The type of different shapes of the correlation bearing sealing ring

YX-well retaining ring product use: This standard is suitable for use in the use of YX seals when the cylinder working pressure is greater than 16 MPa, or when the cylinder is eccentric, the effect of protecting the seal.The V-type seal is typically installed in the groove of the outer or inner circle as a tummer. .

Hole with YX seal product use: used to reciprocate the seal of the piston in the hydraulic cylinder. In order to protect the effect of dust-proof, the bearings often see different bearing seals on different bearings, such that components can make the bearings to obtain good sealing effects, indirectly protect the use of the bearings and life.

Therefore, the type of different shapes of the correlation bearing sealing ring and the targeted role are given to you. The use of YX-type retaining ring products: This standard is suitable for use in the use of YX type seals when the cylinder working pressure is greater than 16 MPa, or when the cylinder is eccentric, the effect of protecting the seal.

A bearing seal, a bearing seal, in particular a ball bearing seal, a ball bearing sealing ring that extends two rounded projections over one end surface of the circle shape, the diameter smaller non-standard bearing factory The inner diameter of the projection is fitted to the outer diameter of the inner ring of the ball bearing, the diameter of the raised bumps cooperate with the bearing outer diameter of the ball bearing; the inner hole diameter of the seal is not smaller than the ball bearing inner ring Inner aperture.

O-type rubber seal product use: This standard O-type rubber seal is suitable for hydraulic aerodynamic systems and various mechanical equipment and components, in the specified pressure, temperature, and different liquids and gas media, still or Sealed effects in motion.Widely used in the bearing. Different types and effects of the bearing seal, the V-type seal is an axially active elastic rubber sealing ring for a shaft pressureless seal. The Y-type seal is widely used in a replicating sealing device

High speed prevents rollers in the full roller bearing

In order to adapt to this demand, the high-load capacity cylindrical roller bearing (as shown in Figure 1), since the rolling body diaphragm is used instead of the holder, so that the rotational performance does not increase the load capacity, the rated life has reached the original product 1. 3, operability Even if the inner ring does not cause the roller to fall off, the inner ring and outer ring assembly can be installed, respectively, and can be easier China tensioner bearing kit to install the machine. .

The structure of new products and original products compares through new products and original product performance comparison, the high-load capacity cylindrical roller bearings of new products have the following advantages: 1, long life, sizes and The number is best, increases the load capacity, and the bearing rated life is 1.

And on the insulation of each other, since the tension generated by the roller clutch diffusion does not work, the thickness can be thinned, thereby increasing the size and number of rollers.The wind turbine speed machine is installed on a high place, and it is difficult to maintain maintenance, so the life and reliability of the bearing of the speedometer are high.5 times the rated life of the bearing with the non-changing bearing of the original dimension.

High speed prevents rollers in the full roller bearing, preferably to optimize the shape and guidance method of the spacer, to achieve the same allowable rotation speed and scratch with the bearing with the holder Injury. In recent years, wind turbines have become larger and larger, in order to reduce the load of tower, trying to make the generator cabin small and light weight, so the demand for bearings with high load capacity is further increased.

The two rows of rollers in the bearing are arranged in a crossed manner

They are held by a seat ring with lubricating oil holes, two shaft washers, a spacer ring and two sets of steel balls.1. Deep groove ball bearings This type of bearing is generally only used to bear radial load. Cylindrical bore bearings are usually hot-mounted to reduce the bearing clearance by using interference fit, or to achieve the purpose of preloading.

As a new structure, it is currently mostly used for spindles such as grinding machines, lathes, boring machines, milling machines, drilling machines, etc. Choosing a suitable spacer height can make the bearing have the required preload after assembly. Above, it is often combined with double row cylindrical roller bearings in use.

For NNU49 series bearings with a separable inner ring, the raceway is generally processed after the inner ring is equipped with a spindle to obtain high spindle rotation accuracy. However, the manufacturing process of this kind of bearing is complicated, and the requirements for the lubrication system of the machine tool are also high, and it is generally only used on the horizontal spindle with special requirements.

Tapered roller bearings can bear radial and axial loads at the same time,Wholesale bearing mechanical and double-row tapered roller bearings can bear two-way axial loads. Hollow tapered roller bearings can use oil to cool the rollers to reduce the temperature rise and increase the allowable speed.

Since the clearance is not adjustable, it is often used in occasions that require low precision and do not need preload, such as ordinary drilling machine spindles., and the rigidity of the main shaft can be improved by pre-tensioning. The two rows of rollers in the bearing are arranged in a crossed manner, the fluctuation frequency during rotation can be doubled compared with the single row bearing, and the amplitude is reduced by 70%. 

The clearance meets the 3 groups specified by the standard

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

The temperature difference between the inner and outer rings is large

When the shaft is moved with a crowbar to make the shaft in two extreme positions, the difference between the dial indicator readings is the axial clearance of the bearing. The size of the clearance (called the working clearance) during operation has an impact on Wholesale roller bearing manufacturers the bearing's rolling fatigue life, temperature rise, noise, vibration and other properties. 2. The matching of the outer ring of the bearing and the housing hole.

When the rotation accuracy is high or the axial displacement needs to be strictly limited, a small clearance group should be used. The operation method is the same as the method for checking radial clearance with a plug, but the axial clearance should be c=λ/(2sinβ) where c——axial clearance, mm; λ——thickness of feeler gauge, mm; β——bearing cone angle, (°). Note: The reduction in radial clearance is related to the actual effective interference of the matching parts, the matching shaft diameter, and the wall thickness of the housing hole.

However, the force applied to the crowbar cannot be too large, otherwise the shell will be elastically deformed, even if the deformation is small, it will affect the accuracy of the measured axial clearance. The bearing clearance standard is not regulated by the country and depends on the use situation: it is still a very complicated problem, which is briefly described as follows: A. This method is used when the shaft end is exposed.

Bearing clearance is also called bearing clearance. When the shaft end is closed or cannot be checked with your fingers for other reasons, you can check whether the shaft rotates flexibly. Check with a dial indicator.. A tighter fit is adopted, the temperature difference between the inner and outer rings is large, and the friction torque needs to be reduced. According to the direction of movement, it can be divided into radial clearance and axial clearance

Can bear radial load and bidirectional axial load

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.