FAG BSB055120-T super precision bearing

FAG BSB055120-T is a reference of super precision bearing, within Bearings. Request a quote for BSB055120-T via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The FAG BSB-T series super precision bearing is a component designed for extreme precision and rigidity requirements. It is used in machine tool spindles, rotary tables and measuring equipment where running error must be minimal. Its high-accuracy construction allows high speeds with low friction and controlled temperature. MR Accesorios Industriales sells this line for industrial applications that require reliability and repeatability.

The BSB-T series designation is read in blocks: the letters BSB identify the family of super precision bearings for spindles, and the -T suffix indicates a design with a synthetic material cage or a design optimized for high speeds. The numbers that appear in the examples, such as BSB040090-T or BSB060120-T, encode main dimensions: the first digits usually refer to the bore diameter and the following ones to the outer diameter or the width, depending on the manufacturer's standard. To select the right part number, it is essential to consult the drawings or the machine data sheet.

These bearings are used in milling machine, grinding machine and machining center spindles, as well as in precision tables, measuring heads and optical equipment. In Argentine industry, they are common in high-precision machining shops, auto parts factories and electronic component production plants. They also appear in balancing machines and dynamic testing equipment, where axial and radial rigidity is critical for process quality.

To choose correctly, you must consider the mounting arrangement: these bearings are usually installed in pairs, with a defined preload, and require an interference fit on the shaft and in the housing. Sealing and lubrication are key: a high-speed, low heat-generating lubricant is recommended, and alignment should be checked with precision instruments. Cleanliness of the mounting environment prevents contamination that degrades service life. Always follow the manufacturer's instructions for axial and radial clearance.

As for equivalences, super precision bearings from other brands may have different designations but standardized dimensions. There is no universal interchangeability table: each manufacturer defines its own tolerances and preloads. Therefore, when looking for a replacement, it is essential to compare not only the bore, outer and width dimensions, but also the precision class and the cage type. MR Accesorios Industriales can advise you with the available technical information.

If you need an FAG BSB-T series super precision bearing, write to us on WhatsApp with the complete part number or your equipment model. At MR Accesorios Industriales we will reply shortly with the quote. We can also help you identify the right designation if you send us a photo or the application data.