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The 626ZZ ball bearing is a miniature bearing commonly used in various applications. It features an inner diameter of 6 mm, an outer diameter of 19 mm, and a width of 6 mm. The "ZZ" designation indicates that it has metal shields on both sides, providing protection from dust and debris while retaining lubrication. This bearing is known for its low friction, high speed, and durability, making it ideal for electric motors, hobby projects, and small machinery