Non-standard bearings is based on a number of machinery and equipment, the use of the particularity of the place, came into being in a bearing. With the changes in the size of other machinery and equipment, performance and changes in its internal structure design and basic performance reference standard bearing design principles. Its size, performance and flexibility to adapt to the environment comparable to standard bearings. Non-standard stainless steel bearings are used more and more in standard bearings unable to adapt to the workplace.