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THE PERFECT ALTERNATIVE: 20:1 worm gears can replace 4:1 worm gears and provide higher torque or slower output speeds, and the worm gear reduces the likelihood of reverse drive to almost zero Replacement parts for industrial robots: bronze worm gears with metal worm sets are simple, compact, small and lightweight, easy to install and disassemble, offer you great convenience and save a lot of time on installation High-quality materials: worm gears with high torsion are made of bronze worm wheels and metal shafts, which are durable, impact resistant, high temperature resistant and corrosion resistant, ensuring a long service life Areas of application: bronze worm wheels are suitable for mounting on D shafts with 4.7 mm diameter, worm gear shafts on D shafts with 6 mm or 4.7 mm, the packing list contains 1 worm wheel and 1 shaft Ideal for industrial robots: worm gears made of metal are well made and ensure a high level of quality, making them an excellent accessory for practical installation and use and definitely a good tool for industrial robots › See more product details; Product description We strive to provide various industrial equipment, improve daily life and the environment, and focus on user experience, product quality and reliability of cutting-edge technology Specification: Item Type:Worm Gear Gear Ratio: 20:1 Material: worm wheel made of bronze, metal shaft. Package list: 1 x worm wheel. 1 x shaft. Note: 1. Worm wheel mounted on D shaft with 4.7mm diameter, worm gear shaft mounted on 6mm or 4.7mm D type shaft 2. Please note that the new type and old type of this product are sent at random, and make sure you do not mind before ordering.; Product description We strive to provide various industrial equipment, improve daily life and the environment, and focus on user experience, product quality and reliability of cutting-edge technology Specification: Item Type:Worm Gear Gear Ratio: 20:1 Material: worm wheel made of bronze, metal shaft. Package list: 1 x worm wheel. 1 x shaft. Note: 1. Worm wheel mounted on D shaft with 4.7mm diameter, worm gear shaft mounted on 6mm or 4.7mm D type shaft 2. Please note that the new type and old type of this product are sent at random, and make sure you do not mind before ordering.; We strive to provide various industrial equipment, improve daily life and the environment, and focus on user experience, product quality and reliability of cutting-edge technology Specification: Item Type:Worm Gear Gear Ratio: 20:1 Material: worm wheel made of bronze, metal shaft. Package list: 1 x worm wheel. 1 x shaft. Note: 1. Worm wheel mounted on D shaft with 4.7mm diameter, worm gear shaft mounted on 6mm or 4.7mm D type shaft 2. Please note that the new type and old type of this product are sent at random, and make sure you do not mind before ordering.