NR-FAG bearing with stop groove and stop ring on the outer ring. FA——Steel solid cage, outer ring guide. Mainly refers to cylindrical roller FAG bearings and deep groove ball FAG bearings with inner diameter d>60mm. LA——Light metal solid cage with outer ring guide. Example: 6207N. Example: 6207. Example: GS.2ZRN.790144-FAG bearing can be used for high temperature and low speed, after special heat treatment, steel stamping and riveting cage, large clearance, after phosphating treatment, grease injection, the service temperature can exceed 270℃. M, M1-brass solid cage.

A or B is placed after the cage code, A means the cage is guided by the outer ring, and B means the cage is guided by the inner ring. Post code-Clearance C1-Clearance meets the standard requirements of 1 group, less than 2 groups.3541). Example: NU207V.ZB. N-FAG bearing with stop groove on the outer ring. For example, 31314A. For example, B7004C. VT——Full complement rolling element FAG bearing with isolation ball or roller.160——6212FAG bearing, axial clearance 120μm to 160μm. Example: 6207ZRN.

K2——Two sets of deep groove ball FAG bearings are installed in pairs to bear bidirectional axial load. Example:Mechanical roller bearings manufacturers 6207. K30-taper bore FAG bearing, taper 1:30. K7-Two sets of angular contact ball FAG bearings are installed back to back without clearance (O-type installation).ZB-cylindrical roller with convexity with a diameter greater than 80mm.

FP——Steel solid window type cage.20——6210FAG bearing, radial clearance 10μm to 20μm.81108R-FAG bearing without separable inner ring or outer ring.HG.K5. K4——Two sets of deep groove ball FAG bearings are installed face to face without clearance (X-type installation). WS-Thrust cylindrical roller FAG bearing ring. .K5.81112. Example: 2308K. When installing bearings belonging to the same group, the installation should be carried out in accordance with the markings and positioning lines.

C3——The clearance meets the 3 groups specified by the standard, and is greater than 0 group. Z52JN.F3. Post code-Sealing and dustproof RSR-FAG bearing has a sealing ring on one side.HG clip cloth handed to the pocket solid cage, outer ring guide, accuracy grade HG

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Two single-row angular contact ball bearings combined on the back of the structure share the inner ring and outer ring, which can bear radial load and bidirectional axial load. Sealed type bearings without filling groove. Mainly applicable cage: steel stamping cage (bowl shape.. Deep groove ball bearing. The most representative rolling bearing, widely used.

Can bear radial load and bidirectional axial load. Suitable for high-speed rotation and occasions requiring low noise and low vibration. Sealed bearings with steel dust caps or rubber seals are pre-filled with an appropriate amount of grease. Bearings with a stop ring or flange on the outer ring, which are easy to locate in the axial direction, and are easy to install in the housing.

The size of the maximum load bearing is the same as the standard bearing, but there is a filling groove in the inner and outer rings, which increases the number of balls and increases the rated load.Mainly applicable cage: steel stamping cage (wave, crown shape. Woodworking machinery, textile machinery drive shaft, vertical belt seat self-aligning bearing.

The cylindrical roller is in line contact with the raceway, and the radial load capacity is large, that is, it is suitable for bearing heavy loads and impact loads, and also suitable for high-speed rotation. N-type and NU-type can move axially, and can adapt to thermal expansion or installation errors. According to the difference of the internal structure, it is divided into four types: R, RH, RHA and SR mechanical bearings manufacturers Since the arc center of the outer ring raceway is consistent with the bearing center, it has self-aligning performance, so it can automatically adjust the axis misalignment caused by the deflection or misalignment of the shaft or housing.

Can bear radial load and bidirectional axial load. According to the state of the bearing, the clearance can be divided into the following three types: Original clearance. The clearance in the free state before the bearing is installed.2RS, 23. The maximum amount of movement in the radial direction is called radial clearance, and the maximum amount of movement in the axial direction is called axial clearance. 

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After assembly, the fixed end surface of the guide post should keep a distance of 1~2mm from the lower plane of the lower mold base. When using the B-type guide sleeve, the fixed end surface after assembly is 1~2mm lower than the upper plane of the upper mold base..05mm within the full length. The mold should be tested under the conditions produced, and the punched parts should meet the design requirements.

The matching clearance of the punch and the die should meet the design requirements, and the contour should be uniform along the entire edge. After the assembled mold base, the upper mold base should move up and down along the guide column smoothly without blocking. After the mold handle is installed in the upper mold base, the perpendicularity error of its axis line to the upper plane of the upper mold base shall not exceed. The upper plane of the upper mold base should be parallel to the bottom plane of the lower mold base. The positioning device must ensure correct and reliable positioning.

The matching clearance value of each pair of guide posts and guide sleeves installed in the mold base should meet the specified requirements.The unloading and top piece device is flexible and correct, and the discharge hole is unobstructed to ensure that the parts and waste are not stuck in the die.The closed height of the assembled die should meet the design requirements.After the Wholesale INA Bearings Suppliers guide post and the guide set are matched, their axis lines should be perpendicular to the bottom plane of the lower mold base and the upper plane of the upper mold base respectively.

The oxidation treatment of steel and alloy is also called bluing or blackening treatment. Because of its low cost, high efficiency, fast yield, stable process, convenient operation and simple equipment, the application range is very wide. Once quality problems occur during acceptance or use, it is convenient for quality accident analysis and improvement.

There are many factors that affect the quality of the coating, such as: pre-plating, the method and degree of purification of the plating solution, the rationality of the pre-plating method, the establishment of the plating solution system, the determination of combination and thickness, and the process parameters (PH value, temperature, current density) , Additives (brightener, leveling agent, stress reliever, wetting agent, dispersant), plating solution analysis and replenishment system, operation system, post-plating treatment (dehydrogenation, sealing), etc. 

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