SKF NJ 2307 ECP/C3 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Decoding SKF NJ 2307 ECP/C3
- NJ 23Series
- Cylindrical roller bearings, NJ 23 series. Series differ in outside diameter and width even when the bore is the same.
- 07Bore
- Bore 35 mm (07 × 5).
- ECP/C3Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NJ 2307 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF NJ 2307 ECP/C3 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 31 mm (35 x 80 x 31 mm).
SKF NJ 2307 ECP/C3 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 NJ 2307 ECP/C3 and any equivalents.
SKF NJ series cylindrical roller bearings are built for machines that combine heavy radial loads with high running speeds. The cylindrical roller and polyamide cage arrangement supports accurate, dependable operation in tough industrial settings. MR Industrial Accessories supplies this series within its range of bearings and power transmission components.
In the NJ layout, the inner ring carries one rib while the outer ring has two, so the bearing can guide the shaft axially in a single direction. Suffixes tell you how a specific bearing is built: EC marks an optimized geometry with greater load capacity, P means the cage is polyamide, and C3 calls out radial internal clearance above the standard value. Take NJ 204 ECP/C3 as an example: it brings those features together in a 20 mm bore bearing.
You will find these bearings in gearboxes, pumps, compressors, electric motors, machine tools and mining equipment, as well as in food, petrochemical and automotive plants where uptime matters. Their capacity for heavy radial loads at speed suits power transmission lines and roller systems on production floors.
Choosing the right variant starts with the radial load, the rotation speed and the surrounding conditions. Where thermal expansion or interference fits are part of the picture, C3 clearance is the usual recommendation. Decide on sealing according to contamination risk: sealed or shielded versions make sense in dirty settings. Match the lubricant to the speed and temperature the bearing will see, and during mounting keep alignment accurate and avoid impacts that could mark the rollers or raceways.
For cross-referencing, SKF NJ series bearings can be swapped with equivalents from other makers that share the same dimensional and suffix designation, including FAG, NSK and NTN. Tolerances and radial clearance can differ from one manufacturer to another, so verify them before committing. MR Industrial Accessories offers SKF as one of the brands it supplies, backed by technical support.
If you need an SKF cylindrical roller bearing, our team can help you select the correct option. Send the part number by WhatsApp or email and we will respond promptly with a quote.
Dimensions
35 x 80 x 31 mm (d x D x B): boundary dimensions for basic designation NJ 2307, according to ISO 15.
- Bore
- 35mm
- Outside diameter (D)
- 80mm
- Width (B)
- 31mm
Same size, other brands
Other brands' pages with basic designation NJ 2307: 35 x 80 x 31 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 NJ 2307 ECP/C3 bearing: what are its dimensions?
- SKF NJ 2307 ECP/C3 measures 35 mm across the bore and 80 mm across the outside diameter; its width is 31 mm (35 x 80 x 31 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation NJ 2307.
- What does the C3 suffix mean on an SKF NJ bearing?
- C3 indicates radial internal clearance above the standard value. It is chosen when high operating temperatures or mounting fits would otherwise reduce clearance and create excessive preload.
- What is the difference between the ECP and EC suffixes on SKF bearings?
- EC denotes an optimized design with higher load capacity. The P added to it means the cage is polyamide, which lowers weight and helps at high speeds. The two letters often appear together as ECP.
- Can I replace an SKF NJ bearing with one from another brand?
- Yes, provided the dimensional designation and suffixes match. FAG, NSK and NTN offer equivalents. Check tolerances and radial clearance, since these can vary. Contact us via WhatsApp for advice.