Enhance the performance and durability of your mechanical projects with this set of high-quality miniature bearings. Crafted from premium high-carbon chromium bearing steel, these deep-groove, high-speed bearings are designed to deliver low noise operation and an extended service life, making them ideal for precision applications. Each bearing features a double shield design that effectively prevents contaminants from entering while retaining lubricant, ensuring smooth and reliable rotation. Key Features: · Premium High-Carbon Chromium Steel: Provides excellent wear resistance and durability for long-lasting performance. · Double Shielded Design: Protects against dust and debris while preserving lubricant, reducing maintenance needs and extending bearing life. · Precise Dimensions: Each bearing measures 15mm inner diameter, 21mm outer diameter, and 4mm thickness, perfectly suited for small hobby shafts and rods. · High-Speed Deep-Groove Bearings: Engineered for smooth rotation and efficient load handling in various applications. · Versatile Use: Ideal for hobbyist projects involving 15mm shafts, including robotics, RC vehicles, electric motors, and other small mechanical assemblies. · Convenient Quantity: Includes 10 pieces of miniature bearings, providing ample supply for multiple projects or replacements. Specifications: · Model: 6702ZZ · Material: High-Carbon Chromium Bearing Steel · Type: Deep-Groove High-Speed · Rolling Element: Single Row · Inner Diameter: 15mm (0.6in) · Outer Diameter: 21mm (0.8in) · Thickness: 4mm (0.2in) · Quantity: 10pcs · Weight: Approx. 33g (1.2oz) Package Includes: · 10 x Miniature Bearings This set of miniature bearings combines precision engineering with robust materials to provide a reliable and efficient solution for your small-scale mechanical needs. Whether for hobby projects or professional applications, these bearings ensure smooth operation and longevity.