628/7/2Z

As a double-sided dust-proof sealed version of the 628 series of small deep groove ball bearings, 628/7/2Z is primarily designed to serve as a low-friction, high-speed rotating support component for precision small equipment. Relying on the 2Z double-sided pressed steel dust cover design and compact structural dimensions (inner diameter 7mm, outer diameter 14mm, width 3mm), it maintains the core advantages of deep groove ball bearings, which mainly bear radial loads and can withstand a small amount of axial loads, while emphasizing dust-proof protection and operational stability. It provides reliable support for small machinery with limited space and high cleanliness requirements. It features the typical thin-walled lightweight characteristics of the 628 series, is easy to install, and has a low friction coefficient. The 2Z dust cover effectively prevents dust and impurities from entering the bearing interior, extending the service life of the grease and the overall service life of the bearing, avoiding increased wear or decreased precision due to the entry of contaminants. It also meets the high-speed operation requirements under medium and low loads. Its application scenarios focus on the field of small precision equipment, covering the electronics industry (micro motors, printer drive components), instrumentation industry (precision measuring instruments, sensor rotating mechanisms), medical equipment industry (small diagnostic devices, portable medical instruments), light industry machinery industry (small gearboxes, micro pumps), and automation equipment industry (small actuators, robot end joints), etc. Through the precise matching of compact size, dust-proof protection, and stable rotation performance, it ensures the efficient operation and long-term reliability of small equipment.