Read how SAM4 caught a loose cardan shaft coupling within hours of installation on this long-term steel customer’s runout table roll.
The customer installed SAM4 on a new roll. Because the roll and its motor were identical to other rolls SAM4 has been monitoring for years, SAM4 had a solid pool of comparable baseline data in its “fingerprints of failure” library. So when the first measurements for the new roll came in with high values for both the noise floor around the supply frequency and the roll’s rotational frequency—clear indicators for a loose coupling in this customer’s similar rolls—SAM4 instantly flagged the asset for inspection. Two days later the customer confirmed that the cardan joint was loose and replaced it.