
SKF RNU 205 ECP cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Description
SKF RNU 205 ECP is a reference of cylindrical roller bearing, within Bearings. Request a quote for RNU 205 ECP via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF RNU ECP series cylindrical roller bearings are components designed to withstand high radial loads and considerable speeds. Their design without an inner ring allows them to be mounted directly on hardened and ground shafts, which simplifies the assembly and reduces weight. They are used in applications requiring high load capacity and rigidity, such as machine tools, pumps, compressors and transmission equipment. MR Accesorios Industriales sells this line as part of its SKF bearing offering, with technical advice to select the right execution.
The RNU ECP series designation is interpreted as follows: the letters RNU indicate a cylindrical roller bearing without an inner ring, with one row of rollers and a stamped steel cage. The suffix ECP indicates a glass fiber reinforced polyamide cage, suitable for moderate temperatures and high speed. Examples in the series include RNU 202 ECP, RNU 203 ECP, RNU 204 ECP, RNU 205 ECP, RNU 208 ECP, RNU 307 ECP, RNU 308 ECP and RNU 2304 ECP. The numbers following the letters indicate the size and the dimension series, which varies according to the shaft diameter and the required load capacity.
These bearings are used in industries such as metalworking, food, petrochemical and power generation. In Argentina, they are common in centrifugal pumps, screw compressors, gearboxes, machine tools and continuous process equipment. Their ability to withstand radial loads makes them suitable for gear and belt drives, where forces are predominantly radial. They are also used in applications where the shaft acts as the raceway, which allows reducing the size of the assembly and simplifying mounting.
To correctly select an RNU ECP bearing, it is essential to verify the hardness and roughness of the shaft, which must meet the raceway requirements. Mounting requires precise alignment and a proper fit between the shaft and the rollers. Lubrication can be with grease or oil, depending on the speed and operating temperature. Sealing is chosen according to the environment: for contaminated environments, lip seals or shields are recommended. It is important to control internal clearance and thermal expansion to avoid premature failures.
Regarding equivalences and interchangeability, SKF RNU ECP series bearings can be replaced by products from other manufacturers that follow the same standardized designation. However, dimensions and tolerances may vary slightly between brands, so it is recommended to verify dimensional and load compatibility before replacing. MR Accesorios Industriales can advise you on the corresponding options and the operating conditions for each application.
To receive a quote for SKF RNU ECP bearings, send the full product code by WhatsApp to MR Accesorios Industriales. Our technical team will help you confirm the designation and choose the variant that best suits your equipment. We can also advise you on mounting, lubrication and maintenance to extend the bearing's service life.
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 RNU ECP designation mean?
- RNU indicates a cylindrical roller bearing without an inner ring, with one row of rollers. ECP corresponds to a glass fiber reinforced polyamide cage, suitable for high speeds and moderate temperatures. The numbers that follow indicate the size and the dimension series.
- Where are RNU ECP bearings used?
- They are used in applications with high radial loads, such as pumps, compressors, gearboxes, machine tools and transmission equipment. They are common in metalworking, food, petrochemical and power generation industries.
- How is an RNU ECP bearing mounted?
- Mounting requires a hardened and ground shaft that acts as the raceway. Precise alignment and a proper fit must be ensured. Lubrication can be grease or oil, and sealing is selected according to the environment. Consult the technical manual for the recommended internal clearance.

