Two pieces of miniature plane bearings. This set covers a range of model sizes listed in the product title (F26, F2.56, F38, F917, F611, F1221, F1223, F822, F1018, F614, F512, F814, F410) with the specified size F917M. Key benefits Precise, lowfriction rotation for small mechanical assemblies Compact form factor suitable for tight spaces and micro devices Readytouse twopiece set for quick replacement or project prototyping Simple installation helps reduce downtime on hobby, model, or precision projects Key attributes Functionality: miniature plane bearings designed to support smooth rotary movement in tight tolerances Compatibility: suitable for devices or assemblies requiring the listed bearing models and sizes Size: Size F917M; bearing variants include F26, F2.56, F38, F917, F611, F1221, F1223, F822, F1018, F614, F512, F814, F410 Material: not specified in the product title Performance: intended to provide reliable, lowfriction performance in miniature applications What's included 2 pieces of miniature plane bearings, covering the sizes listed above, with size designation F917M Use cases Model aircraft or hobby robotics where compact, precise bearings are required for rotating components such as propeller hubs or small gear assemblies Miniature automation devices or precision instruments that demand smooth, lowfriction pivot points in limited spaces Prototyping or repairing small mechanical systems where different bearing sizes from the listed range may be needed for fit and clearance testing Notes The material, tolerances, and exact fit details are not specified in the product title. Verify compatibility with your specific assembly requirements before use.