Class 0: Deep groove ball bearings

6000 6200 6300 6700 6800 6900 -N -ZZ -2RS and other industry applications: Suitable for precision instruments, low noise electrical products Features: simple structure, easy to use and maintain. It is mainly used to bear radial load, and can also bear certain axial load. When the radial clearance of the bearing increases, it has the performance of angular contact ball bearing and can bear larger axial load. This type of bearing has a small friction coefficient, high limit speed, and changes in size and form. Category 1: Self-aligning ball bearing 1200 1300 2200 2300 Industry application: suitable for precision instruments and low-noise motors Product features: Self-aligning ball bearings have cylindrical holes and cones There are two structures of holes, and the material of the cage is steel plate, synthetic resin, etc. Its characteristic is that the outer ring raceway is spherical, with automatic centering, which can compensate for errors caused by non-concentricity and shaft deflection, but the relative inclination of the inner and outer rings should not exceed 3 degrees. Category 2: Cylindrical roller bearings NU000, N0000 NJ NN NNU Industry application: Cylindrical roller bearings are mainly used in motors, machine tools, petroleum, rolling mill handling machinery and various industrial machinery. Product features: Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. Cylindrical roller bearings are divided into single row, d row and four row. Cylindrical roller bearings can be divided into single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements used in the bearing. Among them, single-row cylindrical roller bearings with cages are widely used. In addition, there are cylindrical roller bearings with other structures such as single-row or double-row full complement rollers. Single row cylindrical roller bearings are divided into N type, NU type, NJ type, NF type and NUP type according to the different rib of the ring. Cylindrical roller bearings have a large radial load capacity, and can also bear a certain one-way or two-way axial load according to the structure of the rib of the ring. NN type and NNU type double row cylindrical roller bearings are compact in structure, strong in rigidity, large in bearing capacity and small in deformation after being loaded, and are mostly used for the support of machine tool spindles. FC, FCD, FCDP type four-row cylindrical roller bearings can withstand large radial loads, and are mostly used in heavy machinery such as rolling mills. Cylindrical Roller Bearings: Can withstand heavy radial loads in high-speed operation. Cylindrical roller bearings with single row EC design have an optimized internal curve, which can improve the radial and axial load capacity of the bearing, while improving the angle and alignment of the bearing. The ability to adjust the error and improve the lubrication situation, the full complement of roller bearings that omit the cage can have the largest number of rollers. Suitable for very heavy loads and moderate speeds. Category 3: Spherical Roller Bearings -20000 Industry Application: Suitable for precision instruments, low-noise motors, automobiles, motorcycles and general machinery, etc., it is the most widely used type of bearing in the machinery industry. Product features: The outer ring raceway is spherical and has self-aligning properties, which can compensate for errors caused by misalignment and shaft deflection, but the relative inclination of the inner and outer rings should not exceed 3 degrees. 1. The outer ring raceway is spherical In part, the bearing has internal self-aligning properties to ensure the relative deflection of the cyst hole. 2. It can bear radial heavy load and impact load, as well as certain bidirectional axial load. 3. This type of bearing can limit the axial displacement of the shaft or housing within the axial clearance range of the bearing. 4. The structural principle and characteristics of this type of bearing are lower than that of the self-aligning ball bearing, and can be substituted for each other when the load capacity and limit speed are permitted. 5. Tapered bore bearings can be easily assembled and folded on the shaft through the use of fasteners or withdrawal. Type 4: Needle Roller Bearings-K, HK000, NK0000, NA0000INA Needle Roller Bearings Model: HK.Type.BK.Type.NK.Type.NKS..NA..RNA..NAO..RNAO.. Type NKI.. Type NKIS.. Type IKO Needle Roller Bearing Model: NA Type, RNA Type, TAF Type, TR Type, BR Type, KTEG Type, KTVEG Type, etc. Needle Roller Bearing Application: Widely used in automobiles, motorcycles, Mopeds, electric tools, textile machinery, agricultural machinery, industrial sewing machines, construction machinery and other fields. Needle roller bearing features: small cross section, but high load capacity, so it is very suitable for bearing arrangements with limited radial space. Needle roller bearings have a lower section height and higher load capacity. General-purpose needle-shaped retaining bearing is a kind of bearing with excellent performance at high speed. The needle-shaped roller is correctly guided by a special-shaped cage with high rigidity and precision, and the dimensional error is extremely low. Especially suitable for use in small spaces. In addition, because of their high lubricant capacity, light weight and high rigidity, they can be used in severe conditions such as high speed, impact load, etc., so they can be used in a wide range. Needle roller bearing types: can be divided into two structures with inner ring (NA) and without inner ring (RNA). Category 5: Angular contact ball bearings 7000C, 7000AC, 7000B angular contact ball bearings, can bear radial load and axial load at the same time, can also bear pure axial load, the limit speed is high. The bearing's ability to bear axial load is determined by the contact angle, the contact s is large, and the ability to bear axial load is high. The contact angle is defined as the angle in the radial plane between the line connecting the ball and raceway contacts and a line perpendicular to the bearing axis. Single row angular contact ball bearings have the following structural forms: (1) Separate angular contact ball bearings The code name of this bearing is S70000. detached, so they can be installed separately. Most of these are miniature bearings with an inner diameter of less than 10mm, which are used in devices with high requirements on dynamic balance, noise, vibration, and stability, such as gyro rotors and micromotors.