DIN ISO 281 Beiblatt 3:2009 Rolling bearings - Dynamic load ratings and rating life - Supplement 3: Estimating of the contamination factor and the contamination level for rolling bearings in closed industrial gear units
2011DIN ISO 281 Bb.5:2011 Rolling bearings - Dynamic load ratings and rating life - Supplement 5: Load ratings for hybrid bearings
2010DIN ISO 281:2010-10 Rolling bearings - Dynamic load ratings and rating life (ISO 281:2007)
2010DIN ISO 281:2010 Rolling bearings - Dynamic load ratings and rating life (ISO 281:2007)
2009DIN ISO 281 Beiblatt 3:2009-07 Rolling bearings - Dynamic load ratings and rating life - Supplement 3: Estimating of the contamination factor respectively the contamination level for rolling bearings in closed industrial gear units
2009DIN ISO 281 Beiblatt 3:2009 Rolling bearings - Dynamic load ratings and rating life - Supplement 3: Estimating of the contamination factor and the contamination level for rolling bearings in closed industrial gear units