SKF NU 314 ECM/C4VA301 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Decoding SKF NU 314 ECM/C4VA301
- NU 3Series
- Cylindrical roller bearings, NU 3 series. Series differ in outside diameter and width even when the bore is the same.
- 14Bore
- Bore 70 mm (14 × 5).
- ECM/C4VA301Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NU 314 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF NU 314 ECM/C4VA301 measures 70 mm across the bore and 150 mm across the outside diameter; its width is 35 mm (70 x 150 x 35 mm).
SKF NU 314 ECM/C4VA301 belongs to cylindrical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for NU 314 ECM/C4VA301 and any equivalents.
SKF NU series cylindrical roller bearings handle high radial loads and speeds. Their separable design and allowance for axial movement suit rigid, precise setups such as industrial machinery, gearboxes and power transmission equipment. MR Industrial Accessories supplies this line and helps you pick the right variant.
Reading the code: NU means the outer ring has no flanges, so the inner ring can shift axially relative to the outer ring. The following number, such as 214, 216 or 314, sets the size and dimension series. ECM identifies a one-piece machined brass cage guided by the rollers, intended for high speeds and loads. Suffixes C… and VA… mark special versions: C3 or C4 for increased internal radial clearance, and VA301 or VA3091 for designs tailored to specific duties like electric motors or vibrating equipment. For instance, NU 214 ECM/C4VA301 pairs C4 clearance with the VA301 variant.
You will find these bearings in metallurgy, cement, mining, food processing and power generation. Typical equipment includes speed reducers, gearboxes, large electric motors, centrifugal pumps, industrial fans and machine tools. High radial capacity and rigidity make them a fit for shafts needing precision and fatigue resistance. Controlled axial displacement also compensates thermal expansion in long shafts.
Selection depends on radial load, rotational speed and the operating environment. Choose internal radial clearance based on working temperature and mounting fit: C3 or C4 when thermal expansion or interference fits are expected. Grease or oil lubrication works, depending on speed and temperature; for critical duties, circulating oil is preferred. Mounting must align the rings precisely and avoid unwanted axial loads. The ECM brass cage provides robust, wear-resistant guidance.
For interchangeability, SKF NU series bearings match other brands that share the same standardized dimensions and similar designations. Internal suffixes such as ECM, C3, C4 or VA can differ between manufacturers, so verify the technical data before substituting a bearing. International standards secure dimensional interchangeability, but clearance, cage and treatment details may not be identical. Let our technical team confirm the exact equivalence.
To request a quote, send the complete part number on WhatsApp. MR Industrial Accessories helps you choose the right variant for your application and suggests alternatives.
Dimensions
70 x 150 x 35 mm (d x D x B): boundary dimensions for basic designation NU 314, according to ISO 15.
- Bore
- 70mm
- Outside diameter (D)
- 150mm
- Width (B)
- 35mm
Same size, other brands
Other brands' pages with basic designation NU 314: 70 x 150 x 35 mm (d x D x B) per ISO 15.
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF NU 314 ECM/C4VA301 bearing: what are its dimensions?
- SKF NU 314 ECM/C4VA301 measures 70 mm across the bore and 150 mm across the outside diameter; its width is 35 mm (70 x 150 x 35 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation NU 314.
- What does the ECM suffix mean in an SKF NU bearing?
- ECM indicates a one-piece machined brass cage, roller-guided. It suits high speeds and loads and offers greater strength and durability than stamped steel cages.
- What is the difference between the VA301 and VA3091 variants?
- VA301 and VA3091 are special designs for specific applications, such as electric motors or vibrating equipment. Each may include surface treatments, particular internal clearances or cage modifications. Contact MR to learn the exact characteristics of each.
- Can I replace an NU bearing with one from a different brand?
- Yes, if the main dimensions and design type are equivalent. However, suffixes for internal clearance, cage type or special treatments may vary between manufacturers. Verify the technical specifications and consult a specialist before replacing.