The decision this case can inform
Use this record when temperature or oil-flow alarms detect gearbox damage too late and the plant is selecting measurements tied to the actual failure signature.
Named SKF supplier case with a qualitative operational outcome. No before/after downtime, alarm-performance, or economic series is published.
What the public record actually establishes
- F1
Two grinding-mill gearboxes failed within a few months, each stopping the line for several days and reducing plant capacity by half.
- F2
Existing temperature and oil-flow sensors indicated problems only after damage was advanced.
- F3
Permanent vibration sensors detected bearing damage through frequency-specific signatures.
- F4
The plant and supplier report that earlier warning enabled planned repair and led to a long-term remote diagnostic support arrangement.
Facts and reported results are kept separate from the lesson a plant may choose to test.
Operating context
Recurrent grinding-drive gearbox failures stopped a line for days and cut capacity in half; temperature and oil-flow detection was late.
Intervention or finding
Permanent vibration sensors and remote diagnostics were installed.
Documented result
Plant and supplier report earlier detection, less damage exposure, plannable repairs, and a long-term support contract; no quantified availability delta.
Plant interpretation
Monitor the variable that reveals the failure mode and connect alarms to prepared maintenance decisions.
Transfer boundary
Supplier-reported and qualitative; no before/after downtime series.
Questions to verify at your plant
These are decision checks, not operating instructions. Resolve them through local risk assessment, technical review, and authorization.
- 01
Which measurable signal appears early enough for the target failure mode and operating speed?
- 02
How will load, speed, process state, and sensor health be captured so analysts can distinguish a fault from operating variation?
- 03
What lead time is required to plan parts, labor, access, and a controlled outage?
- 04
Will alarm precision, warning time, avoided damage, and false positives be recorded after deployment?