Enhance your mechanical projects with this set of 10 high-quality miniature deep-groove bearings, designed for smooth operation and durability. Crafted from premium bearing steel, these bearings offer low noise performance and a long service life, making them ideal for a variety of small hobby applications involving 20mm shafts or rods. Key Features: · Premium Bearing Steel Construction: Ensures excellent strength, durability, and resistance to wear, providing reliable performance over time. · Rubber Sealed Design: Prevents contaminants from entering while retaining lubricant inside, improving bearing lifespan and reducing maintenance requirements. · Standard Dimensions: Each bearing features an inner diameter of 20mm, an outer diameter of 42mm, and a thickness of 12mm, perfectly suited for precision 20mm shaft projects. · Deep-Groove High-Speed Type: Single-row rolling element provides smooth rotation with high-speed capability, ideal for various hobbyist and DIY mechanical applications. · Quantity of 10 Pieces: Offers ample supply for multiple projects or replacements, delivering great value and convenience. Specifications: · Model: 6004-2RS1 · Material: Bearing Steel · Type: Deep-Groove High-Speed · Rolling Element: Single Row · Inner Diameter: 20mm (0.8in) · Outer Diameter: 42mm (1.7in) · Thickness: 12mm (0.5in) · Quantity: 10 Pieces · Weight: Approx. 339g (12oz) Package Includes: · 10 x Miniature Bearings These miniature bearings are a perfect choice for hobbyists and professionals seeking reliable, quiet, and long-lasting components for small-scale mechanical assemblies and projects.