Miniature Metric Series, Single Row Deep Groove Ball Bearing with Two Seals - (4x16x5 mm)

634-2RS is a 630 miniature series double sealed single row deep groove radial ball bearing with a 4 mm bore, 16 mm outside diameter, and 5 mm width. Designed with a larger outside diameter than standard 624-size bearings, this miniature bearing uses steel balls and deep groove raceways for stable rotation in compact assemblies. Double rubber seals help retain grease inside the bearing and support reliable use in small enclosed mechanisms. Commonly used in RC vehicles, small motors, 3D printers, model equipment, and precision mechanisms. Product Specifications: Bearing Type: Single Row Deep Groove Radial Ball Bearing Part Number: 634-2RS Series: 630 Miniature Series Inner Diameter (ID): 4 mm Outer Diameter (OD): 16 mm Width (W): 5 mm Closure Type: Double Rubber Sealed Load Direction: Radial and Light Axial Loads Precision Rating: ABEC 1 Material: Chrome Steel Lubrication: Pre-Lubricated with Grease Applications: RC vehicles Small motors 3D printers Model equipment Precision mechanisms