SKF NU 218 ECM/C3VA3091 cylindrical roller bearing

SKF NU 218 ECM/C3VA3091 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU 218 ECM/C3VA3091 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF NU series cylindrical roller bearings are components with high radial load capacity, designed to withstand high loads and considerable speeds. Their separable design and the possibility of axial displacement make them ideal for applications requiring rigidity and precision, such as industrial machinery, gearboxes and power transmission equipment. MR Accesorios Industriales supplies this line as a brand, with technical advice to select the right variant for each application.

The designation NU … ECM/C…VA… is interpreted as follows: NU indicates that the bearing has two rows of cylindrical rollers and that the outer ring has no flanges, which allows relative axial displacement between inner and outer rings. The number that follows (for example, 214, 216, 314) corresponds to the size and dimension series. ECM designates the one-piece machined brass cage, roller-guided, suitable for high speeds and loads. The suffixes C… and VA… indicate special variants: C3 or C4 refer to increased internal radial clearance, and VA301 or VA3091 identify specific designs for particular applications, such as electric motors or vibrating equipment. For example, NU 214 ECM/C4VA301 combines C4 clearance and the VA301 variant.

These bearings are used in a wide variety of industries in Argentina, such as metallurgy, cement, mining, food and power generation. They are common in speed reducers, gearboxes, large electric motors, centrifugal pumps, industrial fans and machine tools. Their ability to withstand high radial loads and their rigidity make them suitable for shafts where high precision and fatigue resistance are required. In addition, the possibility of controlled axial displacement allows compensating thermal expansion in long shafts.

To correctly select an NU bearing, it is essential to consider the radial load, the rotational speed and the environmental conditions. The internal radial clearance must be chosen according to the working temperature and the mounting fit: a C3 or C4 clearance is recommended when significant thermal expansion or interference fits are expected. Lubrication can be grease or oil, depending on speed and temperature; in critical applications, oil lubrication with circulation is recommended. Mounting must ensure precise alignment between the rings and avoid undue axial loads. The ECM brass cage offers robust and wear-resistant guidance.

Regarding equivalences and interchangeability, SKF NU series bearings are interchangeable with those of other brands that follow the same standardized dimensions and similar designations. However, internal suffixes such as ECM, C3, C4 or VA may vary between manufacturers, so it is essential to verify the technical specifications before replacing a bearing. Dimensional interchangeability is ensured by international standards, but clearance, cage and treatment characteristics may differ. Always consult our technical team to validate the exact equivalence.

To request a quote for the bearing you need, simply send us the complete part number on WhatsApp. At MR Accesorios Industriales we advise you so that you choose the right variant for your application, and we offer alternatives. We are your reliable partner in bearings and power transmission.