Knowledge Base

Standard vibration transducer conventions: motion towards the transducer, bearing numbering from the driver end, and X & Y sensor orientation. STI field application note.

Theory of operation, target material, runout, cabling, grounding, calibration, gapping and internal vs. external mounting for eddy current proximity probes.

Journal bearing design, hydrodynamic oil wedge, oil whirl and whip, common geometries (plain, lemon bore, pressure dam, tilting pad) and vibration monitoring.

What a rotating machinery predictive maintenance program involves, its benefits, survey and implementation steps, plus a PM program justification worksheet. STI field application note.

Why readings from different vibration instruments disagree: transducer type, bearing type, measurement type, engineering units, frequency response, mounting and location, plus conversion formulas. STI field applicatio...

How to build the machine list for a predictive maintenance data collector program: classifying machines as critical, essential or general purpose, choosing measurement points and parameters. STI field application note.

Journal bearing failure modes diagnosed with orbit analysis: balance, cracked shaft, loose rotating parts, oil whirl, oil whip, excessive preload and rub. STI field application note.

Safety data sheets (SDS) for SKF lubricants and chemicals in English, Spanish and USA versions, plus NSF registrations and Halal/Kosher certificates.

SUS viscosity range covered by each SAE oil rating, from 5W to 70.

Large savings to be made with correctly aligned machines: why sheave/pulley misalignment costs energy and belts, and the advantages of laser alignment over rulers and cords.