Module = 0.5 Material = Steel 전체 길이 = 300mm 정점 Centre 높이 = 9.5mm Face Width = 5mm Gear Racks. Metric gear racks with a pressure angle of 20°. Gear racks can be supplied in lengths of 300, 500 and 1000mm and with various pitch from 0.5 module to 2 module. Available in steel or nylon to a dimensional tolerance of ±0.25mm.