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Super precision bearing FAG BSB055090-T
- Manufacturer Part Number
- BSB055090-T
- Brand
- FAGOfficial brand
- Category
- Bearings
- Subcategory
- Special bearings
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Description
FAG BSB055090-T is a special bearing reference, within Bearings. Request a quote for BSB055090-T via WhatsApp or email with the quantity you need; we respond promptly with lead time 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 supplies 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 an execution with a synthetic material cage or a design optimized for high speeds. The numbers appearing 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, according to the manufacturer's standard. To select the correct 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 workshops, 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 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 verified 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 promptly with the quote and the available alternatives. We can also help you identify the correct designation if you send us a photo or the application data. More than 80 years supporting Argentine industry back us.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the -T suffix mean on BSB bearings?
- The -T suffix indicates a specific execution within the BSB series, generally associated with a synthetic material cage or a design optimized for high speeds. To confirm the exact feature of your part number, consult us on WhatsApp.
- How do I choose the right BSB-T bearing for my spindle?
- You need to know the shaft and housing dimensions, the running speed, the load and the type of mounting. With that data, we can guide you toward the correct part number. Write to us on WhatsApp with your machine information.
- Are FAG BSB-T bearings interchangeable with other brands?
- Dimensional equivalents may exist, but tolerances and preloads vary between manufacturers. There is no universal table. For a safe replacement, compare the technical specifications and consult us; we will help you evaluate alternatives.

