Key benefits Durable construction: metal iron material provides a sturdy, reliable foundation for longterm use and stable performance. Compact and quiet: small in size with low noise operation, enabling use in tight spaces without creating excessive sound. torque for its size: strong starting torque and consistent performance in a compact form factor. Long service life: designed for continued operation with dependable mechanical stability and wear resistance. Main specifications Material: metal, primarily iron Motor diameter: 24.5 mm Motor body length: 40 mm (ref) Output shaft diameter: 4 mm (D type) Output shaft length: about 9.5 mm Applications and compatibility Ideal for small robotics and hobby projects where space is limited and torque matters Suitable as a drive motor or a generator component in compact energy projects and educational kits to demonstrate energy conversion Fits in gearboxes and couplings designed for 4 mm shafts, enabling compact drive solutions in model devices and small automation setups Notes The specifications above define the motor size, shaft type, and overall dimensions to aid in selecting compatible mounting and drive components.