Kugellager Ball Bearing Function and purpose - A precision component that allows smooth rotation of moving parts by reducing friction - Supports radial loads and, depending on the design, axial loads as well - Helps improve efficiency and extend the life of machinery Compatibility and sizes - Available in multiple standard sizes to fit common shaft diameters and housings - Exact bore, outer diameter, and width vary by model - Suitable for open, shielded, and sealed variants to meet lubrication and maintenance needs Material and construction - Made from high-grade bearing steel for strength and durability - Races are precision ground for low runout and reliable performance - Options include open, shielded (ZZ), and sealed (2RS) configurations Performance features - Designed for consistent performance under typical radial loads - Low torque operation and smooth, quiet running - Sealed and shielded variants offer maintenance-free operation; open variants require appropriate lubrication Size, fit and variants - Multiple size options to fit different shafts and housings - Choose variants by seal type and lubrication needs (open, shielded ZZ, or sealed 2RS) Use scenarios - Replacing worn bearings in power tools, small motors, fans, or conveyors to restore smooth operation - In DIY and hobby projects such as robotics, 3D printers, or model engineering requiring reliable rotation - In household appliances or automotive components with rotating shafts, such as washing machine drums, blenders, or small motors Selection tips - Refer to the model number for exact dimensions and seal type - Choose sealed variants for maintenance-free operation - Choose shielded or open variants based on lubrication and service interval requirements Notes - Ensure correct fit by matching bore, outer diameter, and width to the application - For optimal performance, follow lubrication and installation guidelines specific to the chosen variant