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NTN angular contact thrust ball bearing · NTN 2A-BST40X90-1B
NTN 2A-BST40X90-1B thrust ball bearing de contacto angular

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NTN 2A-BST40X90-1B thrust ball bearing de contacto angular

Manufacturer Part Number2A-BST40X90-1BAlso searched as: 2ABST40X901B · 2A BST40X90 1B
Brand
NTN
Category
Bearings
Series
2A-BST
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Since 1945 · Martínez, Buenos Aires, Argentina

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Description

NTN 2A-BST40X90-1B is a reference of thrust ball bearing de contacto angular, within Bearings. Request a quote for 2A-BST40X90-1B 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 predominantly axial loads in one direction, with a higher load capacity than 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. Its angular contact design allows combining axial and moderate radial loads, offering reliable performance under demanding conditions.

The designation of the 2A-BST series is interpreted as follows: the prefix 2A indicates the double-acting angular contact design, while BST identifies the angular contact thrust ball series. The numbers that follow correspond to the shaft diameter and the outer diameter respectively, expressed in millimeters. The suffix -1B indicates a specific design variant, generally associated with the contact angle or the cage type. This nomenclature allows quickly identifying the main dimensions and the configuration of the bearing.

These bearings are used in industries where precision and axial capacity are critical. In Argentina, they are common in CNC machine tools, presses, plastic injection equipment and high-accuracy positioning systems. They are also found in gear reducers and lifting mechanisms that need to withstand considerable axial thrust. Their robustness makes them suitable for continuous production environments, where reliability and repeatability are essential to maintain process quality.

To correctly select a 2A-BST bearing, it is essential to consider the axial load it will have to withstand, as well as the speed and lubrication conditions. Mounting requires precise alignment between the shaft and the housing, since these bearings are sensitive to angular misalignment. It is recommended to use adequate lubrication, whether grease or oil, depending on the application, and to verify the axial clearance to ensure optimal operation. Sealing will depend on the environment; in contaminated environments, additional protection may be required.

As for equivalents and interchangeability, NTN 2A-BST series bearings can be replaced by products from other brands that follow the same dimensional nomenclature and meet the same load and speed specifications. It is important to verify tolerances and the contact angle, since small differences can affect performance. When requesting a quote, provide the complete part number and, if possible, the dimensions and the application to ensure compatibility.

To get a quote for NTN 2A-BST series angular contact thrust ball bearings, contact MR Accesorios Industriales on WhatsApp. Tell us the exact part number or the dimensions you need and we will reply shortly with the required information. At MR Accesorios Industriales we are prepared to advise you on selecting the right bearing 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 2A-BST designation mean in NTN bearings?
The 2A-BST series corresponds to angular contact thrust ball bearings. The prefix 2A indicates the double-acting design and BST the thrust series. The following numbers indicate the shaft and outer diameter in millimeters, and the suffix -1B a design variant.
Where are angular contact thrust ball bearings used?
They are used in applications that need to withstand high axial loads with high precision, such as machine tool spindles, rotary tables, presses and measuring equipment. In Argentina, they are common in the metalworking and plastics industry.
How do I request a quote for NTN 2A-BST bearings?
Write to us on WhatsApp with the complete bearing part number or the dimensions you need. At MR Accesorios Industriales we will quote you shortly and advise you so that you choose the right option for your equipment.
Request a quote for 2A-BST40X90-1B via WhatsApp
Request a quote on WhatsApp