SKF NU 319 EM/C3 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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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 319 EM/C3
- NU 3Series
- Cylindrical roller bearings, NU 3 series. For the same bore, each series has a different outside diameter and width.
- 19Bore
- 95 mm bore: 19 × 5.
- EM/C3Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NU 319 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NU 319 EM/C3 bearing has a 95 mm bore, a 200 mm outside diameter and a 45 mm width (95 x 200 x 45 mm).
SKF NU 319 EM/C3 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU 319 EM/C3 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF NU series cylindrical roller bearing is a component designed to withstand high radial loads and operate at high speeds. Its dismountable design facilitates assembly and maintenance in industrial equipment. It is used in applications requiring high load capacity and rigidity, such as gearboxes, pumps and process machinery. At MR Accesorios Industriales we supply this brand and advise you to choose the right bearing for your application.
The NU series designation is interpreted as follows: the letters NU indicate that the outer ring has two ribs and the inner ring none, which allows relative axial displacement between ring and shaft. The numbers that follow indicate the size and dimension series. The suffixes EM and C3 provide key information: EM indicates a design with machined brass cage and higher-capacity rollers, while C3 indicates an internal radial clearance greater than standard. For example, the code NU 319 EM/C3 combines these characteristics for a high-demand bearing.
This type of bearing is used in industries such as cement, steel, paper and food. In Argentina, it is common to find it in speed reducers, mills, conveyor belts, centrifugal pumps and industrial fans. Its ability to withstand heavy radial loads and its fatigue resistance make it suitable for equipment operating continuously. It is also used in applications where thermal expansion of the shaft requires freedom of axial movement.
To correctly select an NU bearing, take into account the radial load, rotation speed and environmental conditions. C3 clearance is recommended when there are significant thermal gradients between the inner and outer rings, as it compensates for differential expansion. Lubrication must be chosen according to temperature and speed: grease for slow applications or oil for high revolutions. During assembly, ensure precise alignment between the supports and avoid impacts that could damage the rollers or raceways. Sealing will depend on the contamination of the environment.
Regarding equivalences and interchangeability, cylindrical roller bearings from different brands can be interchanged if the main dimensions and radial clearance match. However, not all suffixes have the same meaning between manufacturers. Therefore, always verify the complete code and tolerances before replacing a bearing. At MR Accesorios Industriales we can help you find the right equivalent reference for your equipment.
If you need an SKF NU series cylindrical roller bearing, send us the exact code via WhatsApp and we will quote you promptly. At MR Accesorios Industriales we provide personalized technical advice.
Dimensions
Boundary dimensions of the basic designation NU 319 per ISO 15: 95 x 200 x 45 mm (d x D x B).
- Bore
- 95mm
- Outside diameter (D)
- 200mm
- Width (B)
- 45mm
The same size in other brands
Pages from other brands with the basic designation NU 319: 95 x 200 x 45 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 NU 319 EM/C3 bearing?
- The SKF NU 319 EM/C3 bearing has a 95 mm bore, a 200 mm outside diameter and a 45 mm width (95 x 200 x 45 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NU 319.
- What does the C3 suffix mean in an NU bearing?
- The C3 suffix indicates an internal radial clearance greater than standard. It is used when operating conditions generate thermal expansion that could reduce clearance and cause incorrect operation. It is common in applications with high temperatures or interference fits.
- Does this bearing support axial loads?
- The NU design has the inner ring without ribs, so it cannot support axial loads by itself. For combined loads, other designs are needed, such as the NJ or NUP series, which incorporate ribs to guide axially. Consult us if your application requires supporting axial forces.
- How do I choose between a brass cage and a steel cage?
- The machined brass cage, identified with the EM suffix, offers greater strength and load capacity, and is suitable for high speeds and severe conditions. The stamped steel cage is more economical and sufficient for standard applications. The choice depends on the demands of the equipment.