Miniature Metric Series, Single Row Deep Groove Ball Bearing with Two Shields - (9x17x5 mm)

689-ZZ is a 680 miniature series double shielded single row deep groove radial ball bearing with a 9 mm bore, 17 mm outside diameter, and 5 mm width. Designed with precision-ground raceways and steel balls for smooth rotation in small mechanical assemblies. Double metal shields help retain lubricant while reducing running drag compared with rubber sealed designs, making this bearing useful for miniature applications where speed and low resistance are important. Commonly used in small fans, hobby motors, RC equipment, micro pulleys, and precision instruments. Product Specifications: Bearing Type: Single Row Deep Groove Radial Ball Bearing Part Number: 689-ZZ Series: 680 Miniature Series Inner Diameter (ID): 9 mm Outer Diameter (OD): 17 mm Width (W): 5 mm Closure Type: Double Metal Shielded Load Direction: Radial and Light Axial Loads Precision Rating: ABEC 1 Material: Chrome Steel Lubrication: Pre-Lubricated Applications: Small fans Hobby motors RC equipment Micro pulleys Precision instruments