Key benefits Precise alignment and easy service: A rigid flange disc shaft coupling designed for alignment along the optical axis, with easy installation and replacement. Stable, adaptable design: A specialized coupler that fixes one shaft to a plane surface and allows easy mounting of other parts on the shaft, enhancing overall stability of the shaft assembly. Clear type and compatible use: Type: Flange Shaft Coupling. Suitable for model shaft connections and accessories for RC model motors, among other applications. Robust construction: Made from 45# steel, with a heattreated and electroplated process to increase sturdiness and insulation. Specifications and materials Type: Flange Shaft Coupling Material: 45# steel Finish/process: Heattreated and electroplated for improved sturdiness and insulation Intended connections: Model shaft connections and RC model motor accessories Applications and use scenarios RC model motors: Connect motor shafts to propeller hubs or gear assemblies, providing a stable and easytoservice coupling in radiocontrolled models. Hobby model shaft assemblies: Fix one shaft to a plane surface and attach additional parts on the shaft with a reliable, stable seat for improved assembly integrity. Small robotics or hobby equipment: Use in precision shaft connections where alignment along the optical axis and straightforward installation are beneficial, and where parts may need to be replaced or reconfigured readily.