Engraving machines can help complete many engraving processes, which cannot be separated from the spindle bearings to transmit power.

In order to make the operation of the engraving machine more stable, the spindle bearings are generally installed in pairs, which determines that the performance of the engraving machine is richer and more stable. So what are the general pairing methods?

Engraving machine spindle bearing pairing method

1.Back-to-back (DB) pairing, with the outer rings of the bearings facing each other, the contact angle forms a V shape, which is suitable for use in situations with bidirectional axial loads and high rigidity requirements, such as high-precision, high-rigidity spindle systems.

2.Face-to-face (DF) pairing, with the inner rings of the bearings placed opposite to each other, the contact angle is in an inverted V shape, which can compensate for shaft deformation and tilt tendency, and is suitable for use in systems with medium precision requirements.

3. Tandem (DT) pairing: the bearings are arranged in series and the contact angles are in the same direction. They are suitable for use in situations where they bear unidirectional axial loads and high speed requirements, such as high-speed rotating systems.

What are the matching combinations of spindle bearings for engraving machines?

1. Cylindrical roller bearings are paired with cylindrical roller bearings, which can withstand large radial loads and certain axial loads, and have good load-bearing capacity and rigidity data.

2. Angular contact ball bearings are paired with angular contact ball bearings and are suitable for situations where radial loads and axial loads need to be borne. They have the advantages of high rotation accuracy and high stability.

3. Tapered roller bearings are paired with tapered roller bearings and are suitable for situations where radial loads and axial loads are required. They are often used in high-speed equipment.

4. Deep groove ball bearings are paired with thrust bearings and are suitable for situations where they bear large radial loads and axial loads. Thrust bearings can bear axial loads and reduce the load pressure of deep groove ball bearings.

Spindle bearing pairing installation guide

1. Clean the bearings and other related parts to make sure there are no impurities left. Check the condition of the bearings. Bearings with quality problems cannot be used.

2. Install the bearings on the spindle of the engraving machine according to the selected pairing combination. Adjust the clearance of the bearing washers so that the inner and outer washers are evenly stressed and the preload on the bearings is even.

3. After installing the bearings, tighten the front and rear nuts and install the front and rear end covers. Here, pay attention to the air inlet, water inlet, and water outlet sealing rings are intact and placed in the correct position.

4. After the installation is completed, check whether the spindle is installed in place and debug it to ensure that the engraving machine equipment runs smoothly, without abnormal sounds or temperature rise.