NJ207-E single-row cylindrical roller bearing (enhanced type), 35mm bore, 72mm OD, 17mm width. Made of vacuum-melted GCr15SiMn steel, double-crowned outer ring + single-crowned inner ring design. Roller length increased by 12%, basic dynamic load rating upgraded to 55kN. Supports radial and single-direction axial loads (≤7.5kN), max speed 13000r/min, fits φ35k6 shafts.