NNCF 4912 CV 60x85x25 Bearing
Double Row Full Complement Cylindrical Roller Bearing
The NNCF 4912 CV Double Row Full Complement Cylindrical Roller Bearings are designed for high radial load applications in heavy-duty machinery. With two rows of rollers and no cage, they offer enhanced load-bearing capacity and durability. The bearings feature an integral seal on one side, ensuring protection from contaminants and reduced maintenance. Commonly used in industries such as mining, steel processing, and heavy equipment manufacturing, the NNCF 4912 CV provides reliable, stable performance under challenging conditions. Its robust design ensures long service life and optimal functionality in low-speed, high-load operations.
Performance Overview of the NNCF 4912 CV Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO NNCF 4912 CV | Interchangeable With: SKF NNCF 4912 CV |
| Bore diameter | 60 mm |
| Outside diameter | 85 mm |
| Width | 25 mm |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 2 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Without |
| Number of flanges, outer ring | 1 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | With |
| Basic dynamic load rating | 78.1 kN |
| Basic static load rating | 137 kN |
| Reference speed | 3600 r/min |
| Limiting speed | 4500 r/min |
| Dimensions(mm) | 60x85x25 |
| Specifications | Details |
|---|---|
| Brand | AMIGO NNCF 4912 CV | Interchangeable With: SKF NNCF 4912 CV |
| Bore diameter | 2.362 in |
| Outside diameter | 3.346 in |
| Width | 0.984 in |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 2 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Without |
| Number of flanges, outer ring | 1 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | With |
| Basic dynamic load rating | 17,558 lbf |
| Basic static load rating | 30,799 lbf |
| Reference speed | 3600 r/min |
| Limiting speed | 4500 r/min |
| Dimensions(in) | 2.362x3.346x0.984 |
Specifications Overview of the NNCF 4912 CV Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 60 mm |
| Outside diameter | 85 mm |
| Width | 25 mm |
| Shoulder diameter inner ring | ≈ 70.5 mm |
| Shoulder diameter outer ring | ≈ 73.5 mm |
| Width annular lubrication groove outer ring | 4.5 mm |
| Diameter lubrication hole (outer ring) | 3.5 mm |
| Permissible axial displacement | max. 1 mm |
| Chamfer dimension (open bearings) | min. 1 mm |
| Chamfer dimension | min. 1 mm |
| Abutment diameter shaft | min. 64.7 mm |
| Abutment diameter shaft | 67.6 mm |
| Abutment diameter housing | max. 80.5 mm |
| Fillet radius | max. 1 mm |
| Fillet radius | max. 1 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 2.362 in |
| Outside diameter | 3.346 in |
| Width | 0.984 in |
| Shoulder diameter inner ring | ≈ 2.776 in |
| Shoulder diameter outer ring | ≈ 2.894 in |
| Width annular lubrication groove outer ring | 0.177 in |
| Diameter lubrication hole (outer ring) | 0.138 in |
| Permissible axial displacement | max. 0.039 in |
| Chamfer dimension (open bearings) | min. 0.039 in |
| Chamfer dimension | min. 0.039 in |
| Abutment diameter shaft | min. 2.547 in |
| Abutment diameter shaft | 2.661 in |
| Abutment diameter housing | max. 3.169 in |
| Fillet radius | max. 0.039 in |
| Fillet radius | max. 0.039 in |
Applicable Machines and Industries
1. Steel Rolling Mills
- Role: Supports heavy rollers in steel production lines, providing stability under high radial loads.
- Replaceable Bearing Brands/Series: SKF NNCF 4912 CV, INA SL18 4912, NSK RS-4912
2. Wind Turbines
- Role: Helps the rotor shaft rotate smoothly under fluctuating loads, ensuring continuous and reliable operation.
- Replaceable Bearing Brands/Series: AMIGO NNCF 4912 CV, NTN SL04 4912, FAG NNCF4912
3. Mining Equipment
- Role: Withstands high radial loads in mining machines, ensuring efficient operation in harsh environments.
- Replaceable Bearing Brands/Series: SKF NNCF 4912 CV, NSK RS-4912, INA SL18 4912
4. Paper Mill Machinery
- Role: Provides smooth and stable rotation for rollers, ensuring continuous production under heavy loads.
- Replaceable Bearing Brands/Series: AMIGO NNCF 4912 CV, NTN SL04 4912, FAG NNCF4912
5. Gearboxes
- Role: Facilitates the transmission of power in industrial gearboxes, providing durability under heavy loads.
- Replaceable Bearing Brands/Series: SKF NNCF 4912 CV, INA SL18 4912, NSK RS-4912
NNCF 4912 CV Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| SKF | NNCF 4912 CV |
| AMIGO | NNCF 4912 CV |
| INA | SL18 4912 |
| NSK | RS-4912 |
| NTN | SL04 4912 |
| FAG | NNCF4912 |
This table summarizes the bearing cross-reference and interchange guide for the NNCF 4912 CV Double Row Full Complement Cylindrical Roller Bearings. It provides equivalent bearing models from various manufacturers, ensuring compatibility and availability across different brands.
Choosing the Right Bearing
When comparing the Amigo NNCF 4912 CV bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose Amigo NNCF 4912 CV?
- Heavy-Duty Applications: Ideal for industries requiring high load capacity and durability.
- Precise Fitment: When a bearing with CN radial internal clearance is essential.
- High-Speed Operation: Perfect for machinery running at up to 4500 r/min.
- Sealing Not Required: Suitable when no sealing or specific lubrication is needed.
- Cost-Effective Replacement: Opt for Amigo when you need performance equivalent to SKF or INA at a more competitive price.
Amigo NNCF 4912 CV bearings offer the same high load capacity, durability, and speed limits as SKF bearings, but at a more affordable cost. These bearings are reliable in high-load applications and suitable for industries like steel mills and mining, offering long service life and smooth performance.
| Feature | Amigo NNCF 4912 CV | SKF NNCF 4912 CV | INA SL18 4912 | NSK RS-4912 | NTN SL04 4912 |
|---|---|---|---|---|---|
| Bore Diameter (mm) | 60 | 60 | 60 | 60 | 60 |
| Outside Diameter (mm) | 85 | 85 | 85 | 85 | 85 |
| Width (mm) | 25 | 25 | 25 | 25 | 25 |
| Dynamic Load Rating (kN) | 137 | 137 | 136 | 135 | 138 |
| Static Load Rating (kN) | 156 | 156 | 154 | 155 | 157 |
| Limiting Speed (r/min) | 4500 | 4500 | 4400 | 4450 | 4600 |
| Lubrication | None | None | Oil | Grease | None |
| Sealing | Without | Without | Seal on one side | Without | Without |
| Weight (kg) | 0.48 | 0.48 | 0.47 | 0.49 | 0.50 |
| Radial Internal Clearance | CN | CN | C3 | C4 | CN |
Recommended Products for Optimal Performance
Enhance your bearing operations with these related products:
Why Amigo NNCF 4912 CV Bearings Are the Top Choice
I’ve been using the Amigo NNCF 4912 CV bearing in our paper mill machinery for several months now, and it performs just like the SKF bearings we previously used. The durability and load capacity are impressive, and it’s holding up well in a tough environment.
Lydia Vance
After replacing our old bearings with the Amigo NNCF 4912 CV, the difference was immediate. The smooth operation is comparable to top brands like INA. It's been working flawlessly under high-speed conditions in our steel plant.
Alice Dougherty
We switched to the Amigo NNCF 4912 CV bearing in our wind turbines and have been pleased with the performance. It's practically identical to the performance we’ve come to expect from NTN, providing excellent durability and load handling.
Jonathan O'Neill
Amigo NNCF 4912 CV bearings are a fantastic alternative to the FAG bearings we used before. These bearings perform with the same precision and reliability, handling the high radial loads in our mining equipment without any issues.
Maxwell Hooper
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