41 short articles written for engineers and maintenance teams. Each one explains one idea and ends with what to do about it.
| Article | In short |
|---|
| Shock pulse and vibration | Two ways of looking at a machine. One hears the impacts, the other feels the motion. Together they give the complete picture. |
| Reading an oil analysis report | Match the biggest number on the sheet to a part on the machine. What iron, copper, silicon, sodium and the additive elements point to. |
| Monitoring very slow machines | Kiln support wheels, mills and slow drives give off weak, rare impacts. What works there, how to read the spectrum, and how early a defect can be caught. |
| Envelope analysis | A failing bearing can look quiet in the FFT. Four steps bring the fault out, and one of them decides whether it works. |
| Bearing defect frequencies | The four formulas and a plain table of what each defect looks like in the spectrum and how it develops. |
| From first signal to teardown | A repeatable way to turn a weak vibration signal into a maintenance decision that people trust. |
| Setting up bearing vibration measurements | Where to put the sensor, how often to measure and how to set alarms that people act on. |
| Gear mesh and sidebands | The gear mesh frequency, the sidebands around it, and how a spacing in hertz points to one shaft and one gear. |
| Article | In short |
|---|
| Which bearing goes where in a cement plant | A map of the main machines, the bearing families used on each, and why the conditions decide the choice. |
| Roller press bearings | What goes wrong in hydraulic roller presses, what a case-hardened bearing changes, and why repair time matters more than parts cost. |
| Crusher belt pulley bearings that burned out every three months | A real pattern: cylindrical and ball bearings on a crusher drive pulley overheated and failed quarterly. What replaced them and what changed. |
| Reconditioning and predictive programs in cement | Reconditioning is cheaper than new, and a consistent program catches failures early. What each one needs to work. |
| Housed bearing units on conveyors, fans and screens | What a housed unit is, how much misalignment it tolerates, and how to choose seals and locking. |
| Counter shaft and pinion bearings | A step-by-step method for the radial and axial load on a mill pinion counter shaft, and what to check before trusting the result. |
| Belt-driven crusher and mill shafts | Belt pull, weights and coupling force on a shaft with the pulley between two bearings, and the shock factor that crushers need. |
| Article | In short |
|---|
| Manual, semi-automatic or automatic | Four levels of lubrication delivery, from a hand grease gun to a connected system. What each costs in effort and what it buys in reliability. |
| Single-line, dual-line, progressive and oil circulation | Five families of central lubrication, each built for a different number of points, line length, pressure and lubricant quantity. |
| Reading a lubrication pump specification | NLGI range, pressure, temperature, reservoir, outlets, output and ingress rating. What to check before a pump goes on a machine. |
| Connected lubrication | Level, working state, blocked-line warnings, a time-stamped logbook and who did what. Why remote visibility changes how lubrication is managed. |
| Open gear lubrication | Kilns, mills, dryers and presses turn on big open gears. A spray system puts the right amount of lubricant on the teeth, a little at a time. |
| Hoses, fittings and line planning for central systems | Nominal diameters, prefilled hoses, hose protection and labelling. The details that decide whether a system is easy to start and easy to fault-find. |
| Article | In short |
|---|
| Cement plant lubrication | Lubricant is a few percent of running cost, yet poor lubrication is behind most maintenance cost. The numbers, and the five rights. |
| Dust, dirt, sand and water | Once contaminants reach a bearing or bush, they stop being dirt and become an abrasive paste. Frequent lubrication is part of the defence. |
| Machine by machine | Approximate lubrication-point counts, the components that need grease or oil, the main challenge and the method that usually suits. |
| Kiln tyres and riding rings | The tyre rides on support pads while the kiln turns. Solid-lubricant greases, applied in small doses through nozzles, protect both surfaces. |
| Grease classes for heavy, slow, dusty machines | Six grease families used in cement plants and similar heavy industry, what each is good at and where it fits. |
