There are many types of roller bearing systems. Welcome Tradebearings for basic bearing designations and dimensions enquiry system, Bearing types include commonly used ball and roller bearings, slewing bearings, and bearings used in automobiles, agriculture, excavators, and some bearings used on special equipment. Tradebearings was founded in 2010. Tradebearings is an online platform for bearing trade that connects global buyers and suppliers. More information: www.en.tradebearings.com