Short description
Rolling element bearings are highly loaded components in machines which, if faults or damage occur in the bearing, could result in premature failure of the machine and expensive consequential damage. The diagnostic techniques which form the subject of this guideline aim at detecting at any early stage those states of the rolling element bearings which could result in functional problems up to and including failure of the rolling element bearing before it comes to the end of its planned service life. Guideline VDI 3832 is concerned with rolling element bearings not only for rotating components in prime movers and driven machines but also for power transmission elements in machine sets and power units. It applies primarily to rolling element bearing applications in stationary installations and to those causes of damage which occur during normal operation. As regards rolling element bearing applications in vehicles and mobile installations, there may be additional effects from vibration and solid-borne sound entering from the outside. This guideline will not deal with these effects nor with measurements taken at test rigs for examining rolling element bearings. Guideline VDI 3832 supplements the usual vibration measurements of machines with those methods which are described in the DIN ISO 10816 series of standards and which cover the state of the entire machine and its components in the frequency range extending up to around 1 kHz. Guideline VDI 3832 applies to rolling element bearings running at speeds in excess of 120 revolutions per minute. It applies to single- and multiple-row ball, roller and self-aligning roller bearings. Special practical experience is necessary in the case of needle- roller bearings on account of the low structureborne sound level.