Miniature Metric Series, Single Row Deep Groove Ball Bearing with Two Shields - (4x12x4 mm)

604-ZZ is a 600 miniature series double shielded single row deep groove radial ball bearing with a 4 mm bore, 12 mm outside diameter, and 4 mm width. Manufactured with precision-ground raceways and steel balls for smooth, low-friction rotation in compact mechanical assemblies. Double metal shields help retain lubricant while reducing running drag compared with rubber sealed designs, supporting moderate to high-speed miniature applications. Commonly used in RC cars, small fans, micro pulleys, hobby motors, and precision instruments. Product Specifications: Bearing Type: Single Row Deep Groove Radial Ball Bearing Part Number: 604-ZZ Series: 600 Miniature Series Inner Diameter (ID): 4 mm Outer Diameter (OD): 12 mm Width (W): 4 mm Closure Type: Double Metal Shielded Load Direction: Radial and Light Axial Loads Precision Rating: ABEC 1 Material: Chrome Steel Lubrication: Pre-Lubricated Applications: RC cars Small fans Micro pulleys Hobby motors Precision instruments