NJ214 70x125x24 Bearing
Single Row Cylindrical Roller Bearing
The NJ214 Single Row Cylindrical Roller Bearing is designed for industrial applications requiring high load capacity and precision. With dimensions of 70x125x24 mm, this bearing handles heavy radial and moderate axial loads in one direction, making it ideal for high-speed operations. Manufactured from high-quality steel, it ensures durability and efficiency, with minimal friction and wear. The separable inner ring allows for easy installation and maintenance, making the NJ214 suitable for gearboxes, motors, and other machinery needing reliable, smooth operation.
Performance Overview of the NJ214 Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO NJ214 | Interchangeable With: SKF NJ214 |
| Bore diameter | 70 mm |
| Outside diameter | 125 mm |
| Width | 24 mm |
| Basic dynamic load rating | 137 kN |
| Basic static load rating | 137 kN |
| Reference speed | 6,000 r/min |
| Limiting speed | 6,300 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 1 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Non-metallic |
| Number of flanges, outer ring | 2 |
| Number of flanges, inner ring | 1 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 1.18 kg |
| Specifications | Details |
|---|---|
| Brand | AMIGO NJ214 | Interchangeable With: SKF NJ214 |
| Bore diameter | 2.756 in |
| Outside diameter | 4.921 in |
| Width | 0.945 in |
| Basic dynamic load rating | 30,799 lbf |
| Basic static load rating | 30,799 lbf |
| Reference speed | 6,000 r/min |
| Limiting speed | 6,300 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In one direction |
| Number of rows | 1 |
| Locating feature, bearing outer ring | None |
| Bore type | Cylindrical |
| Cage | Non-metallic |
| Number of flanges, outer ring | 2 |
| Number of flanges, inner ring | 1 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 2.595 lb |
Specifications Overview of the NJ214 Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 70 mm |
| Outside diameter | 125 mm |
| Width | 24 mm |
| Shoulder diameter of inner ring | ≈ 89.4 mm |
| Shoulder diameter of outer ring | ≈ 108.3 mm |
| Raceway diameter of inner ring | 83.5 mm |
| Chamfer dimension r1,2 | min. 1.5 mm |
| Chamfer dimension r3,4 | min. 1.5 mm |
| Permissible axial displacement | max. 1.2 mm |
| Diameter of spacer sleeve (min) | min. 79 mm |
| Diameter of spacer sleeve (max) | max. 81 mm |
| Diameter of shaft abutment | min. 92 mm |
| Diameter of housing abutment | max. 115.4 mm |
| Radius of fillet | max. 1.5 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 2.756 in |
| Outside diameter | 4.921 in |
| Width | 0.945 in |
| Shoulder diameter of inner ring | ≈ 3.52 in |
| Shoulder diameter of outer ring | ≈ 4.264 in |
| Raceway diameter of inner ring | 3.287 in |
| Chamfer dimension r1,2 | min. 0.059 in |
| Chamfer dimension r3,4 | min. 0.059 in |
| Permissible axial displacement | max. 0.047 in |
| Diameter of spacer sleeve (min) | min. 3.11 in |
| Diameter of spacer sleeve (max) | max. 3.189 in |
| Diameter of shaft abutment | min. 3.622 in |
| Diameter of housing abutment | max. 4.543 in |
| Radius of fillet | max. 0.059 in |
Applicable Machines and Industries
The NJ214 Single Row Cylindrical Roller Bearing is used in various types of machinery due to its high load capacity and precision. Below are examples of machines where the NJ214 bearing is typically applied, the role it plays, and common brands associated with these machines:
1. Gearboxes
- Role: Supports the shafts, ensuring smooth rotation and maintaining the alignment of gears under heavy loads.
- Common Brands: Siemens, SEW-Eurodrive, Bonfiglioli
2. Electric Motors
- Role: Ensures the rotor shaft rotates smoothly, minimizing friction and wear, thus extending the motor’s lifespan.
- Common Brands: ABB, Siemens, WEG
3. Pumps
- Role: Supports the rotating shaft, ensuring efficient operation by reducing friction and wear, which is critical for maintaining the pump’s performance.
- Common Brands: Grundfos, KSB, Sulzer
4. Conveyors
- Role: Facilitates the smooth operation of rollers and other moving parts, enabling the conveyor to handle heavy loads efficiently.
- Common Brands: FlexLink, Dematic, Rexnord
5. Compressors
- Role: Supports the rotating components, ensuring stability and reducing vibration, which is essential for maintaining the compressor’s efficiency.
- Common Brands: Ingersoll Rand, Atlas Copco, Kaeser
These applications demonstrate the versatility and critical role of the NJ214 bearing in ensuring the smooth and efficient operation of various types of industrial machinery.
NJ214 Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| NTN | NJ214 |
| SKF | NJ214 ECP |
| MRC | MR214G |
| Amigo | NJ214 |
This table and content provide a clear guide for users looking to cross-reference or interchange their NJ214 bearings with equivalent models from other brands, ensuring they can maintain optimal performance and reliability in their machinery.
Choosing the Right Bearing
When comparing the Amigo NJ214 bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose the Amigo NJ214 Bearing
Superior Operating Speed: The Amigo NJ214 bearing supports an operating speed of up to 6,300 r/min, which is slightly higher than other similar models like the SKF NJ214 ECP and NTN NJ214. This makes it ideal for applications requiring high-speed performance.
Durable Non-Metallic Cage: Unlike other models that use steel cages, the Amigo NJ214 features a non-metallic cage. This results in lower friction, reduced noise, and longer bearing life, making it a better choice for applications where these factors are critical.
Competitive Pricing: Despite offering similar or superior features to its competitors, the Amigo NJ214 is priced more competitively, providing great value without compromising on quality.
Optimal for Heavy Loads: The Amigo NJ214 excels in supporting heavy radial loads, similar to other models, but its combination of a non-metallic cage and higher operating speed gives it a distinct advantage in certain high-demand environments.
The Amigo NJ214 bearing is an excellent choice for users who need reliable, high-performance bearings at a competitive price. Its unique features, such as a higher operating speed and a non-metallic cage, make it stand out among other similar models. Whether you are looking to upgrade existing equipment or need a dependable bearing for new machinery, the Amigo NJ214 offers a robust solution that balances performance, durability, and cost-efficiency.
| Feature | Amigo NJ214 | SKF NJ214 ECP | NTN NJ214 | MRC MR214G |
|---|---|---|---|---|
| Radial Load Capacity | High | High | High | High |
| Axial Load Capacity | Moderate (One Direction) | Moderate (One Direction) | Moderate (One Direction) | Moderate (One Direction) |
| Operating Speed | Up to 6,300 r/min | Up to 6,000 r/min | Up to 6,000 r/min | Up to 6,000 r/min |
| Cage Material | Non-metallic | Steel | Steel | Steel |
| Precision | High (ISO Class CN) | High (ISO Class CN) | High (ISO Class CN) | High (ISO Class CN) |
| Price | Competitive | Higher | Moderate | Moderate |
| Availability | Widely Available | Widely Available | Widely Available | Widely Available |
Recommended Products for Optimal Performance
Enhance your bearing operations with these related products:
Why Amigo NJ214 Bearings Are the Top Choice
We recently upgraded to the Amigo NJ214 Bearing in our gearboxes, and the results have been fantastic. The performance is just as reliable as the SKF bearings we've used before, but at a better price. The installation was straightforward, and the machinery runs smoothly, even under heavy loads. We’re very satisfied with this switch and will continue to use Amigo bearings in our other equipment.
Brett C Woodfin
After using the Amigo NJ214 Bearing in our electric motors, I can confidently say that it’s on par with the NTN bearings we’ve previously relied on. The Amigo bearing offers excellent durability and operates quietly at high speeds. The non-metallic cage is a great feature, reducing friction and wear. It feels like a high-end bearing without the high-end cost.
William S Hayden
We've been using the Amigo NJ214 Bearing in our industrial pumps for a few months now, and it has exceeded our expectations. The performance is comparable to the FAG bearings we've used, with smooth operation and no signs of wear so far. The bearing handles the high-pressure environment perfectly, and we’re impressed with its longevity.
Arthur A Ruest
I was initially hesitant to switch from SKF to Amigo, but after trying the NJ214 Bearing, I'm glad I did. The bearing performs exceptionally well, handling high radial loads just as effectively as the SKF models. The slightly higher operating speed is a bonus, and we haven’t noticed any drop in quality or performance. Amigo has proven to be a reliable alternative.
Sophie L Zimmerman
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