SKF N 311 ECM/P63 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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How to read SKF N 311 ECM/P63
- N 3Series
- Cylindrical roller bearings, N 3 series. For the same bore, each series has a different outside diameter and width.
- 11Bore
- 55 mm bore: 11 × 5.
- ECM/P63Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
N 311 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF N 311 ECM/P63 bearing has a 55 mm bore, a 120 mm outside diameter and a 29 mm width (55 x 120 x 29 mm).
SKF N 311 ECM/P63 is a reference of cylindrical roller bearing, within Bearings. Request a quote for N 311 ECM/P63 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF cylindrical roller bearings are components designed to support high radial loads and high rotation speeds. Their internal geometry allows the rollers to work on raceways parallel to the shaft, which translates into a great radial load capacity and remarkable rigidity. They are used in equipment where precision and durability are critical, such as gearboxes, pumps, electric motors and continuous process machinery.
The designation of these bearings combines letters and numbers that indicate the type of execution and construction characteristics. In the ECM/P series, the letters identify a machined brass cage, roller-guided, and the suffix P indicates a special precision class. The number accompanying the letters defines the size and load capacity within the series. For example, an N 311 ECM/P63 corresponds to a cylindrical roller bearing with brass cage and specific manufacturing tolerance. Knowing this reading allows you to correctly interpret each code when replacing a component.
These bearings are used in industries such as food, petrochemical, steel and cement, where equipment operates continuously and with variable loads. In Argentina it is common to find them in speed reducers, conveyor belts, mills, centrifugal pumps and large electric motors. They are also used in machine tools and material handling equipment, where the combination of radial load and speed demands a robust and high-precision bearing.
To correctly select a cylindrical roller bearing, consider the radial load, rotation speed and type of lubrication. The machined brass cage is suitable for high demands and elevated temperatures. It is essential to verify sealing: if the equipment works in a contaminated environment, it is advisable to choose executions with seals or shields. During assembly, ensure precise alignment between shaft and housing, and respect the recommended internal clearance. Lubrication must be the one indicated by the equipment manufacturer, and assembly with adequate tools prevents damage to the raceways.
In the market there are equivalent bearings from different brands that can be interchanged if main dimensions, tolerances and cage type match. It is not enough for the code to be similar: you must compare the execution, the precision suffix and the service conditions. MR Accesorios Industriales sells SKF as a brand, and can guide you on the appropriate equivalence according to the equipment and application. It is always advisable to validate interchangeability with the technical specifications of the original bearing.
If you have the code of the bearing you need, send it by WhatsApp to MR Accesorios Industriales and we will quote you. We can also advise you if any doubt arises about the designation, suffix or application. At MR Accesorios Industriales we help find the correct component so that your equipment keeps running without setbacks.
Dimensions
Boundary dimensions of the basic designation N 311 per ISO 15: 55 x 120 x 29 mm (d x D x B).
- Bore
- 55mm
- Outside diameter (D)
- 120mm
- Width (B)
- 29mm
The same size in other brands
Pages from other brands with the basic designation N 311: 55 x 120 x 29 mm (d x D x B) per ISO 15.
- FAGN311-E-XL-TVP2
- NSKN 311
They share the boundary dimensions set by ISO 15, not the technical data: seals or shields, internal clearance, cage and load rating can differ by brand and suffix. We quote each one by its full part number.
Frequently Asked Questions
- What are the dimensions of the SKF N 311 ECM/P63 bearing?
- The SKF N 311 ECM/P63 bearing has a 55 mm bore, a 120 mm outside diameter and a 29 mm width (55 x 120 x 29 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation N 311.
- What does the ECM/P suffix mean in an SKF bearing?
- The letters ECM indicate a machined brass cage, roller-guided. The suffix P refers to a special precision class. These details influence the behavior of the bearing under load and speed, so it is important to respect them when replacing the component.
- How do I know if a bearing from another brand can replace the SKF one?
- You must compare main dimensions, tolerances, cage type and execution. It is not enough for the code to be similar. At MR Accesorios Industriales we can help you validate the equivalence according to the equipment specifications and the specific application.
- What should I take into account when mounting a cylindrical roller bearing?
- Verify the alignment between shaft and housing, the internal clearance and the indicated lubrication. Use adequate tools to avoid damage to the raceways. If the environment has contaminants, evaluate an execution with seals or shields. Careful assembly extends the service life of the bearing.