SKF NU 330 ECM/C3 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
How to read SKF NU 330 ECM/C3
- NU 3Series
- Cylindrical roller bearings, NU 3 series. For the same bore, each series has a different outside diameter and width.
- 30Bore
- 150 mm bore: 30 × 5.
- ECM/C3Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NU 330 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NU 330 ECM/C3 bearing has a 150 mm bore, a 320 mm outside diameter and a 65 mm width (150 x 320 x 65 mm).
SKF NU 330 ECM/C3 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NU 330 ECM/C3 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF cylindrical roller bearings from the NU series with ECM cage and C3 clearance are components designed to withstand high radial loads and considerable speeds. Their separable design and the ability to align the rollers precisely make them ideal for demanding industrial applications. At MR Accesorios Industriales we carry them as part of our SKF bearing offering, a brand we sell.
The NU … ECM/C… designation is interpreted as follows: NU indicates a cylindrical roller bearing with two ribs on the outer ring and none on the inner ring, which allows axial displacement. The number that follows is the size code according to the dimension series. ECM indicates a one-piece machined brass cage, roller-guided, and C3 a greater than normal internal radial clearance. For example, NU 207 ECM/C3 combines these characteristics in a specific size.
These bearings are used in industries such as steel, cement, mining, paper and heavy machinery manufacturing. In Argentina, they are common in gearboxes, high-flow pumps, industrial fans, machine tools and power transmission equipment. Their ability to withstand high radial loads and their rigidity make them suitable for assemblies where precision and durability are required.
To select the right bearing, take into account the radial load, rotation speed and environmental conditions. C3 clearance is recommended when there are thermal gradients or interference fits. During installation, ensure correct alignment and adequate lubrication; the ECM cage facilitates lubricant flow. Check the sealing: if the environment has dust or moisture, consider additional protection. Always follow the manufacturer's recommendations for installation and axial fixing.
As for equivalences, SKF bearings from the NU series with ECM cage and C3 clearance can be interchanged with products from other brands that follow the same standardized designation. However, tolerances and internal design may vary, so it is essential to verify the technical specifications before replacing. Consult us if you need assistance finding the right replacement.
To request a quote or more information, send the exact code of the bearing you need via WhatsApp to MR Accesorios Industriales. Our technical team will advise you and provide a prompt response. We work with SKF, a brand we carry, and we can help you select the right bearing for your application.
Dimensions
Boundary dimensions of the basic designation NU 330 per ISO 15: 150 x 320 x 65 mm (d x D x B).
- Bore
- 150mm
- Outside diameter (D)
- 320mm
- Width (B)
- 65mm
The same size in other brands
Pages from other brands with the basic designation NU 330: 150 x 320 x 65 mm (d x D x B) per ISO 15.
- FAGNU330-E-XL-M1
- NSKNU330EM
- NTNNU330NU330E
- RKBNU 330
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 330 ECM/C3 bearing?
- The SKF NU 330 ECM/C3 bearing has a 150 mm bore, a 320 mm outside diameter and a 65 mm width (150 x 320 x 65 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NU 330.
- What does the ECM suffix mean on an SKF bearing?
- ECM indicates that the bearing has a one-piece machined brass cage, roller-guided. This improves strength and allows higher speeds and loads compared to stamped steel cages.
- When should I choose a bearing with C3 clearance?
- C3 clearance is suitable when thermal differences between rings, interference fits or high speeds are expected. It provides additional margin for thermal expansion and prevents premature seizure.
- How do I know if an NU bearing can replace one from a different brand?
- Verify that the standardized designation matches, including series, diameter and suffixes. Although the main dimensions are usually interchangeable, tolerances and internal design may vary. Consult us with the original code to confirm the equivalence.