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 ... Model: as your request Seal Type: open,Z,ZZ,RZ,2RZ,RS,2RSSerise: 6800,6900,6000 ... OPEN,ZZ and 2RS TYPE16000 series OPEN,ZZ and 2RS TYPE