Set424 555s/552A Taper Roller Bearing 57X123X38mm

Matched Tapered Roller Bearings 

The matched single row tapered roller bearing is generally used to support high radial load and bidirectional axial load, or the shaft system needs to do two-way axial positioning and needs to achieve the given preload or clearance conditions. After matched in pair, the original axial clearance of the bearing is fixed. The user can install and use the bearing directly without adjusting the spacer, which simplifies the installation procedure and avoids the installation error. Therefore, it is widely used in all kinds of rolling mills, petroleum machinery, medium and large reducers, and other equipment.

Three arrangements of matched tapered roller bearings:

Tandem arrangement:

The contact lines run parallel to each other. In contrast to an X and O arrangement, the tandem arrangement can only support axial forces in one direction. In general, this bearing pair is adjusted against another tapered roller bearing, which supports axial forces in the opposite direction.

X (Face to face) arrangement: 

The contact lines converge relative to the bearing axis. While axial forces can be supported from both directions. The construction of the X arrangement is simple and is the most frequently used arrangement of tapered roller bearings in a matched pair. 

O (Back to back) arrangement:

The contact lines diverge relative to the bearing axis. While axial forces can be supported from both directions. The support base of O arrangement is at its largest, which is beneficial if the component with small bearing spacing must be guided with the smallest possible tilting clearance or tilting forces must be supported. Bearing arrangements in this arrangement are relatively rigid and can also support loads resulting from tilting moments.

Measurement requirements for matched pair tapered roller bearings:

1.  When measuring the assembly height of a single set bearing and the axial clearance of the matched pair, each set bearing should be rotated to ensure that the rolling body of each set bearing is in evenly contact with the raceway, and all parts of the bearings are in the correct position. If necessary, the bearing assembly height and axial clearance shall be measured under load, with 0.1 ~ 0.5kN.

2. The measuring plate shall be kept in a horizontal position, the measuring instrument shall be fixed on it, and the measuring head shall be perpendicular to it. If the height variation of the same set of gaskets is less than 0.01mm, the instrument shall select with a range of 0.001mm.

3. During the measurement, three points shall be evenly distributed along 120 degrees around the circumference, and the arithmetic means value shall be taken as the actual measurement dimension.

Why choose us?

1. Both inch series and metric series available

2. Dimension range: ID 80mm - 1200mm
   

3. Manufacturing and exporting with 15 years of experience

4. ISO approved company

5. 100% quality test of products

6. Competitive price with a short delivery time

7. Rapid response for after-sales service: within 24 hours

   
   

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