- Comprehensive 16-Piece Ball Bearing Set for Smooth Material Handling: Essential for efficient operations across hardware, machinery, chemical, forestry, and more. Features 360° universal rotation for easy movement and redirection of conveyors. High load capacity and robust carbon steel construction ensure suitability for conveyor installation, machine processing, and DIY projects. - Quick and Secure Installation: Each ball bearing has a diameter of 25.4 mm and a mounting hole diameter of 5.6 mm for straightforward setup. Pre-drilled mounting base allows fast installation (screws not included). For best performance, lubricate bearings before initial use. - Enhanced Durability and Resistance: Constructed from hardened carbon steel with a zinc coating, these transfer bearings resist wear and corrosion. Each unit supports up to 30 kg, ensuring reliable performance and extended usability under demanding conditions. - Exceptionally Quiet and Smooth Operation: Enjoy stable and noiseless movement with our precision-engineered ball transfer units. Designed for silent high-speed operation, the precision steel balls minimize vibration and noise, providing discreet functionality in any environment. Use Scenarios: 1. Ideal for material handling in warehouses, allowing for efficient movement of heavy items along conveyor systems. 2. Perfect for DIY enthusiasts working on custom projects requiring smooth sliding or movement of materials. 3. Suitable for machinery applications where reliable and noiseless operation is crucial for optimal performance.