Hign-concerned Chemical : None Surface Roughness : Ra 0.05 Torque Capacity : 15*26*7 mm Structure : Si3N4 Balls Model Number : 15267 Hybid Ceramic Bearing For KOOZER XM490 BM440 Hub Coatings : Steel Material : Hybrid Ceramic Brand Name : FUSHI Origin : Mainland China Certification : RoHS WHAT IS A HYBEID CERAMIC BEARING? A ceramic hybrid bearing is a combination of ceramic balls and bearing quality steel rings. Which combine hardened steel rings with rolling elements made of high-performance ceramic materials, are an increasingly popular option for demanding applications. TECHNICAL SPECS Model: 15267 RS Structure: Deep Groove Ball Material: Hybrid Ceramic Bore Dia (d): 15 mm Outer Dia (D): 26 mm Width (B): 7 mm Clover: Sealed (2RS) Lubrication: Grease Clearance: C0 Quantity: 1 Lot = 1 PC Special Note: --- 1, Sometimes the cages will be different. eg.: 67 series thin-walled bearings, because the inner wall is very thin, will use the crown-shaped iron cage. --- 2, The grease and sealed are accept custom-made, so sometimes there are different colors of the rubber sealed. If you mind the sealed color, please contact us. We'll confirm the stock for you. --- 3, The standard clearance of bearings is ISO standard C0, the United States standard K25, the clearance value is 3-18um; If you have special requirements for swinging, please contact us before purchasing to confirm. This Bearing Structure Standard Type: A ball bearing is composed of an outer and inner ring, balls, seal and a retainer.