1 Miniature Ball Bearings DPI miniature bearings are manufactured with extra high precision. Their main application is in small low load high speed areas. Miniature Bearings . 1.5 to 5 mm bore diameter . 6 to 9 mm bore diameter . 1.5 to 4 mm bore diameter flanged type . 5 to 9 mm bore diameter flanged type . 1.984 to 9.525 mm bore diameter . Magneto Ball Bearings Application: Industrial Due to their extra small size miniature bearings can operate at high speeds but can[...]