SKF QJ 212 angular contact ball bearing

SKF QJ 212 is a reference of angular contact ball bearing, within Bearings. Request a quote for QJ 212 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF QJ series angular contact bearing is a four-point ball bearing, designed to withstand combined radial and axial loads in both directions. It is used in applications requiring high precision and rigidity, such as machine tool spindles, gearboxes and transmission equipment. Its four-point contact design allows for a high tilting moment and a large axial load capacity. At MR Accesorios Industriales we sell it as part of our SKF bearing line.

The QJ series designation is interpreted as follows: the letters QJ identify a four-point angular contact ball bearing. The number that follows, as in the example QJ 212, indicates the bearing size according to the bearing numbering system: the last two digits correspond to the bore diameter in millimeters (12 × 5 = 60 mm in this case). There are not always additional suffixes, but letters may appear indicating design variants, such as brass cage, internal clearance or special heat treatment. To know the exact characteristics of each item, it is necessary to consult the corresponding product page.

These bearings are used in Argentine industries such as metalworking, food, petrochemical and mining. They are common in milling machine, drilling machine and grinding machine spindles, as well as in speed reducers, gearboxes and lifting equipment. Their ability to withstand axial loads in both directions makes them suitable for applications requiring rigidity and precision, such as rotary tables and machine tool shafts. They are also used in high-pressure pumps and compressors.

To select a QJ bearing, take into account the radial and axial load it must withstand, the rotation speed and the environmental conditions. It is essential to verify the appropriate internal clearance and the type of sealing: these bearings are usually open, so they require external lubrication and protection against contaminants. Mounting must be done with precise alignment and a hydraulic press or induction heater, avoiding blows that damage the raceways. Lubrication can be with grease or oil, depending on the application, and it must be kept clean and in sufficient quantity.

Regarding equivalences and interchangeability, SKF QJ series bearings can be replaced by products from other brands that follow the same designation and standardized dimensions. It is important to verify tolerances and internal clearance, as they may vary between manufacturers. Always consult a specialist before replacing a bearing, to ensure compatibility and performance. At MR Accesorios Industriales we can advise you on the appropriate options.

If you need an SKF QJ series angular contact bearing, send us the complete part number via WhatsApp. At MR Accesorios Industriales we help you identify the right product and request a quote. We can also advise you on mounting, lubrication and specific applications. Do not hesitate to contact us.