- Trusted Seller Union Ironworks 4 ft x 4.5ft Ball Mill- Manufacturer: Union
 4 ft x 4.5 ft Belt drive pinion gear. 17 teeth. 48 in. dia. pinion shaft pulley. 50 hp electric motor. 8 3/8 in. dia. motor drive pulley. Straight cut bull gear (96 teeth). Complete with scoop feed and trough. Mo... Savona, Canada

