Specifications Type: Ceramic Ball, ceramic bearing Brand Name: SuWei Bore Size: 5 - 500 mm Outside Diameter: 10 - 800 mm Model Number: 6800CE Place of Origin: Yangzhou, China Application: Sports Equipment Material: ZrO2 Si3N4 Lubrication: Oil Structure: General Seals Type: Open 2RS ZZ Cage: Steel Cage.. nylon Cage Package: Box Packaging (1)Commercial Taper Roller Bearings packaging: pc/plastic bag + color box + carton + pallet; (2)Industrial Taper Roller Bearings packaging: plastic tube + carton + pallet; plastic bag + kraft paper + carton + pallet; (3)According to the requirement of customer of Taper Roller Bearings Delivery (1) Less than 45 KGS, we will send by express. ( Door to Door, Convenient (2) Between 45 - 200 KGS, we will send by air transport. ( Fastest and safest, but expensive ) (3) More than 200 KGS, we will send by sea. ( Cheapest, but long time ) Our Service High quality, good credit and excellent service are the tenet of our company. Customers’satisfaction is our lifeline, as well as our highest honor. We will do our best to meet your requirements, and will do better in the future. buy discount Ceramic Bearing website:http://www.cnplasticbearing.com/ceramic-or-plastic-or-stainless-steel-bearing/ceramic-bearing/