Needle Bearing, Thrust Bearing and Journal Bearing
Our Needle Bearing Factory locates in Jiangsu province. It is a professional manufacturer of needle roller bearings and bearing accessories.
The factory has advanced CNC machine tools, precision manufacturing equipment, and a group of well-trained employees who can provide customers with excellent quality products with a full range of ring needle bearings, combination bearings, thrust bearings and roller bearings.
Products are widely used in construction machinery, textile machinery, power tools, shipbuilding, automobiles, motorcycles, railways, metallurgy, mining, petroleum, machinery, electricity and other industries.
After years of strenuous efforts, the factory has established and improved a complete set of production and sales system, the products are exported to North America, Europe, Southeast Asia and Taiwan, winning perfect praise.
Product features for our needle roller bearing: good appearance, excellent quality, and durable usage. At the same time, our factory has intense product research and development capabilities and actively provides domestic and foreign customers with non-standard bearings in the development and production, helping customers to reduce costs, improve product reliability, shorten the order cycle and other aspects. We adhere to each customer’s “integrity, professional” concept to provide fast, professional service.
Solid ring needle roller bearing
Reliable ring needle roller bearings have a small and high load carrying capacity. Depending on the application, they can be divided into bearings with or without inner rings. A solid ring roller bearing consists of one or two rings and a needle roller set with a cage. Therefore, the physical bearing needle roller bearing can meet the requirements of lightweight, small footprint, and high transmission power.
The primary structure type of this needle bearing:
Outer ring double (or double lock) with cage needle roller bearings NA, NKI type
The inner ring and the outer ring (with a locking ring, complete set of needle roller and cage) can be installed separately. The permission speed is high and can be divided into a single row and a double row.
If the shaft cannot be used as a raceway, that is, if it is impossible or uneconomical to grind the shaft, such a needle roller bearing with an inner ring can be used.
No inner ring cage needle roller bearing
NA and NKI needle bearing without inner ring, also called RNA and NK needle roller bearing.
This needle bearing has no inner ring and is suitable for the support structure with limited radial installation dimensions. The journal that matches the needle bearing directly acts as the rolling surface. As the axis of the raceway surface, the hardware must be hardened and ground, and only when it is processed to an appropriate size and shape accuracy the entire set of needle roller bearings can have high life and running accuracy. At the same time, since there is no inner ring, the diameter of the shaft can also be appropriately increased, which also increases the rigidity.
Sealed needle roller bearing with or without inner ring of needle bearing
Single-sided or double-sided sealed needle roller bearings can effectively prevent the intrusion of dirt. The needle bearing has been filled with the right amount of lithium-based grease. The inner ring of this type of bearing is wider than the outer ring, which allows the bearing to ensure good sealing and avoid bearing contamination when the shaft is slightly displaced concerning the needle-bearing housing. The inner ring of the bearing also has a lubrication hole, which can be relubricated by the outer ring or the inner ring according to the needs of the configuration.
Stamped needle roller bearing (Drawn cup needle roller bearing)
Stamping bearings are also called stamped needle roller bearings or drawn cup needle roller bearings.
Drawn cup roller bearings are designed to support radial loads and reduce friction between rotating parts. Stamping bearings have a small cross-section and can provide maximum load capacity in the smallest space. It is easy to press it into the bearing seat during installation. It is very convenient. The needle roller bearing has two designs full-load needle roller and belt cage, both with a stamped outer ring. As the outer race of the needle roller, the needle roller type stamped outer ring needle roller bearing has the most significant number of needle rollers and is retained by the stamped outer ring. The cost is low, and the radial load carrying capacity is ample. The standard cage type stamping is external. The needle roller bearing consists of a steel cage used to guide and maintain the needle roller. It is characterized by fast operation and strong oil film retention.
Cage of needle bearing, thrust bearing, Journal bearing
A cage of needle bearing that partially encloses all or part of the rolling elements and moves along with the needle bearing components to isolate the rolling elements, usually also guiding the rolling elements and holding them in the bearings. When the shaft and the bearing housing can be used as raceway surfaces, they can be used as a set of independent bearing elements. The needle bearing has a small cross-section but has a high load capacity, so it is very suitable for bearing arrangements with limited radial space.
Thrust bearing, Flat bearing roller bearing
Flat bearings, thrust bearings are also known as flat needle roller bearings or thrust flat needle roller bearings. The thrust has radial compact construction, while flat needle roller bearings with the same diameter and load capacity as other types of bearings, the outside diameter is smallest, especially suitable for the diameter mounting size limited support structure. Thrust surface needle roller bearings can be selected according to the use of different occasions, the use of bearings or needle roller and cage assembly without the inner ring, at this time with the bearing journal bearing surface and the housing hole surface directly as the bearing inner and outer rolling surface, to maintain the load capacity and running performance are the same as those of a bearing with a ring bearing. The hardness of the raceway surface of the shaft or shell hole, the machining accuracy, and the surface quality should be like the raceways of the bearing ring. This type of bearing can only withstand radial loads. The flat thrust needle roller bearing comprises a flat cage assembly with a needle roller, a cylindrical roller, and a flat washer.
The main models are AXK/AX/AXW/NTA flat thrust needle roller and cage assemblies, K811/K812/K89 etc., and the thrust cylindrical roller and cage assemblies.
Full roller bearing
One-way bearing, one-way needle roller bearing, one-way needle roller clutch, various types of HF, HFL, FC, FCB, RCB, RC, F, IWC, EWC, DC, CSK, CKB (B200), ASNU, CKA, FWD, NF.
The internal and external structures can be flexibly changed according to different demands. The outer ring is made of precision stamping alloy steel. After special treatment, the wear resistance is enhanced to have a strong bearing capacity. The retainer uses PA66 high toughness to guide a 2μm needle roller for better bearing rigidity and precise rotation performance, and maximum torque transmission.
The perfect design allows one-way bearings, one-way needle roller bearings, and one-way needle roller clutches to operate long-term within the temperature range of -30°C to 120°C. The advantage is that when the one-way bearing, the one-way needle roller bearing and the direction of the arrow on the side of the one-way needle roller clutch rotate relative to the shaft, the clutch locks itself.
Cam follower needle roller bearing
Cylindrical Roller Bearings (Short Cylindrical Single Row Roller Bearings) Features:
Cylindrical roller bearings are usually only subjected to radial forces. Compared with the same size ball bearings, radial load capacity increased 1.5-3 times, rigidity, impact resistance, cylindrical single row roller bearings cylindrical roller bearings are particularly suitable for rigid supported, but also support the short axis, the shaft that causes axial displacement due to heat elongation and the machine accessories that require separate bearings for installation and disassembly. The cylindrical roller bearings are mainly used for large motors, machine tool spindles, front and rear engine support shafts, train passenger carriages, shaft support, diesel engine crankshaft, automotive tractor gearbox, etc.
Combined bearing
The combined bearing is a rolling bearing in which a combination of two or more bearing structures described above is combined in a bearing. The combined bearing is a positioning or unidirectional positioning bearing with the most diminutive radial cross-section height. It is used in transmission engineering and machine tools such as a drilling spindle, centring axis, drill sleeve, worm, CNC machine tools, dies and spindle bearings and similar applications.
Such as NKXR / ZARN needle roller and thrust cylindrical roller bearings, NKX / NX needle roller and thrust ball bearings, NKIA / NKIB needle roller and angular contact ball bearings.
Bearing ring
Needle bearing and shaft
