Replacement Part for 0.5 Modulus 81 Kinds of Plastic Gear Package Keep small gear systems working smoothly with a comprehensive set of plastic gears designed for 0.5 modulus applications. This replacement kit supplies a wide variety of gears and racks for repairs, prototyping, and DIY model production where precise micro gearing is required. Key benefits Broad compatibility: Designed for 0.5 modulus gear systems, suitable for micro gearboxes, small transmissions, and model assemblies that require matching modulus and tooth profile. Extensive selection: Includes 81 different kinds of plastic gears and racks to cover a wide range of tooth counts, diameters, and gear types so you can find the exact part without custom machining. Simple replacement and prototyping: Change out worn gears or test gear ratios quickly during development or hobby projects to reduce downtime. Reliable meshing and performance: Gears are molded to consistent dimensions to ensure accurate engagement and repeatable performance in small mechanisms. Cost effective for hobbyists and technicians: A single kit replaces multiple individual purchases and keeps spare parts on hand for maintenance and experiments. Product attributes Function: Replacement and prototyping gears for gear racks, gear boxes, and assorted mechanical models. Compatibility: 0.5 modulus standard; fits systems and components designed for this modulus and tooth profile. Size variety: Kit contains 81 kinds covering a range of tooth counts and diameters as needed for micro gearing tasks. Material: Durable plastic suitable for light to moderate loads typical in model making, educational kits, small robotics, and prototype gear trains. Performance: Consistent molding and dimension control for predictable meshing, smooth rotation, and reduced backlash when paired with correct mating parts. Typical use scenarios Model production and : worn gears in scale models, RC components, or collectible mechanisms during assembly or restoration. Educational kits and classroom projects: Provide students with a selection of gears for hands on lessons in gear ratios, torque, and mechanical advantage. Prototyping and small robotics: Test different gear ratios and gearbox layouts in prototype assemblies without waiting for custom parts. Notes Confirm 0.5 modulus compatibility with your existing parts before installation to ensure proper fit and engagement. Intended for light to moderate duty applications common in hobby, education, and small prototype projects.