Needle Bearings

Stamped cup needle roller bearings are needle roller bearings with a thin stamped and formed outer ring. Its main feature is the low cross-sectional height and high load capacity. It is mainly used for bearing arrangements that are compact, inexpensive and the bore of the bearing housing cannot be used as a raceway for needle cage assembly. Bearings and housings must be installed in an interference fit. If the axial positioning functions such as shoulder and stop ring can be omitted, then the inner hole of the bearing box can be made very simple and economical. Drawn cup needle roller bearings mounted at the end of the shaft are available in double-sided open and single-sided closed versions. The base face of the closed stamped outer ring can withstand small axial guiding forces. Drawn outer ring needle roller bearings generally do not have an inner ring. In cases where the journal cannot be hardened and ground, the inner ring listed in the table can be used. The hardened steel outer ring of a stamped cup needle roller bearing is inseparable from the needle roller cage assembly. The free space to store the lubricant allows for longer relubrication intervals. Bearings are generally designed in a single row. With the exception of the wider bearing series 1522, 1622, 2030, 2538 and 3038, which are fitted with two needle roller cage assemblies. The outer ring of the bearing has lubricating oil holes. Depending on the user's requirements, all single-row drawn cup needle roller bearings with a shaft diameter greater than or equal to 7 mm can be equipped with an outer ring with lubricating holes (code suffix AS1). Needle roller bearings with oil-sealed coils are available with open or closed ends (3 to 5) where the oil seal cannot be fitted due to space constraints. These bearings are equipped with friction seals made of polyurethane or synthetic rubber, filled with lithium-based grease with good rust resistance, and are suitable for operating temperatures from -20 to +100°C. The inner ring of the bearing with oil seal is 1mm wider than the outer ring, which makes the bearing ensure that the oil seal works well and avoid bearing contamination when there is a slight displacement of the shaft relative to the bearing box. The inner ring of the bearing also has lubrication holes, which can be supplemented by the outer ring or the inner ring according to the needs of the bearing arrangement

Needle Bearings,Needle Thrust Bearing,Stainless Steel Needle Bearings,Stainless Steel Needle Roller Bearings

Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com