ultrasound device such as ( usual disclaimer) UE or SDT. Compare bearings for sound and the DB level. It will not fix the problem but will give great insight into the issue. You will easily hear the noise level and if you are well trained can even determine what part of the gear box is making the noise thus causing the heat. I have saved employers hundreds of thousands of dollars by using this kind of diagnostic equipment. It is also important to trend your equipment in the prescribed manner the savings are usually appreciated.

Lets us know what you find. Others have given very good advise. The use of Ultra Sound is a very good way to get at the bottom of a lot of issues fast. Also using vibration. But, viberation takes somone with a good skill set to do.

"We have 2 drives for this conveyor, using same gearbox specs", please elaborate this.

Do you have two drives, two gear boxes of same model and size?

If that be the case, may be one is loaded more than the other. Try interchanging them as to ensure 'load sharing' is the problem or not.

Re: Falk Alignment Free Drives

1/ Do you have a primary and secondary pulleys or are the drives on either end of a single pulley? If so, it is possible that the load sharing is not setup correctly.

2/ Did you have to turn over one of the gearboxes so one is LH Drive, ie:- running with the opposite direction on the input shaft and the other running in the RH Drive orientation?

3/ Was the oil pump changed over to run in the coeerct direction to lubricate at full flow?

For 2/ & 3/ Reason is that I had this scenario and the 2 gearboxes setup identically had been sent and one had to be inverted to fit the setup. ie:- The DipStick, Oil Filler, Oil Pump and Filter and mounting feet had to be turned around, (re-orientated).

4/ Does one have an Anti Run Back adaptor? This could be binding although this should have been obvious by noise.

5/ If your system is fitted with fluid couplings are both filled with equivalent levels? If not this will make one gearbox work harder than the other.

A better layout of how the drives are setup would make a better solution to the issue easier to address.

TECMATE

Have you investigated what changed since the temps were OK and now? Did loads on the conveyor change in some way?

(Can somebody suggest what might have gone wrong here?)

Yes I suggest, It may have been over-greased ( did manual greasing). Check the maintenance records, you may find this is correct.

The number-one cause of failure in any mechanical application is due to contamination.

The first failure is that the reason for a temperature of 105[units?] being too high is missing.

What was the outcome of the telephone conversation with Falk? Do state it, for it may help another CR4 user who follows these footsteps.