SKF NJ 320 ECML/C405H 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 320 ECML/C405H
- NJ 3Series
- Cylindrical roller bearings, NJ 3 series. For the same bore, each series has a different outside diameter and width.
- 20Bore
- 100 mm bore: 20 × 5.
- ECML/C405HSuffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NJ 320 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NJ 320 ECML/C405H bearing has a 100 mm bore, a 215 mm outside diameter and a 47 mm width (100 x 215 x 47 mm).
SKF NJ 320 ECML/C405H is a reference of cylindrical roller bearing, within Bearings. Request a quote for NJ 320 ECML/C405H via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF cylindrical roller bearing of the NJ ECML/C…H series is a single-row bearing with a machined brass cage and a retaining ring groove. It supports high radial loads and high speeds, and allows axial displacement in one direction. It is used in industrial applications where precision and rigidity are critical, such as gearboxes, machine tools and power transmission equipment.
The designation of this series reads as follows: NJ indicates that the bearing has two ribs on the outer ring and one on the inner ring, which allows axial displacement in one direction. ECML describes the optimized internal design with a machined brass window cage. C…H is the suffix that identifies the retaining ring groove on the outer ring, with an associated numerical designation. For example, the code NJ 320 ECML/C405H combines these features in a bearing with a 100 mm bore, 215 mm outer diameter and 47 mm width.
This type of bearing is used in industries such as metallurgy, cement, mining and machinery manufacturing. In Argentina, it is commonly found in gearboxes, industrial pumps, compressors, induced draft fans and machine tool spindles. Its ability to withstand radial loads combined with high speeds makes it suitable for equipment subjected to continuous stress and demanding conditions.
To select correctly, take into account the radial load, the rotational speed and the type of lubrication. The machined brass cage allows higher speeds and temperatures than stamped steel cages. The suffix C…H indicates that the bearing has a retaining ring groove, which facilitates axial mounting in housings without the need for additional covers. It is essential to verify the alignment between shaft and housing, and to ensure adequate lubrication, whether with grease or oil, according to the operating conditions.
Regarding equivalences, cylindrical roller bearings from other brands with similar designations can be interchanged, but always verify the tolerances and internal clearance. The SKF NJ series is compatible with bearings of the same configuration from other European brands, although the suffixes may vary.
At MR Accesorios Industriales we sell SKF bearings as part of our power transmission line. If you need this bearing or want to confirm interchangeability with another brand, send us the full part number on WhatsApp and we will quote you shortly. We can also advise you on mounting and the appropriate lubrication for your application.
Dimensions
Boundary dimensions of the basic designation NJ 320 per ISO 15: 100 x 215 x 47 mm (d x D x B).
- Bore
- 100mm
- Outside diameter (D)
- 215mm
- Width (B)
- 47mm
The same size in other brands
Pages from other brands with the basic designation NJ 320: 100 x 215 x 47 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 320 ECML/C405H bearing?
- The SKF NJ 320 ECML/C405H bearing has a 100 mm bore, a 215 mm outside diameter and a 47 mm width (100 x 215 x 47 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NJ 320.
- What does the suffix C…H mean in the designation?
- The suffix C…H indicates that the bearing has a retaining ring groove on the outer ring. The number that accompanies the C identifies the groove variant. This allows the bearing to be fixed axially in the housing without the need for side covers.
- Does this bearing support axial loads?
- Yes, but only in one direction, due to the NJ rib configuration. For axial loads in both directions, other combinations are needed, such as two NJ bearings facing each other or an NUP bearing. Ask us about the most suitable arrangement for your equipment.
- How do I choose between a brass and a steel cage?
- The machined brass cage (ECML) is preferable for high speeds, elevated temperatures or severe loads. The stamped steel cage is suitable for standard applications. If your equipment works under demanding conditions, choose the version with a brass cage.