The 6307 NR deep groove ball bearing features a 35 mm inner diameter, 80 mm outer diameter, and 21 mm width, designed as an open single-row bearing with a snap ring groove on the outer ring for secure axial location. It offers normal to slightly larger radial clearance (C3 option available) and is constructed from standard bearing steel with a sheet steel cage. The bearing supports high-speed operation up to 19,000 rpm, provides low friction and noise, and has a fatigue limit load around 0.815 kN. Its robust design suits mechanical power transmission and industrial applications requiring reliable, versatile performance.