Product: 10 × 6901 2RS grooved ball bearings (references: 6901RS, 6901Z, 6901 ZZ) - Quantity: 10 pieces - Model: 6901 2RS (also referenced as 6901RS / 6901Z / 6901 ZZ in specifications) - Type: Grooved ball bearing (6901 2RS Normal) - Material: Chrome steel - Dimensions: 12 × 24 × 6 mm (inner diameter 12 mm) Why you need these bearings - Reliable rotation and load support: Precision grooved ball design ensures smooth radial motion and consistent load distribution for rotating parts. - Durable material and sealing options: Chrome steel construction offers wear resistance and long service life; seals/shields referenced in the model names help retain lubricant and reduce contamination. - Ready-to-replace, economical pack: Ten identical bearings let you service multiple machines, keep spares on hand, or complete multi-point rebuilds without hunting parts. Key benefits at a glance - Fit and compatibility: 12 mm inner diameter works with shafts designed to that standard size; standard 6901 form factor fits common housings and assemblies. - Performance: Low friction rolling elements reduce heat and energy loss, improving efficiency and prolonging component life. - Protection and maintenance: Sealed/shielded variants referenced (2RS/ZZ/RS/Z) indicate options designed to limit ingress of dust and debris and to hold lubricant for longer intervals. Applications and practical scenarios - Electric motors and small gearboxes: Use these bearings to support motor shafts and gearbox input/output shafts for smoother operation and reduced wear. - Power tools and small machinery: Replace worn bearings in drills, grinders, or CNC hobby equipment to restore precision and reduce vibration. - Hobby and light industrial equipment: Ideal for RC vehicles, conveyor rollers, or other rotating assemblies where a 12 mm shaft fit and compact bearing profile are required. What’s included - Ten (10) chrome steel 6901 2RS grooved ball bearings, 12 × 24 × 6 mm Installation and care pointers - Match shaft and housing tolerances to typical 6901 dimensions for best fit and life. - Use appropriate lubricants if seals allow re-lubrication; sealed variants retain factory lubricant but may still require periodic replacement in heavy-use environments. - Avoid hammering bearings into place; use proper presses or drivers to prevent race or seal damage. This listing preserves the specified models, material, dimensions, and quantity for straightforward replacement or upgrade of compatible mechanical assemblies.