Single-row deep groove ball bearings are the most common bearing type in the world due to their versatility and performance. These bearings are available in a variety of seal, shield and snap-ring arrangements. Bearings with seals or shields are standardized and already contain the proper amount of grease. Open bearings will require lubrication. These bearings can sustain radial and/or axial loads and because of their simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation. NACHI Miniature Deep Groove Ball Bearing, 6 mm Bore, 19 mm OD, 1 Row, 6 mm Width, Open Closure, 2336 N Dynamic/896 N Static Load, Steel Bearing, Machined Bronze Cage, 32000 RPM Grease/40000 RPM Oil Maximum, 250 °F