Speed sensors for drives and axes are critical components in industrial automation, manufactured by various global companies. Prominent brands include Siemens (Germany), which offers high-precision sensors for manufacturing and robotics, and Schneider Electric (France), known for its robust sensors in energy and machinery. These sensors are widely used in industries such as automotive, aerospace, and CNC machining to monitor and control motor speeds, ensuring optimal performance and safety. Key products include incremental encoders, tachometers, and Hall-effect sensors, often available through industrial suppliers like Radwell and Grainger.