R-1950 Open Miniature Bearing 5x19x6mmR 1950 Ball Bearing 5x19x6 One Bearing This is commonly used in industrial, commercial, and mechanical systems that uses this size 5mm x 19mm x 6mm. made from durable 52100 alloy steel, commonly known as chrome steel. Bearing is pre lubricated with grease. R 1950 Open Ball Bearings Dimensions: 5*19*6 mm Metric ID (inner diameter) Bore=5mm OD (outer diameter)=19mm Width Height thickness=6mm Size: 5mm x 19mm x 6mm Chrome Steel Deep groove ball bearings