FAG NJ238-E-M1 cylindrical roller bearing
- Brand
- FAG
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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How to read FAG NJ238-E-M1
- NJ 2Series
- Cylindrical roller bearings, NJ 2 series. For the same bore, each series has a different outside diameter and width.
- 38Bore
- 190 mm bore: 38 × 5.
- E-M1Suffix
- FAG suffix: it defines the variant (sealing, cage, internal clearance or other features).
NJ 238 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The FAG NJ238-E-M1 bearing has a 190 mm bore, a 340 mm outside diameter and a 55 mm width (190 x 340 x 55 mm).
FAG NJ238-E-M1 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NJ238-E-M1 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The FAG NJ series cylindrical roller bearing is a high radial capacity component designed to withstand heavy loads and considerable speeds. Its design with a rib on the inner ring and a brass cage provides rigidity and precision, making it suitable for demanding applications in industrial machinery. MR Accesorios Industriales carries this line as part of its bearing offering for the Argentine market, with technical advice to select the right variant for each piece of equipment.
The NJ series designation is interpreted as follows: the letters NJ indicate a cylindrical roller bearing with one fixed rib on the inner ring and two ribs on the outer ring, allowing axial displacement in one direction. The number that follows — for example, in NJ238-E-M1 — indicates the size and dimension series. The suffix -E corresponds to a higher load capacity design, while -M1 identifies the solid brass cage, suitable for high demands. Examples such as NJ240-E-M1 or NJ2332-E-M1 show different combinations of size and series.
These bearings are used in a wide variety of industrial equipment in Argentina: gearboxes, centrifugal pumps, compressors, machine tools, conveyors and mining equipment, among others. Their ability to withstand high radial loads and their rigidity make them suitable for gear transmissions and applications requiring high rotational precision. In the metallurgical, cement and food industries, they are often found in main spindles and support rollers.
To correctly select an NJ bearing, it is essential to consider radial and axial load, operating speed and environmental conditions. Mounting must ensure precise alignment between the rings; in applications with thermal expansion, the NJ design allows axial movement in one direction. Lubrication — grease or oil — must be chosen according to temperature and speed. Sealing will depend on environmental contamination: in dirty environments, additional protection is recommended. The solid brass cage offers strength and heat dissipation.
Regarding equivalences and interchangeability, cylindrical roller bearings from different brands may differ in suffixes and internal designs. When replacing a bearing, it is essential to verify the main dimensions and load conditions, since not all suffixes imply the same performance. For a safe replacement, it is advisable to consult a specialist who can validate dimensional and functional compatibility. MR Accesorios Industriales can advise you with the technical information for each case.
If you need a FAG NJ series cylindrical roller bearing, message us on WhatsApp with the full part number or the model you are looking for. We will send you a quote shortly and help you identify the correct variant for your equipment. MR Accesorios Industriales is at your disposal for advice.
Dimensions
Boundary dimensions of the basic designation NJ 238 per ISO 15: 190 x 340 x 55 mm (d x D x B).
- Bore
- 190mm
- Outside diameter (D)
- 340mm
- Width (B)
- 55mm
Same size in SKF
Pages from other brands with the basic designation NJ 238: 190 x 340 x 55 mm (d x D x B) per ISO 15.
- Looking for the SKF NJ 238? We also quote:NJ 238 ECMANJ 238 ECML
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 FAG NJ238-E-M1 bearing?
- The FAG NJ238-E-M1 bearing has a 190 mm bore, a 340 mm outside diameter and a 55 mm width (190 x 340 x 55 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NJ 238.
- What does the -E-M1 suffix mean on an NJ bearing?
- The -E suffix indicates a higher load capacity design, while -M1 corresponds to a solid brass cage. This combination is common in applications requiring high strength and heat dissipation.
- How do I choose the right NJ bearing for my application?
- You should consider radial and axial load, speed, temperature and environment. Also the type of lubrication and sealing. With that data, we can advise you on selecting the correct variant.
- Are NJ bearings from different brands interchangeable?
- Not always. Although the main dimensions may match, suffixes and internal designs can vary. It is advisable to verify dimensional and functional compatibility before replacing.