
SKF NU 2228 ECML cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Decoding SKF NU 2228 ECML
- NU 22Series
- Cylindrical roller bearings, NU 22 series. Series differ in outside diameter and width even when the bore is the same.
- 28Bore
- Bore 140 mm (28 × 5).
- ECMLSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NU 2228 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF NU 2228 ECML measures 140 mm across the bore and 250 mm across the outside diameter; its width is 68 mm (140 x 250 x 68 mm).
SKF NU 2228 ECML 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 2228 ECML and any equivalents.
For applications that combine heavy radial forces with elevated rotational speeds, the SKF NU..ECML series of cylindrical roller bearings is a common choice. These bearings use a separable design that permits the rollers to align with the shaft, which supports reliable operation in tough industrial settings. MR Industrial Accessories LLC supplies this line as part of its SKF bearing range and can assist with sizing and selection.
The code NU..ECML breaks down into distinct elements. NU means a single row of cylindrical rollers with a flangeless inner ring, so the shaft and housing can shift axially relative to each other. The following digits, such as 206, 208 or 228, define the size and dimension series. EC denotes an optimized internal design that increases load capacity, while ML identifies a machined brass cage built for high speeds and elevated temperatures. Part numbers like NU 206 ECML and NU 240 ECML illustrate the range of sizes available.
These bearings appear in many industrial settings: gearboxes, electric motors, pumps, compressors, machine tools and mining equipment. Their capacity for heavy radial loads and high revolutions suits power transmission systems, industrial fans and rolling mill rolls. In food and pharmaceutical operations, they are found in conveyors and mixers where cleanliness and durability matter.
Selecting an NU..ECML bearing requires attention to radial load, rotation speed and environmental conditions. Shaft and housing alignment must be checked to prevent extra stresses. Correct lubrication, whether grease or oil, contributes to service life; in contaminated environments, add seals or other protections. Use suitable tools during mounting and avoid striking the rollers directly. The machined brass cage performs well at high temperatures and speeds.
For interchangeability, SKF NU..ECML bearings can be replaced by other manufacturers' products that use the same international designation. Tolerances and internal clearance may differ between brands, so verify these values. Standard interchange is based on bore, outer diameter and width, as well as load capacity. Always review technical specifications before substituting a bearing to maintain performance.
To request an SKF NU..ECML cylindrical roller bearing, contact MR Industrial Accessories LLC. Send the complete code via WhatsApp or email and the team will respond promptly with a quote. They can also suggest equivalent options and help you choose the right size for your application.
Dimensions
140 x 250 x 68 mm (d x D x B): boundary dimensions for basic designation NU 2228, according to ISO 15.
- Bore
- 140mm
- Outside diameter (D)
- 250mm
- Width (B)
- 68mm
Same size, other brands
Other brands' pages with basic designation NU 2228: 140 x 250 x 68 mm (d x D x B) per ISO 15.
- FAGNU2228-E-XL-M1
- NSKNU2228EM
- NTNNU2228NU2228E
- RKBNU 2228
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 2228 ECML bearing: what are its dimensions?
- SKF NU 2228 ECML measures 140 mm across the bore and 250 mm across the outside diameter; its width is 68 mm (140 x 250 x 68 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation NU 2228.
- What do the EC and ML suffixes indicate on an SKF bearing?
- EC stands for an optimized design with higher load capacity. ML refers to the machined brass cage, which is suitable for high speeds and elevated temperatures. Both are part of the standard SKF designation.
- Can this bearing accommodate axial movement?
- Yes. The NU series has an inner ring without flanges, allowing relative axial displacement between shaft and housing. This is helpful where thermal expansion or axial freedom is needed.
- How can I determine the correct NU bearing size?
- The size depends on the required bore, outer diameter and width. Provide the complete part number or your application dimensions and MR Industrial Accessories LLC will help you select the right bearing.

