deep groove ball bearing professional bearing manufacture. high precision,best quality,competitive ... us,we can offer it for you.Skype: terry-lee6Deep Groove Ball BearingMaterial: GCr15,stainless steel,ceramic,carbon steel,etcBrand and ... As a bearing manufacture,we can offer many kinds of bearings. 6000 series: 6000 to 6028 OPEN,ZZ and 2RS TYPE6200 ...