SKF NJ 312 ECM/C4VA301 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
How to read SKF NJ 312 ECM/C4VA301
- NJ 3Series
- Cylindrical roller bearings, NJ 3 series. For the same bore, each series has a different outside diameter and width.
- 12Bore
- 60 mm bore: 12 × 5.
- ECM/C4VA301Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NJ 312 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
The SKF NJ 312 ECM/C4VA301 bearing has a 60 mm bore, a 130 mm outside diameter and a 31 mm width (60 x 130 x 31 mm).
SKF NJ 312 ECM/C4VA301 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NJ 312 ECM/C4VA301 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF NJ series cylindrical roller bearings are components designed to withstand high radial loads and considerable speeds. Their design with cylindrical rollers and steel cage allows precise operation in demanding industrial applications. They are used in heavy machinery, gearboxes, pumps and transmission equipment. At MR Accesorios Industriales we sell them as part of our SKF bearing line.
The designation NJ … ECM/C…VA… is interpreted as follows: NJ indicates that the bearing has two ribs on the outer ring and one on the inner ring, which allows axial guidance in one direction. The number that follows, for example 312, 314 or 320, corresponds to the size of the diameter and width series. The suffix ECM indicates a one-piece machined brass cage, roller-guided, suitable for high speeds and temperatures. C4 indicates an internal radial clearance greater than normal, and VA301 is a particular execution specification. Examples such as NJ 312 ECM/C4VA301 or NJ 326 ECM/C4VA301 show the combination of these elements.
These bearings are used in industries such as steel, cement, mining, paper and machinery manufacturing. They are common in speed reducers, gearboxes, centrifugal pumps, compressors, industrial fans and belt or chain transmission equipment. In Argentina, they are found in processing plants, mills, conveyors and agricultural machinery. Their ability to withstand high radial loads and moderate to high speeds makes them versatile for rotating equipment subjected to continuous stress.
To select the right bearing, take into account the radial load, rotation speed and environmental conditions. C4 clearance is useful when thermal expansion or interference fits on the shaft or housing are expected. The ECM cage requires adequate lubrication; check the type of grease or oil and the relubrication frequency. During assembly, ensure shaft and housing alignment, and avoid impacts that could damage the rollers or raceways. Mounting with a hydraulic press or induction heater is preferable to direct impacts.
SKF NJ series bearings can be interchanged with equivalent products from other brands that follow the same dimensional and execution designation. However, tolerances, internal clearance and cage type may vary between manufacturers. Therefore, when replacing a bearing, always verify the main dimensions, clearance and operating conditions. Interchangeability is possible, but it requires confirming that the specifications match the application.
If you need an SKF NJ series cylindrical roller bearing, send us the complete code via WhatsApp to MR Accesorios Industriales. We advise you so you can choose the correct execution for your equipment. At MR Accesorios Industriales we have the experience to help you find the right solution.
Dimensions
Boundary dimensions of the basic designation NJ 312 per ISO 15: 60 x 130 x 31 mm (d x D x B).
- Bore
- 60mm
- Outside diameter (D)
- 130mm
- Width (B)
- 31mm
The same size in other brands
Pages from other brands with the basic designation NJ 312: 60 x 130 x 31 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 312 ECM/C4VA301 bearing?
- The SKF NJ 312 ECM/C4VA301 bearing has a 60 mm bore, a 130 mm outside diameter and a 31 mm width (60 x 130 x 31 mm). These are the standardised boundary dimensions (ISO 15) of the basic designation NJ 312.
- What does the C4 suffix mean in an SKF NJ bearing?
- The C4 suffix indicates an internal radial clearance greater than normal. It is used when there is thermal expansion or interference fits that could reduce clearance during operation. It is important to verify that the clearance is suitable for your application.
- How is an NJ cylindrical roller bearing mounted?
- It is recommended to mount it with a hydraulic press or induction heater, applying force on the ring being fitted. Avoid direct impacts on the rollers or cage. Verify shaft and housing alignment, and follow the manufacturer's instructions for fitting and lubrication.
- Can I replace an SKF NJ bearing with another brand?
- Yes, as long as the main dimensions, internal clearance and cage type are equivalent. Designations may vary between manufacturers, so it is essential to compare technical specifications. Consult us with the original code and we will help you find the right equivalent.