Needle bearing is a kind of roller bearing with cylindrical roller. Relative to its diameter, the roller is thin and long. This kind of roller is called a needle roller. The needle roller bearing is equipped with thin and long rollers, so its radial structure is compact. When the inner diameter and bearing load capacity are the same as other types of bearings, the outer diameter of needle roller bearings is the smallest. It is especially suitable for the support structure with limited radial installation size.Runstar Bearings supply four kinds of one way needle roller bearings as HF Series,HFL Series,EWC Seires and OWC series. there are chrome steel(Gcr15) and stainless steel(304) for choice in Runstar. Custom-made products is accepted in Runstar