Anjeneral, gen twa kalite PDC (polycrystalline dyaman kontra enfòmèl ant) ​​BEARINGS: pouse portant, radial portant, ak konbinezon portant.  PDC kote yo pote nesesè pou anviwònman di, ki te aplike nan turbo ekzèsis, motè labou, elektrik ponp submersible, RSS (rotary direction sistèm), operasyon jaden lwil oliv, elatriye.

PDC Radial BEARINGS/TSP Radial B

PDC poussée bi/PCD poussée bi

PDC konbine kote yo pote

PDC/Tungstène Carbide Throttle P