Construction elevator gear rack pinion M8 40x60x1508mm M8 30x50x1508mm M8 50x60x1508mm M10 50x60x1508mm M7 40x40x1495mm M5 50x50x1000mm Autogate gear rack: M4 8x30x1000mm/2000mm M4 9x30x1000mm/2000mm M4 10x30x1000/2000mm M4 11x30x1000/2000mm M4 12x30x1000/2000mm M4 22x22x1000/2000mm M6 30x30x1000/2000mm Nylon rack (4 holes / 6 holes for choice) Standard gear rack for industry field: M1 15X15X420 M1 15X15X600 M1 15X15X1000 M1 15X15X2000 M1.5 18X18X420 M1.5 18X18X600 M1.5 18X18X1000 M1.5 18X18X2000 M2 20X20X420 M2 20X20X600 M2 20X20X1000 M2 20X20X2000 M2.5 25X25X420 M2.5 25X25X600 M2.5 25X25X1000 M2.5 25X25X2000 M3 30X30X600 M3 30X30X1000 M3 30X30X2000 M4 40X40X600 M4 40X40X1000 M4 40X40X2000 M5 50X50X600 M5 50X50X1000 M5 50X50X2000 M6 60X60X2000 M8 60X40X1508 M8 80X80X2000