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NSK cylindrical roller bearing · NSK NU2204W
NSK NU2204W cylindrical roller bearing

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NSK NU2204W cylindrical roller bearing

Manufacturer Part NumberNU2204WDimensions: 20 x 47 x 18 mm (d x D x B)Other bearings 20 x 47 x 18 mm →NSK NU 22 series: dimension table →
Brand
NSK
Category
Bearings
Series
NU
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Since 1945 · Martínez, Buenos Aires, Argentina

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How to read NSK NU2204W

NU 22Series
Cylindrical roller bearings, NU 22 series. For the same bore, each series has a different outside diameter and width.
04Bore
20 mm bore: 04 × 5.
WSuffix
NSK suffix: it defines the variant (sealing, cage, internal clearance or other features).

NU 2204 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The NSK NU2204W bearing has a 20 mm bore, a 47 mm outside diameter and a 18 mm width (20 x 47 x 18 mm).

NSK NU2204W is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU2204W via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NU series cylindrical roller bearing is a component with high radial load capacity, designed to withstand high forces and considerable speeds. Its construction with cylindrical rollers and parallel raceways allows precise operation in applications where rigidity and durability are required. MR Accesorios Industriales sells this NSK series for industrial equipment in Argentina.

The designation of the NU series is interpreted as follows: the letters NU indicate that the inner ring has no flanges, which allows relative axial displacement between the shaft and the housing. The number that follows indicates the dimension series, and the suffix W indicates that the bearing incorporates a retaining ring groove on the outer ring, where applicable. For example, NU313W, NU314W and NU315W share diameter series 3 and vary in bore diameter, while NU2204W belongs to series 22, of smaller section. Knowing these codes makes correct selection easier.

These bearings are used in a wide variety of industrial applications in Argentina, such as gearboxes, centrifugal pumps, compressors, machine tools and power transmission equipment. Their ability to support high radial loads and their suitability for high speeds make them suitable for demanding environments. Industries such as food, petrochemical, steel and mining rely on this series to ensure continuous and reliable operation.

For correct selection and installation, take into account the type of sealing required according to the working environment: open bearings are suitable for oil or grease lubrication in closed systems, while versions with seals or shields protect against contaminants. Precise alignment between shaft and housing is essential to avoid undue axial loads. Lubrication must be suitable for the operating speed and temperature, and internal clearance must be selected according to the service conditions.

Regarding equivalences and interchangeability, NSK NU series cylindrical roller bearings can be interchanged with those of other brands that follow the same standardized designation, such as SKF, FAG or NTN, as long as dimensions and tolerances are verified. It is important to confirm the W suffix and other variants to ensure compatibility. If you have doubts, our technical team can advise you.

To request a quote for NSK NU series cylindrical roller bearings, send the code or dimensions via WhatsApp to MR Accesorios Industriales. We will reply promptly with the information you need for your application.

Dimensions

Boundary dimensions of the basic designation NU 2204 per ISO 15: 20 x 47 x 18 mm (d x D x B).

Bore
20mm
Outside diameter (D)
47mm
Width (B)
18mm

Same size in SKF and other brands

Pages from other brands with the basic designation NU 2204: 20 x 47 x 18 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 NSK NU2204W bearing?
The NSK NU2204W bearing has a 20 mm bore, a 47 mm outside diameter and a 18 mm width (20 x 47 x 18 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NU 2204.
What does the W suffix mean on NSK NU series bearings?
The W suffix indicates that the bearing has a retaining ring groove on the outer ring. This allows the bearing to be axially fixed in the housing by means of a circlip, simplifying the housing design.
How do I choose between an open NU bearing and a sealed one?
The choice depends on the environment: if dust, moisture or particles are present, a sealed or shielded bearing is preferable. In clean environments with controlled lubrication, an open bearing is sufficient and facilitates maintenance.
Can I replace an NU bearing from another brand with an NSK one?
Yes, as long as the main dimensions, execution type and suffix match. NU series cylindrical roller bearings follow international standards, which allows interchangeability between brands. Always verify the technical specifications.
Request a quote for NU2204W via WhatsApp
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