The 629-ZZ is a premium-grade miniature radial ball bearing engineered for applications that demand high rotational speeds, minimal friction, and reliable debris protection. Encased with dual pressed-steel shields (ZZ), this bearing effectively retains internal lubrication while preventing the entry of larger particulates. Featuring a versatile 9mm inner bore, a 26mm outer diameter, and an 8mm width, the 629-ZZ is the component of choice for handheld power tools, high-performance hobby mechanics, and automated manufacturing systems requiring exceptionally smooth continuous rotation.