I have a customer that is updating his vibration monitoring system (very outdated). On a couple of pump bearings they have shaft riders that are no longer functioning and we are looking at an "easy" replacement. This would be done on an outage for control system work, they are not doing a major outage on the equipment.
The though is to replace the shaft riders with a reverse mount proximity probe, the issue is the port they are using for the shaft rider is a 1-UNC where all the probe holders I've found are 3/4-24 and I haven't had any luck finding a sleeve adapter that would work.
Has any one run into a similar situation and found a practical solution?