What is for?High quality products. Get better performance for your Conveyors. Specs:Material = Stainless SteelA = 48.5 mm, diameterB = 15 mmC = 7.5 mmD = M8 – 1.25E = 8 mmF = 4 mmG = 28 mmWorm Gear 15-TOOTH$38.40PriceAdd to CartBuy Now