SKF NU 309 ECML/P54S1 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 NU 309 ECML/P54S1
- NU 3Series
- Cylindrical roller bearings, NU 3 series. For the same bore, each series has a different outside diameter and width.
- 09Bore
- 45 mm bore: 09 × 5.
- ECML/P54S1Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NU 309 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NU 309 ECML/P54S1 bearing has a 45 mm bore, a 100 mm outside diameter and a 25 mm width (45 x 100 x 25 mm).
SKF NU 309 ECML/P54S1 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU 309 ECML/P54S1 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF cylindrical roller bearing of the NU ECML/P series is a high radial capacity component designed to withstand high loads and considerable speeds. Its design with a machined brass cage and thermal stabilization makes it suitable for demanding applications in industrial machinery. At MR Accesorios Industriales we carry this line as a brand, with technical advice so you choose the correct execution for your equipment.
The designation NU … ECML/P…S… is interpreted as follows: the NU prefix indicates a cylindrical roller bearing with two flanges on the outer ring and none on the inner ring, which allows relative axial displacement. The letters EC identify the high-strength machined brass cage, ML indicates the machined brass cage design, and P…S… refers to internal clearance and thermal stabilization. For example, NU 309 ECML/P54S1 combines these characteristics for a specific mounting.
This type of bearing is used in applications where high radial loads and moderate to high speeds predominate, such as gearboxes, industrial pumps, fans, machine tools and power transmission equipment. In Argentina, it is commonly found in the metallurgical, cement, food and processing plant industries. Its ability to withstand radial loads makes it a reliable option for shafts requiring rigidity and precision.
To select correctly, take into account the radial load, rotation speed and environmental conditions. Sealing and lubrication are critical: in contaminated environments, consider executions with seals or shields. Internal clearance should be chosen according to the working temperature and the mounting fit. Alignment between supports is essential to avoid parasitic axial loads. The machined brass cage provides resistance to high temperatures and vibrations.
Regarding equivalences, cylindrical roller bearings from other brands can be interchanged if main dimensions, tolerances and clearance match. The NU series with brass cage is an industry standard, but always verify the original manufacturer's specifications. MR Accesorios Industriales carries SKF as a brand, and we can guide you on interchangeability with other references.
If you need to replace a cylindrical roller bearing, send us the complete code via WhatsApp. At MR Accesorios Industriales we advise you so that the selection is correct and you can keep your equipment running without setbacks.
Dimensions
Boundary dimensions of the basic designation NU 309 per ISO 15: 45 x 100 x 25 mm (d x D x B).
- Bore
- 45mm
- Outside diameter (D)
- 100mm
- Width (B)
- 25mm
The same size in other brands
Pages from other brands with the basic designation NU 309: 45 x 100 x 25 mm (d x D x B) per ISO 15.
- FAGNU309-E-XL-TVP2
- NSKNU309EW
- NTNNU309NU309EA
- RKBNU 309
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 NU 309 ECML/P54S1 bearing?
- The SKF NU 309 ECML/P54S1 bearing has a 45 mm bore, a 100 mm outside diameter and a 25 mm width (45 x 100 x 25 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NU 309.
- What does the designation NU ECML/P…S… mean?
- NU indicates cylindrical rollers with two flanges on the outer ring; EC, machined brass cage; ML, cage design; P…S…, clearance and thermal stabilization. Each suffix defines mounting and operating characteristics.
- Does this bearing allow axial loads?
- The NU series is designed mainly for radial loads. For combined axial loads, a configuration with another bearing that supports them is recommended, such as a ball or tapered roller bearing.
- How do I choose the right internal clearance?
- Clearance depends on the operating temperature, the type of fit and the speed. Excessive clearance can cause vibrations; insufficient clearance, overheating. Consult us with your application data to select the most suitable one.