SKF QJ 306/P63VG003 angular contact ball bearing

SKF QJ 306/P63VG003 is a reference of angular contact ball bearing, within Bearings. Request a quote for QJ 306/P63VG003 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF angular contact bearing of the QJ series is a ball bearing with raceways that allow it to support radial and axial loads in a single direction. It is used in applications requiring high precision and rigidity, such as machine tool spindles, pumps and gearboxes. Its four-point contact design allows it to accommodate axial loads in both directions, making it versatile for assemblies that combine forces. At MR Accesorios Industriales we carry it as part of our SKF bearing line.

The QJ series designation is interpreted as follows: the letters QJ identify a four-point contact ball bearing, with one row of balls and a split inner ring. The number that follows indicates the bore diameter according to the SKF coding system; for example, in QJ 306, the 06 corresponds to a diameter of 30 mm. The suffixes provide additional information: P6 indicates dimensional and running tolerance according to class 6, VG003 refers to a special lubrication with high-temperature grease, and the final 3 may indicate a cage or internal design variant. To correctly interpret each case, it is essential to consult the complete designation.

This type of bearing is used in Argentine industries such as metalworking, food and petrochemical. It is commonly found in main spindles of milling machines and grinding machines, in process centrifugal pumps, in screw compressors and in high-ratio gearboxes. It is also used in material handling equipment and in textile machines. Its ability to support axial loads in both directions makes it suitable for assemblies where a single row of bearings is required for combined loads.

To correctly select a QJ bearing, take into account the magnitude and direction of the loads, the rotation speed and the environmental conditions. It is important to verify the internal clearance suitable for the application and the type of lubrication: the QJ series can be supplied with grease or oil, and in some cases with shields. During mounting, ensure precise alignment between the rings and avoid impacts that could damage the raceways. Lubrication must be the specified one and renewed according to the maintenance plan.

As for equivalents, four-point contact bearings from other brands can be interchanged if dimensions and tolerances match, but it is essential to verify the complete designation and the service conditions. SKF is a world reference brand, and at MR Accesorios Industriales we carry it as part of our bearing catalogue. If you need to replace an existing bearing, the safest option is to send us the code engraved on the product to identify the exact variant.

To request a quote for an SKF bearing of the QJ series, send us the complete part number on WhatsApp. At MR Accesorios Industriales we advise you so that you select the correct variant for your application. Since 1945, we support Argentine industry with quality products and personalized technical service.