Bearings na ƙwallon ƙafa mai siffar Metric Single Row Deep Groove Radial Ball Bearings suna zuwa da salo iri-iri. Daga hatimi biyu da garkuwa, salon zoben snap, da kuma duka matakan masana'antu da na musamman. Bearings na ƙwallon ƙafa mai siffar Single Row Deep Groove (SRDG) galibi ana amfani da su don aikace-aikacen sauri inda ake buƙatar tsawon rai da aiki mai mahimmanci, har ma da jure ƙananan kurakurai na axial.
