Bearings made of pure steel are generally used as support rollers and are characterized by a high load capacity in conjunction with a long lifetime, minimal wear, as well as a low starting and rolling resistance. Steel ball bearings with a double row increase the existing high load capacity even more. There are many different materials and grades to choose from, such as 100Cr6, machining steel, brass, stainless steel, … Special lubricants are employed to fulfill user-oriented purposes such as for applications with high and low temperatures or for the food sector.