Bore Size:5 mm Outside Diameter:12 mm Precision Rating:ABEC-3(P6). ABEC-5(P5). ABEC-7(P4). Seals Type:ZZ 2RS OPEN Number of Row:Single Row Material:Stainless Steel,Chrome steel Clearance:C0 C2 C3 C4 Feature:high precision, small torque, low noise Cage:steel cage, nylon cage, etc Certificate:ISO9001:2008,SGS Service:OEM Customized Services Lubrication:grease lubrication Package:industrial packing or as per requirement Application:Financial equipment,office equipment Precision rating::P6 P5 P4 Show More