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Single row cylindrical roller bearing, NUP design · SKF NUP 320 ECJ
SKF NUP 320 ECJ cylindrical roller bearing

SKFBrand we market

SKF NUP 320 ECJ cylindrical roller bearing

Manufacturer Part NumberNUP 320 ECJDimensions: 100 x 215 x 47 mm (d x D x B)Other bearings 100 x 215 x 47 mm →Also searched as: NUP320ECJ · NUP320 ECJSKF NUP 3 series: dimension table →
Brand
SKF
Category
Bearings
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Other brands in this category

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How to read SKF NUP 320 ECJ

NUP 3Series
Cylindrical roller bearings, NUP 3 series. For the same bore, each series has a different outside diameter and width.
20Bore
100 mm bore: 20 × 5.
ECJSuffix
SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).

NUP 320 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The SKF NUP 320 ECJ bearing has a 100 mm bore, a 215 mm outside diameter and a 47 mm width (100 x 215 x 47 mm).

SKF NUP 320 ECJ is a reference of cylindrical roller bearing, within Bearings. Request a quote for NUP 320 ECJ via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF NUP series cylindrical roller bearings with the ECJ suffix are high radial capacity and high speed components, with a one-piece inner and outer ring and a stamped steel cage. Their design with two ribs on the inner ring and one on the outer ring allows axial guidance in both directions, in addition to supporting high radial loads. They are used in applications requiring rigidity and precision, such as gearboxes, pumps and machine tools.

The NUP … ECJ designation is read as follows: NUP indicates the bearing type with two ribs on the inner ring and one on the outer ring, providing bidirectional axial guidance. The number that follows (for example, NUP 207, NUP 209, NUP 210, NUP 213, NUP 224, NUP 226, NUP 228, NUP 230) corresponds to the size according to the dimension series. The ECJ suffix indicates an optimized design with higher load capacity and a stamped steel cage, window-centered and roller-guided. This combination is ideal for assemblies requiring high precision and rigidity.

These bearings are used in Argentine industries such as metalworking, food processing, cement and mining. They are present in gearboxes, centrifugal pumps, compressors, machine tools, conveyors and processing equipment. Their ability to withstand high radial loads and high speeds makes them suitable for power transmissions and spindles. They are also used in applications requiring precise axial guidance, such as rolling mill rolls and large electric motor shafts.

To correctly select a NUP … ECJ, take into account the radial and axial load it will have to withstand, the rotation speed and the environmental conditions. Check the sealing: if the environment has dust or moisture, consider variants with seals or shields. Internal clearance and lubrication are critical: choose the right lubricant according to temperature and speed. During mounting, ensure precise alignment between shaft and housing, and avoid impacts that could damage the rollers or raceways. Proper fit mounting extends service life.

Regarding equivalences and interchangeability, SKF NUP … ECJ bearings can be replaced by products from other brands that follow the same dimensional and suffix designation. It is essential to verify tolerances and internal clearance, as they may vary between manufacturers. If you need to replace an existing bearing, compare the main dimensions (bore, outer diameter and width) and load conditions. At MR Accesorios Industriales we can advise you to find the best option.

If you are looking for SKF NUP … ECJ bearings, at MR Accesorios Industriales we sell the SKF brand. To request a quote, simply send us the complete part number via WhatsApp and we will reply shortly. We can also help you select the right bearing for your application. Do not hesitate to contact us: our technical team is here to advise you.

Dimensions

Boundary dimensions of the basic designation NUP 320 per ISO 15: 100 x 215 x 47 mm (d x D x B).

Bore
100mm
Outside diameter (D)
215mm
Width (B)
47mm

The same size in other brands

Pages from other brands with the basic designation NUP 320: 100 x 215 x 47 mm (d x D x B) per ISO 15.

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 NUP 320 ECJ bearing?
The SKF NUP 320 ECJ bearing has a 100 mm bore, a 215 mm outside diameter and a 47 mm width (100 x 215 x 47 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NUP 320.
What does the ECJ suffix mean in an SKF NUP bearing?
The ECJ suffix indicates an optimized design with higher radial load capacity and a stamped steel cage, roller-guided. This improves performance and heat dissipation, especially in high-speed and high-load applications.
Where are NUP … ECJ bearings used?
They are used in gearboxes, pumps, compressors, machine tools and industrial equipment that must withstand high radial loads and axial guidance in both directions. They are common in the metalworking, food and mining industries.
How do I choose the right NUP … ECJ bearing?
Consider the radial and axial load, speed, environment and type of lubrication. Verify the dimensions and internal clearance. If you have doubts, contact us with the part number and operating conditions; we will help you select it.
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