Four-point contact bearing FAG QJ315-XL-N2-MPA

FAG QJ315-XL-N2-MPA is a angular contact ball bearing reference, within Bearings. Request a quote for QJ315-XL-N2-MPA via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The four-point bearing is an angular contact ball bearing with a particular geometry: the outer race is split and allows a single row of balls to work with two opposing contact points. It supports radial loads, axial loads in both directions and moments, so it is used in applications where forces must be combined and rigidity maintained. MR Accesorios Industriales supplies the FAG brand in Buenos Aires, Argentina.

The designation of this series is read in blocks. The letters QJ identify the four-point family. The number that follows indicates the size: in the examples QJ315, QJ1017, QJ1019 and QJ1021, the first two digits indicate the dimension series and the remaining ones the bore diameter. The suffix XL corresponds to the current generation of the product. Then variants such as N2 and MPA appear, which refer to grooves or cages depending on the design. For each size, the complete code defines the bearing.

In Argentine industry, these bearings appear in machine tools, spindles, gearboxes, lifting equipment and mechanisms where loads change direction. They are also found in precision applications that require a bearing capable of absorbing axial forces in both directions without adding another bearing. Their moment capacity makes them useful in assemblies where space is limited and the goal is to simplify the unit.

To select a four-point bearing, consider the radial and axial load, the rotation speed and the required rigidity. Mounting requires good alignment of the supports and control of the internal clearance, because the split race is sensitive to mounting errors. Lubrication must be suitable for the temperature and speed; in many cases a high-quality grease is recommended. Sealing will depend on the environment: in the presence of dust or moisture, the bearing should be protected.

Four-point bearings from different brands can be interchanged if the main dimensions and the race design match. Equivalences are established by catalogue number and suffixes, but each manufacturer may have variants in cages or tolerances. Therefore, before replacing a bearing, it is important to verify the complete code and the operating conditions. MR Accesorios Industriales can advise you on the right equivalence.

If you need a FAG four-point bearing, write to us on WhatsApp with the code or model you are looking for. At MR Accesorios Industriales we reply shortly with the technical information and the corresponding quote. We can also help you identify the correct designation if you have doubts about the series or the suffixes.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.