uxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0.5 Mod 28T 5mm Bore 15mm Outer Dia, M3 Set Screws Included update_march2023 Or you can use the

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uxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0.5 Mod 28T 5mm Bore 15mm Outer Dia, M3 Set Screws Included update_march2023 Or you can use theuxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0. 5 Mod 28T 5mm Bore 15mm Outer Dia, M3 Set Screws Included Product Features Pinion Gear: Model: 0. 5 Mod; Teeth: 28T; Bore Size (Shaft Dia.): 5mm 0. 2"; Outer Dia. (Teeth Part): 15mm 0. 59"; Effective Teeth Length: 5mm 0. 2"; Step Size: 12mm x 5mm 0. 47" x 0. 2" (D*H) 45# Carbon Steel: Made of 45# carbon steel, the pinion gear has better hardness, higher strength and