needle roller bearing HK2030

roller bearing Good material, High precison, Strong abrasion capability

With the same size compared to other types of bearings, such bearings friction, high limiting .

 Needle roller bearings are cylindrical roller with a roller bearing, relative to its diameter, both the thin and long rollers. Such as needle roller. Despite the smaller cross section, has a higher load bearing capacity, therefore, especially for the occasion radial space is limited.   Contour surface in the proximal surface of needle at a slight contraction. Needle and roller contact with the modified line results can be destructive to the edge to avoid stress. Department of thick-walled bearing outer ring needle roller bearings, high temperature nitrogen quenching, high-precision roller separation from the wall to guide the outer ring of high rigidity, the use of linear contact wheel can easily turn in the raceway, and can under tremendous load. For the removal of stress, support the outer wheel design with arc, curve there with a single wheel, double seals, without seals, seal rings and other specifications. Grease a large space with a storage ring to provide long-term lithium grease lubrication, and extended lubrication intervals. Ring with a skeleton made of nitrile rubber or ST12, the operating temperature range of -30 ° C to +100 ° C or -30 ° C to +180 ° C. Curve closely mounted wheel can withstand extremely heavy loads and high-performance operation. RSTO outer ring without ribs, roller bearings without inner ring.  Characteristics and uses needle roller bearings: With thin and long needle bearing roller (roller length of 3 to 10 times the diameter of a diameter of generally not more than 5mm), so the radial structure is compact, the diameter size and payload capacity the same with other types of bearings, minimum diameter, especially for radial bearing mounting dimensions restricted results. Depending on different occasions, the choice of the bearing without inner ring or needle roller and cage assemblies, this time to match the journal and the bearing surface and shell holes, as bearing directly on the surface, the outer rolling surface, in order to ensure the load capacity and operational performance and a ring bearing the same shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar roller bearing rings. Such bearings can only bear radial load.   The type of needle roller bearings In addition to catalogs listed in the bearing can be used for general engineering, such as: open type Needle roller bearings (1), closed Needle roller bearings (2), needle roller bearings with inner ring (3) and non-Needle roller bearing inner ring / no cage needle roller bearings without inner ring (4), a cage and no cage full of needle roller bearings (5) SKF can supply all types of needle roller bearings, 1 needle Cage assembly 2, needle roller bearings without ribs 3, self-aligning roller bearings 4, combined needle roller / ball bearings 5, combined needle roller / thrust ball bearings 6, combined needle roller / cylindrical roller thrust bearings

needle roller bearing HK2030