NNCF5076-CV bearing: complete specifications & equivalents
The NNCF5076-CV is a ISO 15 radial bearing sized 380 x 560 x 243 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 380 mm |
| Outer diameter D | 560 mm |
| Width B | 243 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 4680 kN |
| Basic static load rating C0 | 9150 kN |
| Fatigue load limit Pu | 750 kN |
| Reference speed (thermal) | 480 rpm |
| Limiting speed (mechanical) | 600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 200000 g |
| Manufacturer designation | SKF NNCF 5076 CV |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.4 double-row full complement cylindrical roller bearings |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.4 double-row full complement cylindrical roller bearings) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.4 double-row full complement cylindrical roller bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & NNCF5000-series range
| Bore d | 14.961 in |
|---|---|
| Outer diameter D | 22.047 in |
| Width B | 9.567 in |
| ISO bore code | 76 |
| Radial section height (D−d)/2 | 90 mm |
| Smallest bore in NNCF5000-series | 20 mm |
| Largest outer diameter in NNCF5000-series | 600 mm |
| Width range across NNCF5000-series | 30–272 mm |
| Bore position in NNCF5000-series (smallest first) | 35 of 36 |
| Bore above smallest NNCF5000-series size | 360 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the NNCF5076-CV model number is decoded
NNCF5076-CV is the 380 mm bore entry in the NNCF5000 range: a 380×560×243 mm double-row full-complement cylindrical roller bearing with a full complement of extra rollers fitted in place of a cage, rated C 4680 kN / C0 9150 kN. Reading the NNCF prefix: a non-separable double-row full complement bearing with three integral flanges on the inner ring and one retaining ring in the outer ring; the outer ring also has an annular lubrication groove with holes. This makes the execution one-direction locating: the retained outer ring guides the shaft axially in one direction. Reading the order-string suffix CV: the full-complement execution — extra rollers replace the cage, trading speed for maximum radial capacity and stiffness. Selection arithmetic: C0/C ≈ 1.96 (9150 against 4680 kN), and the Pu figure 750 kN is the fatigue load-limit floor for the SKF life equation; the catalogue lists 480 r/min thermal reference speed and 600 r/min mechanical limiting speed. Fit practice for NNCF5076-CV: the retaining ring must never be loaded axially in operation; route relubrication through the outer-ring groove and keep the unit non-separable during handling. Single-row cylindrical rollers tolerate only about 3–4 minutes of arc misalignment, so verify shaft and housing alignment.
Typical equipment & failure modes
Common applications
- mining shovel and dragline pivots
- steelmaking and heavy crane sheaves
- large offshore winch and hook blocks
Known failure patterns
- inner-ring raceway spalling from overload or contamination in the line-contact hertz zone
- outer-ring raceway fatigue after extended service at loads above the catalogue L10 rating
- roller smearing between the uncaged rollers during slow skidding starts under heavy static load
- cage pocket wear from roller skidding at insufficient radial load or during start-up before oil film build-up
- surface distress (micro-pitting) when the EHL film falls below the composite roughness at high specific load
- uneven row loading from misalignment, concentrating fatigue on one row of the double complement
- fretting corrosion on a loose rotating shaft seat or in a vibratory stand-still
Selection pitfalls — read before you substitute
- The NNCF/NNCL/NNC triplet shares the envelope and ratings but differs in outer-ring retention — one retaining ring, none, or two; selecting the wrong one changes the axial-locating scheme.
- Relubrication must reach both roller rows through the annular groove; blocked lube holes starve one row silently and show later as asymmetric raceway wear.
- Shaft and housing fillets must clear the bearing chamfers; an oversized radius tilts the 243 mm-wide ring and concentrates load.
- Press-fit force goes through ring faces only; driving a ring home through the rollers brinells the 560 mm raceway.
- The 4680/9150 kN ratings are SKF catalogue 17000 (2018) values for the CV execution; re-verify against the current catalogue for critical drives and keep the catalogue version with the specification.
Frequently asked questions
What are the dimensions and catalogue data of NNCF5076-CV?
SKF NNCF 5076 CV is a double-row full-complement cylindrical roller bearing with 380 mm bore, 560 mm OD and 243 mm width per ISO 15. SKF lists C 4680 kN, C0 9150 kN, Pu 750 kN, reference speed 480 r/min and limiting speed 600 r/min, mass about 200000 g.
What does the NNCF designation and CV suffix mean?
Suffix CV identifies the full-complement execution: the space a cage would occupy is filled with extra rollers, trading speed for maximum radial capacity and stiffness. Structurally this execution has a non-separable double-row full complement bearing with three integral flanges on the inner ring and one retaining ring in the outer ring; the outer ring also has an annular lubrication groove with holes.
Can NNCF5076-CV take axial load and locate the shaft?
In one direction, via the retained outer ring; the retaining ring is not a load path for continuous thrust.
How does NNCF5076-CV compare with the other executions in the same envelope?
NNCF (one outer retaining ring, one-direction guidance), NNCL (no retaining ring, floating outer ring) and NNC (retaining rings both sides, two-direction location) share the ISO envelope and ratings but are not interchangeable in a locating arrangement.
What limits the service life of this bearing most often?
On full-complement bearings the dominant risks are roller smearing from skidding below minimum load and contamination; maintain minimum radial load, keep lubricant film thick and accelerate gently.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 6.4 double-row full complement cylindrical roller bearings on 2026-09-26. Read our editorial & correction policy.