DIY Electric Skateboard Gear Wheels Kit 04C 2 Points Chain Wheel Gear 27 Gear Electric Diy Wheels,9X27 G 8mm D - AliExpress
Babbitt Chainwheels
Chainwheel Operators – VSI Waterworks
Chain wheels | Oranjeberg
Chain wheel, 26 teeth made of cast iron 20 DIN 766 outer diameter 335mm, for diameter 5/6 mm: Roller Chain Sprockets: Amazon.com: Industrial & Scientific
chain wheel gear operator ground-level manual gear operator for overhead valves - Flow Line Controls