7309 45x100x25 Bearing
Single Row Angular Contact Ball Bearings
The 7309 bearing features a single row of rolling elements, arranged in an angular contact configuration. This design allows the bearing to support high axial loads in one direction while also handling moderate radial loads. The contact angle of the bearing is optimized to ensure maximum load-bearing capacity, making it suitable for applications where combined loads are present. The 7309 bearing is typically made from high-quality bearing steel, providing excellent resistance to wear, fatigue, and corrosion, thus ensuring a long service life even under demanding operating conditions.
Performance Overview of the 7309 Bearings
| Specification | Details |
|---|---|
| Brand | AMIGO 7309 | Interchangeable With: SKF 7309 |
| Bore Diameter | 45 mm |
| Outside Diameter | 100 mm |
| Width | 25 mm |
| Contact Type | Normal contact (two-point contact) |
| Number of Rows | 1 |
| Locating Feature, Bearing Outer Ring | None |
| Ring Type | One-piece inner and outer rings |
| Cage | Non-metallic |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Axial Internal Clearance | Not applicable |
| Tolerance Class | Normal |
| Material, Bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | Without |
| Basic Dynamic Load Rating | 55.9 kN |
| Basic Static Load Rating | 37.5 kN |
| Reference Speed | 8,500 r/min |
| Limiting Speed | 8,000 r/min |
| Product Net Weight | 0.812 kg |
| Dimensions(mm) | :45x100x25 |
| Specification | Details |
|---|---|
| Brand | AMIGO 7309 | Interchangeable With: SKF 7309 |
| Bore Diameter | 1.772 in |
| Outside Diameter | 3.937 in |
| Width | 0.984 in |
| Contact Type | Normal contact (two-point contact) |
| Number of Rows | 1 |
| Locating Feature, Bearing Outer Ring | None |
| Ring Type | One-piece inner and outer rings |
| Cage | Non-metallic |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Axial Internal Clearance | Not applicable |
| Tolerance Class | Normal |
| Material, Bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | Without |
| Basic Dynamic Load Rating | 12,567 lbf |
| Basic Static Load Rating | 8,430 lbf |
| Reference Speed | 8,500 r/min |
| Limiting Speed | 8,000 r/min |
| Product Net Weight | 1.79 lb |
| Dimensions(mm) | :45x100x25 |
Specifications Overview of the 7309 Bearings
| Specification | Details |
|---|---|
| Bore Diameter | 45 mm |
| Outside Diameter | 100 mm |
| Width | 25 mm |
| Distance Side Face to Pressure Point | 43 mm |
| Chamfer Dimension (r1,2) | min. 1.5 mm |
| Chamfer Dimension (r3,4) | min. 1 mm |
| Diameter of Shaft Abutment (da) | min. 54 mm |
| Abutment Diameter Housing (Da) | max. 91 mm |
| Diameter of Housing Abutment (Db) | max. 94.4 mm |
| Radius of Fillet (ra) | max. 1.5 mm |
| Radius of Fillet (rb) | max. 1 mm |
| Specification | Details |
|---|---|
| Bore Diameter | 1.772 in |
| Outside Diameter | 3.937 in |
| Width | 0.984 in |
| Distance Side Face to Pressure Point | 1.693 in |
| Chamfer Dimension (r1,2) | min. 0.059 in |
| Chamfer Dimension (r3,4) | min. 0.039 in |
| Diameter of Shaft Abutment (da) | min. 2.126 in |
| Abutment Diameter Housing (Da) | max. 3.583 in |
| Diameter of Housing Abutment (Db) | max. 3.717 in |
| Radius of Fillet (ra) | max. 0.059 in |
| Radius of Fillet (rb) | max. 0.039 in |
Applicable Machines and Industries
The 7309 Single Row Angular Contact Ball Bearing is a versatile component widely used in various machines due to its ability to handle both radial and axial loads. Below are some of the common machines that utilize the 7309 bearing, its role in these machines, and the well-known brands associated with them:
1. Machine Tool Spindles
Role: In machine tool spindles, the 7309 bearing supports the spindle shaft, allowing for high-speed rotation and precision cutting operations. It helps in maintaining the alignment of the spindle while handling the cutting forces during machining.
Common Brands:Mazak、DMG Mori、Haas、Okuma
2. Electric Motors
Role: In electric motors, the 7309 bearing is used to support the rotor, ensuring smooth and efficient rotation. It helps in minimizing friction and heat generation, contributing to the motor’s overall performance and longevity.
Common Brands:Siemens、ABB、WEG、Baldor
3. Automotive Transmissions
Role: In automotive transmissions, the 7309 bearing plays a critical role in supporting the gears and shafts, facilitating the smooth transfer of power from the engine to the wheels. It ensures reliable operation under various load conditions.
Common Brands:ZF、Aisin、BorgWarner、Getrag
4. Pumps and Compressors
Role: The 7309 bearing is used in pumps and compressors to support rotating elements, such as impellers or rotors, ensuring consistent operation and efficiency. It helps in reducing vibration and wear, which are critical for the longevity of these machines.
Common Brands:Grundfos、Sulzer、Atlas Copco、Ingersoll Rand
5. Wind Turbines
Role: In wind turbines, the 7309 bearing is used in the main shaft and gearbox to handle the varying loads caused by wind forces. It ensures the stability and reliability of the turbine, contributing to energy generation efficiency.
Common Brands:GE Renewable Energy、Siemens Gamesa、Vestas、Nordex
7309 Bearing Cross Reference and Interchange
| Brand | Bearing Model |
|---|---|
| SKF | 7309 BECBP |
| FAG | 7209-B-TVP |
| NTN | 7309 |
| Amigo | 7309 |
Above is a cross reference and interchange guide to help you compare 7309 bearings with similar models from other manufacturers.
Choosing the Right Bearing
The 7309 Single Row Angular Contact Ball Bearings are crucial components in many high-precision applications. Below is a comparison table of the Amigo 7309 bearing against similar models from leading brands like SKF, FAG, and NTN. This comparison will assist in understanding when to choose the Amigo 7309 bearings and how they stand out in performance and value.
When to Choose 7309 Bearings
The 7309 bearings are a solid choice when your application requires handling both radial and axial loads efficiently. Here’s when you should choose the 7309 bearings:
- High Load Capacity: If your machinery demands bearings that can support heavy radial and axial loads simultaneously, the 7309 bearings are ideal.
- Precision Applications: Choose the 7309 for applications requiring high precision, such as machine tool spindles, electric motors, and automotive transmissions.
- Durability: The Amigo 7309 bearings are known for their enhanced durability, making them suitable for environments with high operational demands and frequent use.
Advantages of Amigo 7309 Bearings
When compared to other brands like SKF, FAG, and NTN, the Amigo 7309 bearings stand out for several reasons:
- Cost-Effectiveness: Amigo 7309 bearings offer the same high performance as leading brands but at a more competitive price, providing excellent value for money.
- Enhanced Durability: These bearings are designed to last longer, even under tough operating conditions, reducing the need for frequent replacements.
- Precision Engineering: Amigo 7309 bearings are manufactured to tight tolerances, ensuring reliable and consistent performance across various applications.
| Feature | Amigo 7309 | SKF 7309 BECBP | FAG 7209-B-TVP | NTN 7309 |
|---|---|---|---|---|
| Bore Diameter (d) | 45 mm | 45 mm | 45 mm | 45 mm |
| Outside Diameter (D) | 100 mm | 100 mm | 100 mm | 100 mm |
| Width (B) | 25 mm | 25 mm | 25 mm | 25 mm |
| Chamfer Dimension (r1,2) | min. 1.5 mm | min. 1.5 mm | min. 1.5 mm | min. 1.5 mm |
| Chamfer Dimension (r3,4) | min. 1 mm | min. 1 mm | min. 1 mm | min. 1 mm |
| Fillet Radius (ra, rb) | max. 1.5 mm | max. 1.5 mm | max. 1.5 mm | max. 1.5 mm |
| Performance | Comparable to SKF and NTN, with added durability | High-performance | Reliable under standard conditions | High load capacity |
Recommended Products for Optimal Performance
Enhance your bearing operations with these related products:
Why Amigo 7309 Bearings Are the Top Choice
"I recently switched to the Amigo 7309 bearings for our industrial machinery, and I must say, I am thoroughly impressed. The performance is on par with the SKF bearings we've used for years. The Amigo 7309 bearings offer smooth operation, excellent load capacity, and they seem to be just as durable. I would highly recommend these bearings to anyone looking for a reliable and cost-effective alternative."
John M
"We've been using SKF bearings for a long time, so we were hesitant to try something new. However, the Amigo 7309 bearings exceeded our expectations. The quality and performance are very similar to what we're used to with SKF, but at a better price point. The bearings have been running smoothly in our high-speed applications, with no issues. Definitely a great choice for those looking to maintain quality while reducing costs."
David P.
"I have used various brands over the years, including SKF, and I can confidently say that the Amigo 7309 bearings are just as good. They have handled heavy loads and high speeds in our equipment without any problems. The bearings are easy to install and operate with minimal noise and vibration, which is crucial for our operations. I'm very pleased with the performance of these bearings."
Sarah K.
"Amigo 7309 bearings are a fantastic alternative to the more expensive SKF bearings. We have used them in multiple machines, and they deliver consistent, reliable performance. The build quality is solid, and the bearings have a similar feel to SKF, which is a brand we trust. The cost savings without sacrificing quality makes Amigo 7309 an excellent choice for any business."
Emily R.
Explore More on Bearings
