SKF NJ 2312 ECML/C4 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
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How to read SKF NJ 2312 ECML/C4
- NJ 23Series
- Cylindrical roller bearings, NJ 23 series. For the same bore, each series has a different outside diameter and width.
- 12Bore
- 60 mm bore: 12 × 5.
- ECML/C4Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NJ 2312 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NJ 2312 ECML/C4 bearing has a 60 mm bore, a 130 mm outside diameter and a 46 mm width (60 x 130 x 46 mm).
SKF NJ 2312 ECML/C4 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NJ 2312 ECML/C4 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF NJ series cylindrical roller bearing is a component with high radial load capacity, designed to withstand heavy loads and considerable speeds. Its design with two ribs on the inner ring and one on the outer ring allows axial guidance in one direction, making it suitable for applications requiring precise axial location. It is used in industrial machinery, gearboxes, pumps and power transmission equipment.
The designation NJ … ECML/C… is interpreted as follows: NJ indicates that the inner ring has two ribs and the outer ring one, allowing axial guidance in one direction. The number that follows is the size code according to the dimension series. EC means machined brass window cage, ML indicates machined brass cage guided by the inner ring, and C… specifies the internal radial clearance, for example C3 or C4. Examples: NJ 219 ECML/C3, NJ 230 ECML/C3, NJ 316 ECML/C4.
These bearings are used in industries such as steel, cement, mining, paper and machinery manufacturing. In Argentina, they are common in speed reducers, gearboxes, centrifugal pumps, industrial fans and transmission equipment. Their ability to withstand high radial loads and their rigidity make them suitable for applications with high mechanical demands.
To select correctly, consider the radial and axial load, the rotational speed and the environmental conditions. The internal clearance C3 or C4 is suitable when thermal expansion or interference fits are expected. Lubrication must be chosen according to temperature and speed; for high speeds, oil is recommended. It is essential to ensure precise alignment between shaft and housing, and to verify sealing to prevent contamination.
Regarding equivalences, SKF NJ series bearings can be interchanged with those of other brands that follow the same dimensional and suffix designation, such as FAG, NSK or NTN, as long as the specified tolerances and clearance are respected. It is important to verify the complete code and operating conditions before replacing one bearing with another from a different manufacturer.
For a specific application, it is best to consult our specialists. At MR Accesorios Industriales we advise you to choose the right bearing. Send us the code via WhatsApp and we will quote you promptly.
Dimensions
Boundary dimensions of the basic designation NJ 2312 per ISO 15: 60 x 130 x 46 mm (d x D x B).
- Bore
- 60mm
- Outside diameter (D)
- 130mm
- Width (B)
- 46mm
The same size in other brands
Pages from other brands with the basic designation NJ 2312: 60 x 130 x 46 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 NJ 2312 ECML/C4 bearing?
- The SKF NJ 2312 ECML/C4 bearing has a 60 mm bore, a 130 mm outside diameter and a 46 mm width (60 x 130 x 46 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NJ 2312.
- What does the ECML suffix mean on an SKF NJ bearing?
- EC indicates a machined brass window cage, and ML that it is guided by the inner ring. This combination is common in cylindrical roller bearings for demanding applications.
- When should a C3 or C4 clearance be used?
- C3 or C4 clearance is recommended when there are interference fits, thermal expansion or high speeds, as it allows dimensional variations to be compensated without compromising operation.
- Can I replace an SKF NJ bearing with one from another brand?
- Yes, as long as the dimensional designation and suffixes match. Brands such as FAG, NSK or NTN offer equivalents, but verify tolerances and clearance before interchanging.