
NTN 2A-BST40X90-1BLXL thrust ball bearing de contacto angular
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Thrust ball bearings
- Series
- 2A-BST
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
NTN 2A-BST40X90-1BLXL is a reference of thrust ball bearing de contacto angular, within Bearings. Request a quote for 2A-BST40X90-1BLXL via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The NTN 2A-BST series angular contact thrust ball bearing is a component designed to withstand high axial loads in a single direction, with a load capacity higher than that of conventional thrust ball bearings. It is used in applications requiring high axial rigidity and precision, such as machine tool spindles, rotary tables and measuring equipment. MR Accesorios Industriales sells this series.
The 2A-BST series designation is read as follows: the prefix 2A indicates the two-row angular contact design, while BST identifies the angular contact thrust ball series. The numbers that follow correspond to the bore and outside diameter in millimeters. The suffix 1BLXL indicates a version with light preload and high-speed lubrication.
These bearings are typically used in machine tool main spindles, milling heads, coordinate tables, precision measuring equipment and positioning systems that require high axial rigidity. In Argentine industry, they are found in the metalworking, automotive and aerospace sectors and in the manufacture of precision machinery. Their ability to withstand axial loads in a single direction makes them ideal for applications where axial displacement must be controlled accurately.
To correctly select a bearing from this series, it is essential to consider the direction of the axial load, its magnitude and the rotational speed. Mounting requires precise alignment between the shaft and the housing, since these bearings are sensitive to misalignment. Suitable lubrication is recommended, whether grease or oil, and the axial clearance should be checked according to the operating conditions. Sealing will depend on the environment: in contaminated environments, configurations with additional protection should be chosen.
As for equivalents and interchangeability, NTN angular contact thrust ball bearings can be replaced by products from other brands that follow the same dimensional nomenclature, such as SKF, FAG or NSK, as long as tolerances and load capacities are respected. It is important to verify the critical dimensions and operating conditions before replacing one brand with another. For an exact equivalent, it is advisable to consult a specialist who can analyze the full part number and technical specifications.
If you need a quote for an NTN 2A-BST series thrust ball bearing, write to us on WhatsApp with the part number or size you require. At MR Accesorios Industriales we will quote it promptly and advise you so you find the right solution for your application.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the 1BLXL suffix mean on 2A-BST bearings?
- The 1BLXL suffix indicates a special version with light preload and lubrication for high speeds. This configuration improves rigidity and reduces noise in precision applications.
- Can I replace an NTN 2A-BST bearing with one from another brand?
- Yes, as long as the other brand offers an angular contact thrust ball bearing with the same dimensions and load capacity. It is important to verify tolerances and the mounting type.
- How do I request a quote for a specific size in the 2A-BST series?
- Write to us on WhatsApp with the full part number or the bore and outside diameters you need. We will quote it promptly and let you know the availability.

