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Cylindrical roller bearing de doble hilera NTN NNU4960
- Manufacturer Part Number
- NNU4960
- Brand
- NTNOfficial distributor
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
Other brands in this category
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Description
NTN NNU4960 is a cylindrical roller bearing de doble hilera reference, within Bearings. Request a quote for NNU4960 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NNU bearing is a double row cylindrical roller bearing, designed to withstand high radial loads and high-speed rotation. It is used in machine tools, gearboxes, rolling mills and industrial equipment where precision and load capacity are critical. At MR Accesorios Industriales we quote the NNU part number you need.
The NNU designation identifies double row cylindrical roller bearings with two inner rings and one flangeless outer ring. The numbers that follow indicate the dimension series: for example, NNU4920, NNU4921 and NNU4922 share the same bore diameter and vary in width and load capacity. The suffix may include letters indicating a bronze cage, special heat treatment or internal clearance, depending on the complete part number.
These bearings are used in machine tool spindles, high-power gearboxes, rolling mill trains, large electric motors and mining and cement equipment. In Argentina, you find them in steel plants, paper mills, petrochemical plants and the automotive industry. Their double row of rollers absorbs very high radial loads with minimal deformation, which makes them ideal for assemblies where rigidity is decisive.
To select an NNU, take into account the radial load, the rotation speed and the required internal clearance. Mounting requires precise alignment of the shaft and the housing, and adequate lubrication: oil or grease depending on the operating conditions. Sealing of the assembly is external, since the bearing does not incorporate seals. The machined bronze cage is common in these series and helps with heat dissipation.
NTN NNU bearings are interchangeable with those of other brands that follow the same dimensional nomenclature, such as SKF, FAG or NSK. The key is to respect the complete part number, including cage and clearance suffixes, to ensure compatibility. If you have the part number from another brand, at MR Accesorios Industriales we tell you the exact equivalent and quote it for you.
To move forward with your inquiry, send us the NNU part number you need by WhatsApp, along with the dimensions or the drawing if you have it. At MR Accesorios Industriales we quote promptly and advise you on the best option for your application.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 300 mm
Frequently Asked Questions
- What does the NNU designation mean?
- NNU identifies a double row cylindrical roller bearing with two inner rings and one flangeless outer ring. The following numbers indicate the dimension series, and the suffixes may indicate features such as cage or internal clearance.
- How do I choose the right internal clearance?
- Internal clearance depends on the application: assemblies with interference fits or high temperatures usually require greater clearance. For precision spindles, a reduced clearance is sought. Consult us with your equipment data and we will guide you.
- Are they interchangeable with other brands?
- Yes, NTN NNU bearings follow dimensional standards that allow interchangeability with other brands, as long as the complete part number and suffixes are respected. If you send us the part number from another brand, we will tell you the equivalent.