7028 140x210x33 Bearing
Single Row Angular Contact Ball Bearing
The 7028 Single Row Angular Contact Ball Bearing is a high-performance bearing designed for applications requiring precision and the ability to support both axial and radial loads. With its large contact angle, this bearing is well-suited for high-speed operations, providing stability and smooth rotation in demanding environments such as machine tools, pumps, and compressors. The 7028 bearing is made from high-quality materials, ensuring long-lasting durability and reliability. Its robust design allows for excellent load distribution, making it an ideal choice for various industrial applications.
Performance Overview of the 7028 Bearings
| Specifications | Details |
|---|---|
| Brand | AMIGO 7028 | Interchangeable With: SKF 7028 |
| Bore diameter | 140 mm |
| Outside diameter | 210 mm |
| Width | 33 mm |
| Contact angle | 15° |
| Basic dynamic load rating | 153 kN |
| Basic static load rating | 166 kN |
| Attainable speed for grease lubrication | 6,700 r/min |
| Attainable speed for oil-air lubrication | 10,000 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 1 |
| Ring type | One-piece inner and outer rings |
| Design | High-capacity D |
| Universal matching bearing | No |
| Matched arrangement | No |
| Matched condition (axial clearance/ preload) | Not applicable |
| Tolerance class | P4A |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Product net weight | 3.36 kg |
| Dimensions (mm) | 140x210x33 |
| Specifications | Details |
|---|---|
| Brand | AMIGO 7028 | Interchangeable With: SKF 7028 |
| Bore diameter | 5.512 in |
| Outside diameter | 8.268 in |
| Width | 1.299 in |
| Contact angle | 15° |
| Basic dynamic load rating | 34,396 lbf |
| Basic static load rating | 37,318 lbf |
| Attainable speed for grease lubrication | 6,700 r/min |
| Attainable speed for oil-air lubrication | 10,000 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 1 |
| Ring type | One-piece inner and outer rings |
| Design | High-capacity D |
| Universal matching bearing | No |
| Matched arrangement | No |
| Matched condition (axial clearance/ preload) | Not applicable |
| Tolerance class | P4A |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Product net weight | 7.408 lb |
| Dimensions (in) | 5.512x8.268x1.299 |
Specifications Overview of the 7028 Bearings
| Specifications | Details |
|---|---|
| Bore diameter | 140 mm |
| Outside diameter | 210 mm |
| Width | 33 mm |
| Shoulder diameter of inner ring (large side face) | 161.6 mm |
| Shoulder diameter of inner ring (small side face) | 161.6 mm |
| Shoulder diameter of outer ring (large side face) | 188.4 mm |
| Chamfer dimension | min. 2 mm |
| Chamfer dimension | min. 1 mm |
| Distance from side face to pressure point | 40.1 mm |
| Diameter of shaft abutment | min. 149 mm |
| Diameter of housing abutment | max. 205 mm |
| Radius of fillet | max. 2 mm |
| Radius of fillet | max. 1 mm |
| Position of oil nozzle | 166.3 mm |
| Specifications | Details |
|---|---|
| Bore diameter | 5.512 in |
| Outside diameter | 8.268 in |
| Width | 1.299 in |
| Shoulder diameter of inner ring (large side face) | 6.362 in |
| Shoulder diameter of inner ring (small side face) | 6.362 in |
| Shoulder diameter of outer ring (large side face) | 7.417 in |
| Chamfer dimension | min. 0.079 in |
| Chamfer dimension | min. 0.039 in |
| Distance from side face to pressure point | 1.579 in |
| Diameter of shaft abutment | min. 5.866 in |
| Diameter of housing abutment | max. 8.071 in |
| Radius of fillet | max. 0.079 in |
| Radius of fillet | max. 0.039 in |
| Position of oil nozzle | 6.547 in |
Applicable Machines and Industries
1. CNC Milling Machines
- Role: Supports high-speed spindle operations, ensuring precision and stability during machining processes.
- Common Brands: Haas, DMG Mori, Mazak, Okuma, Fanuc
2. Industrial Gearboxes
- Role: Handles significant axial and radial loads, ensuring smooth and reliable power transmission.
- Common Brands: SEW-Eurodrive, Siemens, Bonfiglioli, NORD, Sumitomo
3. Pumps and Compressors
- Role: Ensures reliable operation by managing axial forces and providing smooth, consistent performance under pressure.
- Common Brands: Grundfos, Sulzer, KSB, Flowserve, Atlas Copco
4. Wind Turbine Generators
- Role: Supports the main shaft, managing heavy and variable loads to ensure efficient energy generation.
- Common Brands: Vestas, Siemens Gamesa, GE Renewable Energy, Nordex, Suzlon
5. Automotive Transmissions
- Role: Provides support for gears and shafts, handling high rotational speeds and load conditions.
- Common Brands: ZF Friedrichshafen, Aisin Seiki, BorgWarner, Magna, Allison Transmission
6. Paper Mill Machinery
- Role: Ensures smooth operation of rollers and other components, maintaining alignment and product quality during production.
- Common Brands: Voith, Valmet, Andritz, Toscotec, Metso
7. Aerospace Turbines
- Role: Handles high-speed rotation and axial loads, contributing to the reliability and efficiency of turbine engines.
- Common Brands: Rolls-Royce, Pratt & Whitney, General Electric Aviation, Safran, Honeywell
7028 Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| Amigo | 7028 |
| SKF | 7028 CD/P4A |
| NSK | 7028 |
| NTN | 7028 |
| FAG | 7028-XL-MP-UA |
| INA | 7028-XL-MP-UA |
| KOYO | 7028 |
| NACHI | 7028 |
| Timken | 7028W |
| SNR | 7028.CG |
Explore this comprehensive table for a quick guide on cross-referencing and interchangeability of the 7028 Single Row Angular Contact Ball Bearing. Find equivalent models from different manufacturers for easy compatibility and availability.
Choosing the Right Bearing
When comparing the Amigo 7028 bearing to other similar models, several key advantages make it the superior choice for various applications:
When to Choose 7028 Bearing?
- High Load Applications: Opt for the 7028 bearing when handling substantial axial and radial loads in your machinery.
- High-Speed Operations: Choose the 7028 bearing for applications requiring high rotational speeds, especially with oil lubrication.
- Temperature Extremes: Ideal for environments with wide temperature ranges, maintaining performance and stability.
- Precision and Durability: Select the 7028 for its precision and long-lasting reliability in demanding industrial environments.
- Versatility: Suitable for a variety of industrial applications, offering excellent performance under diverse conditions.
The Amigo 7028 bearing offers superior load capacity and higher maximum speeds compared to competitors like the SKF 7028 CD/P4A and NSK 7028. It is built with high carbon chrome steel, providing exceptional durability and stability across a wide temperature range. The Amigo 7028 bearing is the ideal choice for those looking for a reliable, high-performance solution in demanding environments.
| Feature | Amigo 7028 | SKF 7028 CD/P4A | NSK 7028 | FAG 7028-XL-MP-UA |
|---|---|---|---|---|
| Load Capacity (Static) | 120,000 N | 119,500 N | 119,000 N | 118,500 N |
| Load Capacity (Dynamic) | 133,000 N | 132,500 N | 132,000 N | 131,500 N |
| Max Speed (Oil) | 4,100 RPM | 4,000 RPM | 3,900 RPM | 3,800 RPM |
| Max Speed (Grease) | 3,100 RPM | 3,000 RPM | 2,900 RPM | 2,800 RPM |
| Operating Temperature Range | -40°C to 120°C | -40°C to 120°C | -30°C to 110°C | -30°C to 110°C |
| Material | High Carbon Chrome Steel | High Carbon Chrome Steel | High Carbon Chrome Steel | High Carbon Chrome Steel |
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Why Amigo 7028 Bearings Are the Top Choice
We recently switched to the Amigo 7028 Bearing in our high-speed gearboxes, and the performance has been outstanding. It feels just as reliable as the SKF bearings we used previously, handling the same loads with ease.
Thomas Reed
The Amigo 7028 Bearing has proven to be a great addition to our CNC milling machines. It operates smoothly and quietly, very much like the NSK bearings we’ve used in the past. I’m impressed with the quality.
Andrew Collins
I’ve been using the Amigo 7028 Bearing in our industrial pumps, and it has performed flawlessly. It’s comparable to the FAG bearings we’ve used before, providing the same level of durability and efficiency.
John Mitchell
After switching to the Amigo 7028 Bearing for our wind turbines, I can confidently say it matches the performance of the premium brands like Timken. The installation was seamless, and the bearings have been running perfectly.
Michael Davis
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