The 635-ZZ is a High-Performance Miniature Deep Groove Ball Bearing designed for applications demanding reliable operation with superior contamination resistance. Equipped with double metal shields (ZZ) on both sides, this metric bearing delivers effective protection against airborne particles and debris, preserving internal lubrication and ensuring smooth, long-lasting performance. With a compact 5mm bore, it serves as an essential component in small electromechanical devices, precision instruments, and compact motor assemblies where space-saving design and dependable shielding are critical.

The 634-ZZ is a Premium Miniature Deep Groove Ball Bearing engineered for applications that demand compactness and reliable performance. Featuring double metal shields (ZZ) on both sides, this precision metric bearing provides effective protection against dust and contaminants while ensuring low-friction operation. With a 4mm bore and a robust outer diameter, it is an ideal choice for small yet demanding applications such as precision instruments, high-performance micro-motors, and compact machinery where space is limited but durability is required.