the specification of alemite is descrribed as follows: 1.material:steel 2.colour:brass 3.length:9mm 4.D:8mm 5.type:have steel ball 6.working pressure:210kgf the type of alemite is designed for bearings,used to cars,trucks,agricultural machinery and other industrial machine. we offer all the products we have shown on alibaba.and we also produce the products as your drawings. our products have high qualiy and competitive price. welcome to cooporate with our company.