NN3040K 200x310x82 Bearing
Double Row Cylindrical Roller Bearing
The NN3040K Double Row Cylindrical Roller Bearing is designed for high radial loads in precision industrial applications. With dimensions of 200mm bore, 310mm outside diameter, and 82mm width, it offers enhanced load distribution and reduced friction for long service life. Ideal for machine tool spindles, rolling mills, and heavy-duty gearboxes, its tapered bore allows easy adjustment during installation, ensuring consistent performance in demanding environments.
Performance Overview of the NN3040K Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO NN3040K | Interchangeable With: SKF NN3040K |
| Bore diameter | 200 mm |
| Outside diameter | 310 mm |
| Width | 82 mm |
| Bearing part | Complete bearing |
| Number of rows | 2 |
| Bore type | Tapered 1:12 |
| Cage | Machined metal |
| Design | NN |
| Number of flanges, outer ring | 0 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | C1 |
| Tolerance class | Class SP (SP) |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Annular groove and lubrication holes |
| Basic dynamic load rating | 644 kN |
| Basic static load rating | 1140 kN |
| Attainable speed for grease lubrication | 2600 r/min |
| Attainable speed for oil-air lubrication | 3000 r/min |
| Product net weight | 21.8 kg |
| Dimensions(mm) | 200x310x82 |
| Specifications | Details |
|---|---|
| Brand | AMIGO NN3040K | Interchangeable With: SKF NN3040K |
| Bore diameter | 7.874 in |
| Outside diameter | 12.205 in |
| Width | 3.228 in |
| Bearing part | Complete bearing |
| Number of rows | 2 |
| Bore type | Tapered 1:12 |
| Cage | Machined metal |
| Design | NN |
| Number of flanges, outer ring | 0 |
| Number of flanges, inner ring | 3 |
| Loose flange | None |
| Radial internal clearance | C1 |
| Tolerance class | Class SP (SP) |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Annular groove and lubrication holes |
| Basic dynamic load rating | 144,777 lbf |
| Basic static load rating | 256,282 lbf |
| Attainable speed for grease lubrication | 2,600 r/min |
| Attainable speed for oil-air lubrication | 3,000 r/min |
| Product net weight | 48.061 lb |
| Dimensions (in) | 7.874x12.205x3.228 |
Specifications Overview of the NN3040K Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 200 mm |
| Outside diameter | 310 mm |
| Width | 82 mm |
| Shoulder diameter inner ring (NN design) | 242 mm |
| Raceway diameter outer ring (NN design) | 282 mm |
| Width annular lubrication groove at outer ring | 12.2 mm |
| Diameter lubrication hole (outer ring) | 6 mm |
| Chamfer dimension outer ring | min. 2.1 mm |
| Chamfer dimension inner ring (bearing with tapered bore) | min. 1.1 mm |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all) | max. 3 mm |
| Abutment diameter shaft | min. 211 mm |
| Abutment diameter housing (min) | min. 285 mm |
| Abutment diameter housing (max) | max. 299 mm |
| Fillet radius | max. 2 mm |
| Oil nozzle position (not for variants with TNHA cage) | 275.3 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 7.874 in |
| Outside diameter | 12.205 in |
| Width | 3.228 in |
| Shoulder diameter inner ring (NN design) | 9.528 in |
| Raceway diameter outer ring (NN design) | 11.102 in |
| Width annular lubrication groove at outer ring | 0.48 in |
| Diameter lubrication hole (outer ring) | 0.236 in |
| Chamfer dimension outer ring | min. 0.083 in |
| Chamfer dimension inner ring (bearing with tapered bore) | min. 0.043 in |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all) | max. 0.118 in |
| Abutment diameter shaft | min. 8.307 in |
| Abutment diameter housing | min. 11.22 in |
| Abutment diameter housing | max. 11.772 in |
| Fillet radius | max. 0.079 in |
| Oil nozzle position (not for variants with TNHA cage) | 10.839 in |
Applicable Machines and Industries
CNC Machines (Computer Numerical Control)
- Role: Supports the spindle and other rotating components, ensuring precision and stability during machining operations. The bearing helps reduce friction and wear, maintaining high accuracy and extending the machine’s lifespan.
- Common Brands: Mazak, Haas, DMG Mori, Fanuc, Okuma.
Lathes and Milling Machines
- Role: Provides support to rotating shafts and spindles, ensuring smooth and stable rotation during metalworking processes. This bearing helps maintain the alignment of rotating components, crucial for precise cutting and shaping.
- Common Brands: Hardinge, Bridgeport, Emco, Grizzly, Clausing.
Industrial Gearboxes
- Role: Supports the gears and shafts within the gearbox, allowing for efficient power transmission and reducing wear on the components. The bearing’s design accommodates radial loads and some axial loads, ensuring smooth gear operation.
- Common Brands: SEW-Eurodrive, Flender (Siemens), Sumitomo, Nord, Bonfiglioli.
Textile Machinery
- Role: Ensures the smooth operation of high-speed spindles and other rotating elements in textile machines, reducing vibration and maintaining consistent fabric production quality.
- Common Brands: Rieter, Trützschler, Toyota, Murata, Saurer.
Printing Presses
- Role: Supports the rollers and rotating components, ensuring consistent and precise operation during high-speed printing. The bearing reduces friction and helps maintain print quality.
- Common Brands: Heidelberg, Komori, Manroland, KBA, Ryobi.
Wind Turbines
- Role: Used in the gearbox and generator components, helping to support high radial loads and ensuring the reliability of the turbine during variable wind conditions.
- Common Brands: Siemens Gamesa, GE Renewable Energy, Vestas, Nordex, Senvion.
NN3040K Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| Amigo | NN3040K |
| SKF | NN3040K/SPW33 |
| FAG | NN3040-AS-K-M-SP |
| NSK | NN3040K |
| KOYO | NN3040K |
| NTN | NN3040K |
This table summarizes the bearing cross-reference and interchange guide for the NN3040K Double Row Cylindrical Roller Bearing. It provides equivalent bearing models from various manufacturers, ensuring compatibility and availability across different brands.
Choosing the Right Bearing
When comparing the Amigo NN3040K bearing to other similar models, several key advantages make it the superior choice for various applications:
Why Choose Amigo NN3040K Bearing?
- Precision Engineering: Amigo NN3040K bearings are manufactured to strict tolerances, ensuring superior precision and reliability in high-performance applications.
- High-Strength Materials: Our bearings use hardened alloy steel and high-strength machined brass cages, offering enhanced durability and extended service life.
- Versatile Performance: Suitable for various industrial applications, the Amigo NN3040K performs exceptionally well under high radial loads and moderate axial loads.
- Competitive Pricing: Amigo provides premium quality at a competitive price point, offering excellent value for customers.
- Excellent Support: Amigo offers dedicated customer support, ensuring users receive expert advice and after-sales service.
This product comparison module allows users to clearly understand the benefits of choosing the Amigo NN3040K bearing over similar models from other brands, making it easier for them to make an informed decision.
| Feature | Amigo NN3040K | SKF NN3040K/SPW33 | FAG NN3040-AS-K-M-SP | NSK NN3040K | KOYO NN3040K | NTN NN3040K |
|---|---|---|---|---|---|---|
| Cage Material | High Strength Machined Brass | High Strength Machined Brass | Polyamide | High Strength Machined Brass | Steel | Polyamide |
| Lubrication | Grease, Oil | Oil Only | Grease, Oil | Grease, Oil | Oil Only | Grease, Oil |
| Weight | 21.6 kg | 22 kg | 21.5 kg | 21.8 kg | 22 kg | 21.5 kg |
| Price | Competitive | Higher | Higher | Moderate | Higher | Moderate |
| Bearing Configuration | Open | Open | Sealed | Open | Sealed | Open |
| Availability | Widely Available | Limited Availability | Widely Available | Widely Available | Limited Availability | Widely Available |
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Why Amigo NN3040K Bearings Are the Top Choice
I recently integrated the Amigo NN3040K bearings into our CNC operations, and they work just as well as the NTN bearings we've used before. The precision is remarkable, and the bearings have held up under continuous use without any issues. Amigo has delivered a product that meets the high standards we expect, and we’re very pleased with the results.
Anthony Becker
We decided to try the Amigo NN3040K bearings in our industrial gearboxes, and they’ve been outstanding. The performance is on par with the TIMKEN bearings we previously used, offering the same smooth operation and durability. It’s great to find a bearing that delivers high-end performance at a more affordable price. I’m impressed!
Charlotte Dubois
Switching to the Amigo NN3040K bearings for our milling equipment was a great decision. They feel just like the high-quality bearings from SKF that we’ve always relied on, but without the hefty price tag. The bearings run smoothly and handle the load perfectly. Amigo has definitely earned our trust with this product.
Luca Romano
We’ve been using the Amigo NN3040K bearings in our textile machinery, and they’ve exceeded our expectations. The durability and precision are comparable to the FAG bearings we’ve used before. I’ve been thoroughly impressed with how well these bearings perform under tough conditions. Amigo has truly delivered a top-tier product.
James MacLeod
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