1.High Precision 2.High Speed 3.Material:Bearing/Chrome/Carbon/Stainless steel Product Details MaterialChrome steel, Carbon steel, stainless steel, Bearing SteelSeals typeOPENNumber of RowsingleApplicationWidely used in automobile, Instruments, electric, construction and agricultural mechinery AdvantageHigh speed, Less coefficient of friction(COF), High precision, Low noise, Low cost, Large ...