Spherical Roller Bearing for FAG

Product Details

Spherical roller bearing for FAG have two rows of rollers, which mainly bear radial loads and can also bear axial loads in any direction. It has high radial load capacity and is especially suitable for working under heavy load or vibration load, but it cannot bear pure axial load. The outer ring raceway of this type of bearing is spherical, so its alignment performance is good and it can compensate for coaxiality errors. There are two rows of symmetrical spherical rollers. The outer ring has a common spherical raceway. The inner ring has two raceways that are inclined at an angle to the bearing axis. It has good alignment performance. When the shaft is bent due to force or the installation is not concentric, The bearing can still be used normally. The alignment performance varies with the bearing size series. Generally, the allowable alignment angle is 1 to 2.5 degrees. This type of bearing has a larger load capacity. In addition to being able to withstand radial loads, the bearings can also withstand Bidirectional axial load has good impact resistance. Generally speaking, the allowable operating speed of spherical roller bearings is lower.

 

 

Spherical roller bearing for FAG are divided into two different structures: symmetrical spherical rollers and asymmetrical spherical rollers according to the roller cross-section shape. Asymmetrical spherical roller bearings are early products and are mainly used for host maintenance services. New designs Symmetrical spherical roller bearings are rarely used in main engines. The internal structure has been comprehensively improved in design and parameter optimization. Compared with the spherical roller bearings produced in the early stage, it can withstand greater axial loads. The operation of this kind of bearings The temperature is low, so it can adapt to the requirements of higher speeds. According to whether the inner ring has ribs and the cage used, it can be divided into two types, C type and CA type. The characteristics of C type bearings are that the inner ring has no ribs and uses Steel plate stamped cage, CA type Trian bearing is characterized by ribs on both sides of the inner ring and a machined solid cage. In order to improve the lubrication of the bearings, spherical roller bearings with an annular oil groove and three oil holes in the outer ring can be provided to users, represented by the bearing suffix code /W33. Spherical roller bearings with inner ring oil holes can also be supplied according to user requirements. In order to facilitate customers' loading, unloading and replacement of bearings, spherical roller bearings with a tapered inner hole can also be provided. The taper of the tapered hole is 1:12, with the suffix code K, in order to meet the requirements of special users, bearings with an inner bore taper of 1:30 can also be provided, with the suffix code K30. Bearings with a tapered inner hole can be mounted directly on the tapered journal with a locking nut, or the bearing can be mounted on a cylindrical journal with the help of an adapter sleeve or withdrawal sleeve. In order to ensure that the bearing prevents harmful slippage between the raceway and roller due to centrifugal action when running at high speed, the bearing should bear a certain minimum radial load, the size of which can be estimated as follows:

Fr =0.02C

In the formula:

Fr --minimum radial load N

C—Basic dynamic load rating N of the bearing

Equivalent dynamic load

P=Fr+Y1Fa when Fa/Fr e

P=0.67Fr+Y2Fa when Fa/Fr e

In the formula:

P—equivalent dynamic load N

Y1 Y2—axial dynamic load coefficient

Equivalent static load

P0=Fr+Y0Fa

In the formula:

P0—equivalent static load N

Y0—axial static load coefficient

 

 

Structure Type

Spherical roller bearing for FAG are divided into: cylindrical inner bore and conical inner bore. The taper of the conical inner hole is 1:12 for the rear spherical roller bearing code K (type 153000 or 113000) and 1:30 for the rear spherical roller bearing code K30. When this type of bearing is matched with a tapered shaft, the axial movement of the inner ring can adjust the radial clearance of the bearing.

 

Suffix Code

When the tapered bore spherical roller bearings coded K and K30 are installed on matching adapter sleeves, they become K+H and K30+H bearings. This kind of bearing can be installed on a smooth shaft without shoulders, and is suitable for occasions where bearings need to be installed and disassembled frequently. In order to improve the lubrication performance of the bearing, there is an annular oil groove on the outer ring of the bearing and three evenly distributed oil holes are drilled, and its rear code is W33.

 

 

Mainly applicable cage: stamped steel plate reinforced cage (suffix E, very few in China). Stamped steel plate cage (suffix CC), glass fiber reinforced polyamide 66 cage (suffix TVPB), machined brass two-piece cage (suffix MB). Machined brass integral cage (suffix CA), stamped steel plate cage (suffix JPA) for vibration situations. Brass cage (suffix EMA) for vibration situations. With the same structure, the codes on the bearings may be different.

 

Main uses: papermaking machinery, reduction gears, railway vehicle axles, rolling mill gearbox bearing seats, rolling mill rollers, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical seated spherical bearings.

 

 

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