Needle bearing manufacturing factory today: The company has rich experience in the industry of bearing production and export. We focus on not only the domestic market, but also the international market. Moreover we integrate R&D, production and export of bearings. We constantly strive for research and innovation development, adhere to the concept of “survival of high quality”, and provide excellent service for customers. Our employees receive professional training. Our competence to work out a proposal that springs a “before vs after” clear your worries. Our concept of “ survival of high quality” urges us to attach great importance to our products quality and price, thus we have absolute strengths on them. Find additional details 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. NNU Series – Are double row cylindrical roller bearing manufacturers and have three fixed ribs on the outer ring and one smooth inner ring. This design allows an axial displacement in certain limits, of the shaft in relation to the housing. Therefore, NU Series rolling bearings are used in non-locating bearing units. Also, the NNU Series bearings have no virtually thrust capacity.
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.
The HF series is composed of one-way bearings, and they are consisting of a drawn cup roller clutch with a single or multiple rollers. The models of this series come with different bore sizes that ranges from 6 mm up to 35 mm. The drawn cup needle roller clutch of these bearings has a small radial section height and is also popular with the name of One Way Bearing or Anti-Reverse Bearing. Furthermore, these one way bearings are specifically designed for the transmission of torque between the shaft and housing in one direction. In addition, bearings with plastic springs have the suffix KF, and suffix R refers to knurled outside surface.
We have plenty available bearings for practically any running precision requirement and application speed: our bearings come in different Abec tolerance grades 1-9, internal clearances vary from C2 to C4, and several different cage designs including J-type, W-type, RJ-type, TW-type, and more. The deep groove bearing 6000 series can also be supplied with a full complement of balls as a filler notch design, which is with filling slots have a filling slot on the inner race as well as on the outer race, so that more and larger balls can be accommodated than with standard deep groove ball bearings. Its structure is simple, it consists of inner and outer rings with deep symmetrical ball race, separator and complement of balls, and it can be easy to operate. The big difference between the full complement style and standard deep groove ball bearing lies in the retainer, the former is without retainer in order to add more balls.
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. See even more information at https://www.jnsnbearing.com/.
Deep groove ball bearings can be used in generators, small motors, electric fans, power tools, vacuum cleaners, conveyor, packaging machine, drilling machine, conveyor, variable, washing machine, optical instruments and so on. Single row radial ball bearing 6200 series are available in Metric and Inches, and there are three seal types reachable– rubber seals, metal shields, or just open. Also we have several material options for the bearing, plastic, chrome steel, stainless steel, ceramic, carbon steel and etc. This series features deep-honed raceways resulting in a perfectly balanced bearing. For 6200 series of deep groove ball bearing, its structure is simple and easy to use, it consists of four elements that including inner ring, outer ring, cage that holds balls and ball bearing. It is mainly used to bear radial load, but when it increases the radial clearance of the bearing, it has certain angular contact ball bearing performance and can withstand combined radial and axial loads. It can also be used to withstand pure axial loads when the rotational speed is high and thrust ball bearings are not suitable. Compared with other types of bearings of the same size as deep groove ball bearings, these bearings have a small coefficient of friction and a high limit speed.