NTN 7903UC angular contact ball bearing

NTN 7903UC is a reference of angular contact ball bearing, within Bearings. Request a quote for 7903UC via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NTN UC series angular contact ball bearing is a precision component designed to carry combined radial and axial loads in a single direction. Its angular contact raceway design allows smooth, precise operation in applications requiring high rigidity and accuracy. It is ideal for machine tool spindles, pumps, compressors and power transmission equipment that run at high speeds and demand careful mounting.

The UC series designation is read from the number that precedes it: the first two digits indicate the bore diameter according to an established code, and the next two correspond to the outside diameter. The UC suffix identifies NTN's angular contact series, with a specific raceway and ball configuration that gives it its load and speed characteristics.

In Argentine industry, these bearings are used in machine tool spindles, milling machine heads, centrifugal pumps, screw compressors, high-speed electric motors and power transmission equipment. They are common in metallurgical, food and textile plants and in the automotive sector, where precision and reliability under combined loads are required. Their ability to carry axial loads in one direction makes them suitable for paired arrangements or in combination with other bearings.

To correctly select an angular contact bearing, take into account the magnitude and direction of the loads, the rotational speed, the lubrication and the type of sealing. Mounting must ensure precise alignment and adequate axial clearance, since these bearings are not self-aligning. Lubrication can be with grease or oil, depending on the application, and it is essential to maintain cleanliness during installation to avoid contaminants that reduce service life.

NTN UC series bearings are interchangeable with those of other brands that follow the same international angular contact designation. When looking for a replacement, check the main dimensions (bore, outside and width) and the load ratings, which can vary between manufacturers. If you have another brand's part number, we can quote you the exact equivalent or the compatible alternative that best suits your equipment.

To request a quote for the NTN UC series bearing you need, send the complete part number by WhatsApp to MR Accesorios Industriales. We will reply shortly with the commercial and technical information you require. We can also advise you on selection if you tell us the operating conditions of your application.