NTN 5S-7003ADLLB angular contact ball bearing

NTN 5S-7003ADLLB is a reference of angular contact ball bearing, within Bearings. Request a quote for 5S-7003ADLLB via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NTN 5S-79 LLB series angular contact ball bearing is a precision component designed to support combined radial and axial loads in a single direction. Its high-speed design and its LLB seal construction make it ideal for machine tool spindles, high-frequency motors and equipment requiring rigidity and accuracy. MR Accesorios Industriales sells this line for industrial applications in Buenos Aires, Argentina.

The 5S-79 LLB series designation is interpreted as follows: the 5S prefix indicates the presence of low-friction seals; the number 79 defines the extra-thin section dimensional series; and the LLB suffix corresponds to the type of non-metallic sealing. The examples show how the size varies according to the numeric code. The 15° or 25° contact angle (depending on the variant) allows high speeds with good axial load capacity.

These bearings are used in milling machine, grinding machine and machining center spindles, where precision and speed are critical. They are also used in high-frequency electric motors, measuring instruments and optical equipment. In Argentina, the automotive, aeronautical and machine tool sectors demand this series for its reliability. MR Accesorios Industriales supplies them to workshops and industrial plants in Buenos Aires, Argentina and the rest of the country.

To select the correct bearing, take into account the axial and radial load, the rotational speed and the internal clearance. The LLB seal protects against contaminants and retains the lubricant, but its compatibility with the environment must be verified. Mounting must ensure precise alignment and adequate preload, since these bearings are usually mounted in pairs. Lubrication with high-speed grease or oil is essential to achieve the expected service life.

NTN 5S-79 LLB series angular contact bearings are interchangeable with other brands that follow the same dimensional nomenclature, such as SKF, FAG or NSK, provided the tolerances and the contact angle are respected. When replacing, verify the complete part number and the mounting conditions. If you have doubts, our technical team can advise you.

To request a quote for the bearing you need, send the complete part number or the dimensions via WhatsApp. At MR Accesorios Industriales we will give you the quote shortly and advise you so you choose the correct variant. Write to us and we will reply with the information you need for your application.