Profile: Charles Bond Co. manufactures stock and special gears, worm gear speed reducers & flexible couplings. We also distribute for other gear manufacturers, as well as various related power transmission and material handling items. Our stock line of spur gears are made from either high grade steel or class 40 cast iron. We make special gears out of brass, bronze or any type of plastic or phenolic material. Our products include spur gears, bevel gears, miter gears, worms & gears, couplings and speed reducers.