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Angular contact ball bearing NTN 5S-2LA-HSE921UC
- Manufacturer Part Number
- 5S-2LA-HSE921UC
- Brand
- NTNOfficial distributor
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
- Series
- 5S-2LA-HSE9U
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Description
NTN 5S-2LA-HSE921UC is a angular contact ball bearing reference, within Bearings. Request a quote for 5S-2LA-HSE921UC via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
NTN HSE series angular contact ball bearings are precision components designed to carry combined radial and axial loads in applications where rotational accuracy is critical. Their high-quality raceway and ball design allows high speeds with low friction. They are used in machine tool spindles, measuring equipment and other systems requiring rigidity and repeatability. At MR Accesorios Industriales we quote them according to the exact part number you need.
The designation of these bearings is read in blocks. The prefix 5S indicates ceramic balls, which reduce weight and thermal expansion. 2LA refers to the cage and lubrication type. HSE identifies the high-speed, high-precision series. The three-digit number, as in 5S-2LA-HSE910UC, indicates the size; the examples 5S-2LA-HSE911UC and 5S-2LA-HSE912UC correspond to increasing sizes. The suffix UC defines the internal clearance and preload. Knowing these codes helps you order the correct replacement.
These bearings are used in milling machine, grinding machine and machining center spindles, where speed and precision are decisive. They are also found in metrology equipment, drill heads and positioning systems. In Argentine industry, we find them in precision machining shops, auto parts factories and production plants that demand strict tolerances. Their ability to run at high speeds makes them suitable for high-productivity processes.
To select the correct bearing, take into account the axial and radial load, the rotational speed and the required rigidity. Mounting must ensure precise alignment; any deviation affects service life. Proper lubrication, whether grease or oil, is essential to dissipate heat. Sealing or shield plates prevent contamination. Respect the specified internal clearance and preload conditions for optimum performance.
NTN HSE series bearings can be interchanged with those from other manufacturers that follow the same international high-precision angular contact nomenclature. When looking for equivalents, verify dimensions, load capacity and clearance. Interchangeability is not automatic: always confirm the technical specifications. If you have doubts, our technical team can advise you.
If you need a bearing from this series, write to us on WhatsApp with the complete part number, for example 5S-2LA-HSE915UC. At MR Accesorios Industriales we'll quote it for you shortly. We can also help you if you have an unidentified part or a part number from another brand. With more than 80 years in the market, we are your partner for precision components.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 105 mm
Frequently Asked Questions
- What does the 5S prefix mean in these bearings?
- The 5S prefix indicates that the bearing uses ceramic balls instead of steel. This reduces weight, improves corrosion resistance and reduces thermal expansion, which allows higher speeds and precision in demanding applications.
- How do I choose the right UC suffix?
- The UC suffix defines the internal clearance and the preload level. The choice depends on the load, speed and required rigidity conditions. To select the most suitable one, consult our technical team indicating the application and the complete part number.
- Are they interchangeable with bearings from other brands?
- They can be interchangeable with bearings from other manufacturers that follow the same nomenclature and specifications. However, it is essential to verify dimensions, load capacity and internal clearance. Always confirm the technical data before replacing.

