deep groove ball bearing professional bearing manufacture. high precision,best quality,competitive price. Our company is a bearing manufacture,If you don't find a bearing that you needed,pls contact 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: ...