72 PCS 6 Sizes Deep Groove Ball Bearings Assortment

【72PCS ULTRA-VALUE SET】MORE QUANTITY FOR ALL NEEDS. Contains 72 high-quality ball bearings in 6 popular sizes: 693ZZ (14pcs), 623ZZ (13pcs), 624ZZ (13pcs), 685ZZ (12pcs), 687ZZ (10pcs), and 627ZZ (10pcs). This comprehensive assortment offers more pieces than typical sets, ensuring you always have a spare for your maintenance or DIY projects. 【STABLE PERFORMANCE】SMOOTH & LOW NOISE. Made of durable carbon steel with a sleek silver finish, these miniature bearings are pre-lubricated with high-speed grease to ensure smooth rotation and reduced friction. Designed to provide reliable support for low to medium load applications, effectively solving common issues like jitter and squeaking in moving parts. 【DOUBLE METAL SHIELDED】EFFECTIVE PROTECTION. Each bearing features double-sided metal shielding (ZZ) to prevent dust, dirt, and impurities from entering the interior. This design preserves the lubricant and extends the service life, making them more resilient in various working environments compared to open-type bearings. 【PRECISE DIMENSIONS】UNIVERSAL COMPATIBILITY. Accurately sized for a perfect fit: from the smallest 693ZZ (3x8x4mm) to the largest 627ZZ (7x22x7mm). Ideal for 3D printers (like Voron/Creality), RC cars, small motors, skateboards, and household appliances. Clear size specifications help you quickly identify the right part for repair. 【VERSATILE APPLICATION】THE DIYER'S CHOICE. Whether you are fixing a fidget spinner, upgrading your RC vehicle's transmission, or building a custom robotics project, this versatile set provides the essential components needed for precision motion. A must-have hardware kit for hobbyists and professionals looking for a cost-effective bearing solution.