Single-row FAG tapered roller bearings have tapered inner and outer ring raceways. Tapered rollers are generally separated by stamped cages between the inner and outer raceways. This type of product can withstand combined radial and axial loads, and the bearing's ability to withstand axial loads is determined by the contact angle α. The greater the α, the higher the ability to withstand axial loads.
Single-row FAG tapered roller bearings are separate bearings, which are installed by the inner ring assembly and outer ring with roller cage. This type of bearing installation requires some technology.
Install the outer ring of the bearing into the bearing housing hole as shown below. Generally, there is a gap between the outer diameter of the bearing and the hole of the bearing seat. It is easy to push the outer ring into the inner hole of the bearing.
Pay attention to the perpendicularity of the outer ring and the axle box, and ensure that the end face of the outer ring contacts the hole shoulder of the axle box after installation.Use appropriate tools to install the bearing internal components on the journal (such as sleeve). Note that the pressure must not act on the roller or cage.
Use suitable tools to install the shaft into the bearing housing, and the preliminary installation is completed. Be careful not to damage the outer ring raceway, roller and cage.
According to the axial clearance marked in the drawing, adjust the matched bearings as follows. Generally, the axial clearance can also be adjusted within the range of +0.02 to + 0.10mm.◆ Use a wider spacer ring to make the axial clearance after preliminary adjustment slightly larger than the set value.◆ According to the difference between the initial adjusted measured value and the set value, the width of the spacer ring to be reduced can be calculated to obtain the required axial clearance.◆ Place the dial indicator on the shaft end, the shaft is pushed firmly to one of the shaft ends, turn the shaft a few times to ensure that the end face of the roller contacts the rib of the inner ring. Record the dial indicator reading. Push the shaft in the opposite direction in the same way and record the reading. The difference between the two sets of data is the measured axial clearance.◆ The width of the spacer ring can be calculated by the following formula: width reduction = measured axial clearance-set value of axial clearance◆ Remove the inner ring on the outer side and replace the spacer ring that fits the size.
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