... , recirculator, seal etc. By using the rolling elements, such as balls or rollers between the rail and block, the linear guide can achieve high ... accuracy with 2, 3, 4, 5 grades. Grade 5 is the normal most simple one. Roller guide: GZB(heavy load with ... . 6m/pc Production according to customer's request, block and rail assembled for the shipping. Characteristic: Heavy load, low noise, high speed ...