7004 20x42x12 Bearing
Single Row Angular Contact Ball Bearings
The 7004 Single Row Angular Contact Ball Bearings are designed to handle both radial and axial loads simultaneously, making them a crucial component in high-speed, high-precision applications. These bearings are particularly known for their ability to support heavy axial loads in one direction while operating at high speeds, making them ideal for industries that demand reliability, durability, and performance.
Performance Overview of the 7004 Bearings
| Category | Detail/Specification |
|---|---|
| Brand | AMIGO 7004 | Interchangeable With: SKF 7004 |
| Bore diameter | 20 mm |
| Outside diameter | 42 mm |
| Width | 12 mm |
| Basic dynamic load rating | 8.32 kN |
| Basic static load rating | 4.15 kN |
| 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 | Yes, back-to-back (<>), face-to-face (><) or tandem (>>) |
| Matched arrangement | No |
| Matched condition (axial clearance/preload) | Measuring load, class C |
| Tolerance class | P4A |
| Material, bearing | Hybrid (ceramic balls) |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Product net weight | 0.059 kg |
| Dimensions(mm) | 20x42x12 |
| Category | Detail/Specification |
|---|---|
| Brand | AMIGO 7004 | Interchangeable With: SKF 7004 |
| Bore diameter | 0.787 in |
| Outside diameter | 1.654 in |
| Width | 0.472 in |
| Basic dynamic load rating | 1,870 lbf |
| Basic static load rating | 933 lbf |
| 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 | Yes, back-to-back (<>), face-to-face (><) or tandem (>>) |
| Matched arrangement | No |
| Matched condition (axial clearance/preload) | Measuring load, class C |
| Tolerance class | P4A |
| Material, bearing | Hybrid (ceramic balls) |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Product net weight | 0.1301 lb |
| Dimensions(mm) | 20x42x12 |
Specifications Overview of the 7004 Bearings
| Dimensions | Details |
|---|---|
| Bore diameter | 20 mm |
| Outside diameter | 42 mm |
| Width | 12 mm |
| Shoulder diameter of inner ring (large side face) | 27.1 mm |
| Shoulder diameter of inner ring (small side face) | 27.1 mm |
| Shoulder diameter of outer ring (large side face) | 34.8 mm |
| Chamfer dimension (r1,2) | min. 0.6 mm |
| Chamfer dimension (r3,4) | min. 0.3 mm |
| Distance from side face to pressure point (a) | 13.3 mm |
| Dimensions | Details |
|---|---|
| Bore diameter | 0.787 in |
| Outside diameter | 1.654 in |
| Width | 0.472 in |
| Shoulder diameter of inner ring (large side face) | 1.067 in |
| Shoulder diameter of inner ring (small side face) | 1.067 in |
| Shoulder diameter of outer ring (large side face) | 1.37 in |
| Chamfer dimension (r1,2) | min. 0.024 in |
| Chamfer dimension (r3,4) | min. 0.012 in |
| Distance from side face to pressure point (a) | 0.524 in |
Applicable Machines and Industries
The 7004 Single Row Angular Contact Ball Bearings are widely used in various machines that require precision and the ability to handle both radial and axial loads. These bearings are designed for high-speed applications and ensure smooth, efficient, and long-lasting performance.
1. CNC Machines
Role: In CNC machines, 7004 bearings play a crucial role in ensuring precision and smooth movement of the spindle and rotating components. They support both radial and axial loads, which is essential for maintaining accuracy in cutting, drilling, and milling operations.
Common Brands:Haas Automation、Mazak、DMG Mori、FANUC、Okuma
2. High-Speed Spindles
Role: 7004 bearings are commonly used in high-speed spindles due to their ability to operate efficiently at high speeds while supporting axial and radial loads. Their angular contact design helps maintain the stability of the spindle during fast rotations.
Common Brands:HSD、GMN、KESSLER、IBAG、Colombo
3. Electric Motors
Role: In electric motors, 7004 bearings help reduce friction and ensure smooth, high-speed rotation. Their ability to handle axial and radial loads makes them perfect for motors that require consistent performance under demanding conditions.
Common Brands:Siemens、ABB、General Electric (GE)、WEG、Nidec
4. Robotic Arms
Role: These bearings are essential in robotic arms, where precision movement is critical. The 7004 bearings support both axial and radial loads, ensuring that the robotic joints move smoothly and accurately, especially in repetitive or high-speed tasks.
Common Brands:KUKA Robotics、ABB Robotics、FANUC Robotics、Yaskawa Robotics、Universal Robots
5. Turbine Engines
Role: In turbine engines, the 7004 bearings handle both the axial and radial forces generated during high-speed rotation. They ensure smooth rotation, reduce friction, and maintain efficiency in the engine.
Common Brands:Rolls-Royce、General Electric (GE) Aviation、Pratt & Whitney、Siemens Energy、MTU Aero Engines
7004 Bearing Cross Reference and Interchange
| Brand | Part Number |
|---|---|
| Amigo | 7004-B-XL-2RS-TVP |
| SKF | 7004BECBP |
| FAG | 7004-B-2RS-TVP |
| NSK | 7004 CTYNSULP4 |
The 7004 Single Row Angular Contact Ball Bearing is a highly versatile and widely used bearing in industries that require precision, durability, and efficiency.
Choosing the Right Bearing
The Amigo 7004-B-XL-2RS-TVP Angular Contact Ball Bearings offer a high-performance, cost-effective solution for industries that require both high-speed and high-load capabilities.
When to Choose Amigo 7004 Bearings
Choosing the right bearing is crucial for ensuring the smooth operation of machinery, whether in high-speed industrial equipment or precision systems. The Amigo 7004-B-XL-2RS-TVP Angular Contact Ball Bearings offer several advantages over other models, making them an excellent choice for a variety of demanding applications.
Cost Efficiency: Compared to brands like SKF and FAG, Amigo offers similar performance and specifications at a more affordable price. This makes Amigo bearings an ideal choice for businesses looking to optimize costs without sacrificing quality or reliability.
High-Speed Applications: With a limiting speed of 50,000 RPM (oil), Amigo 7004 bearings are designed for high-speed operations, such as those found in CNC machines, high-speed spindles, and electric motors. Their ability to handle both radial and axial loads ensures smooth, efficient performance in these high-demand environments.
Durable Construction: Manufactured using high-quality materials, including a durable phenolic cage, Amigo bearings provide excellent protection to the ball elements, reducing friction and wear. This ensures that the bearings can operate efficiently for extended periods under heavy loads.
Versatility Across Industries: Amigo 7004 bearings are versatile and can be used in a wide range of applications, from industrial machinery and robotic arms to turbine engines and automotive transmissions. Their sealed design offers additional protection from dust and debris, making them suitable for environments where contamination is a concern.
| Feature | Amigo 7004-B-XL-2RS-TVP | SKF 7004BECBP | FAG 7004-B-2RS-TVP | NSK 7004 CTYNSULP4 |
|---|---|---|---|---|
| Outer Diameter (D) | 42 mm | 42 mm | 42 mm | 42 mm |
| Bore Diameter (d) | 20 mm | 20 mm | 20 mm | 20 mm |
| Width (B) | 12 mm | 12 mm | 12 mm | 12 mm |
| Dynamic Load Rating (Cr) | 14,500 N | 14,500 N | 14,500 N | 14,500 N |
| Static Load Rating (C0r) | 8,000 N | 8,000 N | 8,000 N | 8,000 N |
| Limiting Speed (Grease) | 33,000 RPM | 33,000 RPM | 33,000 RPM | 33,000 RPM |
| Limiting Speed (Oil) | 50,000 RPM | 50,000 RPM | 50,000 RPM | 50,000 RPM |
| Cage Material | Phenolic | Phenolic | Phenolic | Phenolic |
| Sealing | Sealed | Open/Sealed | Sealed | Open/Sealed |
| Price | Affordable | Higher | Higher | Moderate |
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Why Amigo 7004 Bearings Are the Top Choice
"I’ve been using the Amigo 7004 bearings in our high-speed CNC machines, and I must say, they perform just as well as the SKF bearings we’ve used previously. The smooth operation and precision feel are nearly identical to the premium brands. I appreciate how durable and reliable these bearings are under heavy loads. Plus, the price point makes them a cost-effective alternative to SKF without sacrificing any quality. Highly recommend for anyone looking for quality bearings at a great price."
John M
"We decided to give Amigo 7004 bearings a try in our industrial electric motors, and they have been excellent. Compared to the FAG bearings we were using, these Amigo bearings deliver the same high-level performance. They handle both axial and radial loads with ease and run smoothly, even at high speeds. The bearings have shown great durability, and we haven’t experienced any issues. These are a fantastic alternative to FAG bearings, especially when you factor in the cost savings."
David P.
"I was a bit hesitant to switch from NSK to Amigo 7004 bearings, but after using them in our spindle applications, I’m impressed! They feel and perform very similar to NSK bearings, maintaining high speeds and precision under load. There’s no noticeable difference in performance, but the price difference is significant. These Amigo bearings have proven to be a great investment for our operations, providing the same quality at a fraction of the cost."
Sarah K.
"We’ve been using the Amigo 7004 angular contact ball bearings in our robotic arms, and they perform just as well as the high-end brands like SKF or NSK. The precision and smoothness are on par with the best bearings on the market. What stands out for us is that we’re getting the same quality without paying the premium price. They handle high loads and operate flawlessly under continuous use. Overall, Amigo bearings are a great choice, offering both quality and affordability."
Emily R.
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