5: 1-80: 1 Speed Reducer Nmrv30 Worm Gearbox RV30 with 6.35mm Input Shaft for NEMA 23 Stepper Motor or 57mm DC Motor

5: 1-80: 1 Speed Reducer Nmrv30 Worm Gearbox RV30 with 6.35mm Input Shaft for NEMA 23 Stepper Motor or 57mm DC Motor. Wide Speed Ratio Range: Available ratios from 5:1 to 80:1 including 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, and 80. High Efficiency Design: Features high accuracy worm gears with less noise and lower temperature increase. Durable Material Construction: Worm wheel made of nodular cast iron and bronze; shaft is 20Cr steel with 56-62HRC hardness. Lightweight Aluminum Housing: Die-cast aluminum alloy housing with oven painting for corrosion resistance and light weight. Versatile Motor Compatibility: Designed for NEMA 23 stepper motors or 57mm DC motors with 6.35mm input shaft. Flexible Output Options: Available with single output shaft or dual-axis output shaft configurations. Customization from Designs: ODM service available for customization based on customer designs and samples. Fast Lead Time: Average lead time within 15 workdays for both peak and off-peak seasons.