SKF NUP 224 ECJ cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Decoding SKF NUP 224 ECJ
- NUP 2Series
- Cylindrical roller bearings, NUP 2 series. Series differ in outside diameter and width even when the bore is the same.
- 24Bore
- Bore 120 mm (24 × 5).
- ECJSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NUP 224 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF NUP 224 ECJ measures 120 mm across the bore and 215 mm across the outside diameter; its width is 40 mm (120 x 215 x 40 mm).
SKF NUP 224 ECJ 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 NUP 224 ECJ and any equivalents.
For maintenance and purchasing teams dealing with high radial loads and the need for axial location in both directions, the SKF NUP series with ECJ suffix is a standard choice. These cylindrical roller bearings combine a one-piece inner and outer ring with a stamped steel cage, and their rib arrangement on the inner and outer rings provides bidirectional axial guidance. They are common in gearboxes, pumps and machine tools where rigidity and precision matter.
Reading the designation helps when you are matching a replacement. NUP is the bearing type: two ribs on the inner ring and one on the outer ring, which gives axial guidance in both directions. The number that follows — for example NUP 207, NUP 209, NUP 210, NUP 213, NUP 224, NUP 226, NUP 228 or NUP 230 — sets the size within the dimension series. The ECJ suffix identifies an optimized design with higher load capacity and a stamped steel cage that is window-centered and roller-guided. Together, these features suit assemblies that call for high precision and rigidity.
Typical service includes gearboxes, centrifugal pumps, compressors, machine tools, conveyors and processing equipment. The ability to carry high radial loads at high speeds makes these bearings relevant to power transmission and spindle arrangements. They also appear where precise axial guidance is required, such as rolling mill rolls and large electric motor shafts. Industries that rely on them include metalworking, food processing, cement and mining.
When selecting a NUP ... ECJ, start with the radial and axial loads the bearing will see, then factor in rotation speed and the operating environment. If dust or moisture is present, consider sealed or shielded variants. Internal clearance and lubrication are critical: match the lubricant to the expected temperature and speed. During mounting, keep shaft and housing alignment precise and avoid impacts that could damage rollers or raceways. Correct fitting practices support service life.
For interchangeability, SKF NUP ... ECJ bearings can be replaced by products from other manufacturers that follow the same dimensional and suffix designation. Always verify tolerances and internal clearance, since these can differ between makers. When replacing an existing bearing, compare bore, outer diameter and width, along with the load conditions. MR Industrial Accessories can help you evaluate the options and suggest equivalents.
If you need SKF NUP ... ECJ bearings, MR Industrial Accessories supplies the SKF brand. Send the complete part number by WhatsApp or email to request a quote, and the team will respond promptly. They can also assist with selection for your application and recommend suitable alternatives.
Dimensions
120 x 215 x 40 mm (d x D x B): boundary dimensions for basic designation NUP 224, according to ISO 15.
- Bore
- 120mm
- Outside diameter (D)
- 215mm
- Width (B)
- 40mm
Same size, other brands
Other brands' pages with basic designation NUP 224: 120 x 215 x 40 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 NUP 224 ECJ bearing: what are its dimensions?
- SKF NUP 224 ECJ measures 120 mm across the bore and 215 mm across the outside diameter; its width is 40 mm (120 x 215 x 40 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation NUP 224.
- What does the ECJ suffix mean on an SKF NUP bearing?
- ECJ indicates an optimized design with higher radial load capacity and a stamped steel cage that is window-centered and roller-guided. This configuration supports performance in high-speed and high-load applications.
- Where are NUP ... ECJ bearings typically used?
- They are found in gearboxes, pumps, compressors, machine tools and industrial equipment that must handle high radial loads with axial guidance in both directions. Common industries include metalworking, food processing, cement and mining.
- How do I choose the right NUP ... ECJ bearing?
- Review the radial and axial loads, speed, environment and lubrication type. Confirm dimensions and internal clearance. If you need assistance, contact us with the part number and operating conditions and we will help you select it.