Flat forty five metallic 1.25Mod gear carbon steel usual exterior spur gearPacking listing customized:1.25mod 50 tooth 22mm bore with 6mm keyway1.25mod 60 enamel 22mm bore with 6mm keyway1.25mod 63 tooth 22mm bore with 6mm keyway1.25mod sixty five teeth 22mm bore with 6mm keyway1.25mod eighty tooth 22mm bore with 6mm keyway1.25mod ninety five enamel 22mm bore with 6mm keyway1.25mod a hundred and ten enamel 22mm bore with 6mm keyway10mm thick, 22mm bore, 6mm keyway,total 7pcs gear, some of them will not be permanently blackened, If you mind, please do not place an order.Customized link, size and different information can't be changed after placing the order, and can't be returned or cancelled.Please test earlier than placing the order. Thank youSupport customization of one piece. If you need other models or inside holes, keyways, etc., you might contact customer service.The diameter of hole A is optional: [as long because the equipment can meet the size]!Diameter 4; 5; 6; ... 28; 29; 30;Material: 45# steel;------------------Recommended length of keyway F:Hole 8~ Hole nine == F3;Hole 10~ Hole 12 == F4;Hole 13~Hole 17 == F5Hole 18~Hole 22 == F6Hole 23~Hole 40 == F8----------------------------