Top needle bearing provider manufacturer: The company adheres to the concept of “customer-oriented, standard-oriented, and profit-assisted”, and has established a good reputation in the bearing industry. Its products are sold to more than ten countries such as the United States, the United Kingdom, Sweden, and Germany. With excellent and stable quality instead of imports, it has won unanimous praise from customers at home and abroad. Company profile – HangZhou Jnsn Bearing Imp& Exp Co., Ltd is a company specializing in designing, manufacturing, trading of a wide range of bearings. Core technical members is active in developing popular bearing product and try fast development of new products, we always aim at quality first. OEM service is also available, we accept to customize based on the drawing or original sample. Read even more information at needle roller bearing manufacturer.

Needle roller bearings are essentially cylindrical roller bearings except that their cylindrical rollers have a length 3 to 10 times their diameter (versus a length less than 3 times their diameter). Needle bearings are also essentially bearings that utilize small & cylindric rollers. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. Even though they have a low cross section, needle roller bearings have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited. Cylindrical Roller Bearings are bearing in which cylinders are used as the rolling elements as opposed to balls in ball bearings. As such, the rollers have a greater (linear) contact area with the outer ring and are distribute loads across a broader surface. Subsequently, they have a relatively high radial load capacity and are suitable for high speeds. As one of the best cylindrical roller bearing suppliers in China, Jnsn Bearing has been specialized in cylindrical bearing types for years.Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

In order to meet the needs of the design engineers, there are three different materials for the cages—- polyamide, steel and brass. For polyamide cages, it features high elasticity, light weight and quiet running from good damping. Bearings with this cage carry the designation suffix ETN, e.g. NU 205ETN. A pressed steel cage is available for many bearings, mainly as an alternative to the polyamide cage, and such bearings are identified by the designation suffix E, e.g. 310E. As for the brass cage, the advantage includes very high strength, suitable for very high speed, accelerations, high temperature and high endurance limit. The bearing with this cage is identified by the designation suffix EM, e.g. NU 207EM.

Its main features are low cross-section height and high load carrying capacity. Mainly used for bearing arrangements that are compact, inexpensive, and the bore of the bearing housing cannot be used as the raceway for the needle roller cage assembly. The bearing and bearing housing must be installed in an interference fit. If the axial positioning function such as the box shoulder and the stop ring can be omitted, the inner hole of the bearing housing can be made extremely simple and economical. The drawn cup needle roller bearings mounted on the shaft end are open on both sides and closed on one side. The base end face of the closed stamped outer ring can withstand small axial guiding forces.

These bearings have a higher radial load capacity than deep groove ball bearings without filling slots, though their axial load capacity is lower. They cannot be used at speeds as high as bearings without filling slots. Both open (unsealed) and sealed versions of the single-row deep groove ball bearings with filling slots are available. They are also available with a ring groove on the outer race and with (NR) or without (N) a matching locking ring. The full complement deep groove ball bearings are widely used in aerospace engineering, metal cutting machine tools, steel processing equipment,paper making machinery, cement machinery, environmental protection equipment, agriculture, compressors, motors and generators, construction and so on.

The deep groove ball bearings 6000NR series are equipped with groove and circlip in outer ring. The snap ring is made from a spring steel material and fits into an annular groove around the outside of the bearing which is offset to one side. And the snap ring groove can simplify arrangement design as the bearings can be axially located in the housing by a snap (or retaining) ring, saving space. These deep groove ball bearing types are available in open, shields or sealed option. The bearings are with metal shields or contact seals offering some protection against mechanical damage and serving to retain the lubricant in the sealed for life bearing. The deep groove ball bearings 6000NR series have low friction and are optimized for low noise and low vibration which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than other bearing types.

Bearings can be seen everywhere in our lives and work, such as household appliances, garden tools and transportation. For different application scenarios, different bearings assume different roles. The bearings commonly used in vehicles represented by motorcycles and automobiles are starter motor bearings, crankshaft bearings, gearbox bearings and wheel hub bearings. According to the operating conditions of the starter motor, specific requirements are put forward for the bearing’s ability to withstand intermittent impact loads, and at the same time, it must have good dust-proof performance and select a reasonable internal bearing clearance. Discover extra details on https://www.jnsnbearing.com/.

Functionally similar to the 6200 series, the 6300 series medium ball bearings is produced with a larger ball complement and heavier races allowing greater radial, thrust and combined load capacity for a given bore size. This series is also capable of withstanding heavy shock loads. The 6300 series is available in open, sealed or shielded configurations. It is also available in stainless steel. Deep groove ball bearings 6300 types have low frictional resistance and high rotational speed and can be used to withstand radial loads or combined radial and axial loads as well as axial loads. The 6300 series deep groove ball structure is also divided into a sealed and open structure, the open type refers to the bearing without sealing structure, and the sealed deep groove ball is divided into a dust-proof seal and an oil proof seal. The dust seal cover material is stamped from steel and can easily prevent dust from entering the bearing race. The oil-proof type is a contact type oil seal, which can effectively prevent the grease in the bearing from overflowing.