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NTN cylindrical roller bearing · NTN NU209EA
NTN NU209EA cylindrical roller bearing

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NTN NU209EA cylindrical roller bearing

Manufacturer Part NumberNU209EADimensions: 45 x 85 x 19 mm (d x D x B)Other bearings 45 x 85 x 19 mm →NTN NU 2 series: dimension table →
Brand
NTN
Category
Bearings
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Since 1945 · Martínez, Buenos Aires, Argentina

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How to read NTN NU209EA

NU 2Series
Cylindrical roller bearings, NU 2 series. For the same bore, each series has a different outside diameter and width.
09Bore
45 mm bore: 09 × 5.
EASuffix
NTN suffix: it defines the variant (sealing, cage, internal clearance or other features).

NU 209 is the standard (ISO) basic designation: it defines the type, the series and the bore.

Description

The NTN NU209EA bearing has a 45 mm bore, a 85 mm outside diameter and a 19 mm width (45 x 85 x 19 mm).

NTN NU209EA is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU209EA via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

NTN NU EA series cylindrical roller bearings are components designed to withstand high radial loads and high speeds, with a construction that allows axial displacement between the inner and outer rings. They are used in equipment where precision and load capacity are critical, such as gearboxes, pumps, compressors and power transmission machinery. At MR Accesorios Industriales we quote them according to the part number you need.

The NU EA series designation reads as follows: the letters NU indicate that the bearing has two ribs on the outer ring and none on the inner ring, which allows relative axial displacement. The number that follows —for example in NU204EA, NU205EA or NU210EA— corresponds to the size and is related to the bore diameter. The EA suffix identifies an optimized roller and cage design, aimed at improving load capacity and performance. Knowing this nomenclature helps you request the exact part number.

These bearings are used in industries in Argentina such as metallurgy, food processing, cement and petrochemicals. They are found in speed reducers, centrifugal pumps, screw compressors, industrial fans and machine tools. Their ability to withstand high radial loads and rotate at high speeds makes them suitable for continuously operating equipment, where reliability and service life are key factors in avoiding production downtime.

To select the correct bearing, take into account the radial load, the rotational speed and the environmental conditions. The NU EA series allows axial displacement, so it is used in supports that require freedom of thermal movement. It is important to verify the alignment between shaft and housing, and to choose the cage type and lubrication according to the application. Mounting must be carried out with suitable tools to avoid damaging the rollers and raceways.

As for equivalents, cylindrical roller bearings from other brands with similar designations can be interchanged, but dimensions and tolerances must always be confirmed. The NTN NU EA series may have equivalents in other manufacturers' catalogs, although the suffixes may vary. If you have another brand's part number or an unidentified part, send us the data and we will tell you the compatible alternative.

To request a quote for NTN NU EA series bearings, write to us on WhatsApp with the complete part number or the dimensions you need. At MR Accesorios Industriales we quote the exact part number or size you ask for. We can also advise you on lubrication and mounting so that the bearing works under the best conditions. Send us your inquiry and we will reply shortly.

Dimensions

Boundary dimensions of the basic designation NU 209 per ISO 15: 45 x 85 x 19 mm (d x D x B).

Bore
45mm
Outside diameter (D)
85mm
Width (B)
19mm

Same size in SKF and other brands

Pages from other brands with the basic designation NU 209: 45 x 85 x 19 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 NTN NU209EA bearing?
The NTN NU209EA bearing has a 45 mm bore, a 85 mm outside diameter and a 19 mm width (45 x 85 x 19 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NU 209.
What does the EA suffix mean in NU bearings?
The EA suffix indicates an optimized roller and cage design, which improves radial load capacity and performance. It is a common variant in the NTN NU series for demanding applications.
How do I choose the right NU EA bearing for my equipment?
You need to know the radial load, the rotational speed and the working conditions. Also check the alignment and the type of lubrication. With that data, we quote the exact part number you need.
Can I replace a bearing from another brand with an NTN NU EA one?
Yes, as long as dimensions and tolerances match. Cylindrical roller bearings with equivalent designations are usually interchangeable. Send us the part number of the original part and we will tell you the compatible alternative.
Request a quote for NU209EA via WhatsApp
Request a quote on WhatsApp