NU306 30x72x19 Bearing
Single Row Cylindrical Roller Bearing
The NU306 Single Row Cylindrical Roller Bearing is a versatile and durable component widely used in various industrial applications. Known for its exceptional load-carrying capacity, this bearing is designed to handle both radial loads and moderate axial loads in one direction, making it an ideal choice for high-performance machinery and equipment.
Performance Overview of the NU306 Bearings
| Category | Specification |
|---|---|
| Brand | AMIGO NU306 | Interchangeable With: SKF NU306 |
| Bore diameter | 30 mm |
| Outside diameter | 72 mm |
| Width | 19 mm |
| Basic dynamic load rating | 58.5 kN |
| Basic static load rating | 48 kN |
| Reference speed | 11,000 r/min |
| Limiting speed | 12,000 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In both directions |
| 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 | 0 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 0.364 kg |
| Dimensions(mm) | 30x72x19 |
| Category | Specification |
|---|---|
| Brand | AMIGO NU306 | Interchangeable With: SKF NU306 |
| Bore diameter | 1.181 in |
| Outside diameter | 2.835 in |
| Width | 0.748 in |
| Basic dynamic load rating | 13,151 lbf |
| Basic static load rating | 10,791 lbf |
| Reference speed | 11,000 r/min |
| Limiting speed | 12,000 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In both directions |
| 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 | 0 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 0.8025 lb |
| Dimensions(mm) | 30x72x19 |
Specifications Overview of the NU306 Bearings
| Dimension | Specification |
|---|---|
| Bore diameter | 30 mm |
| Outside diameter | 72 mm |
| Width | 19 mm |
| Raceway diameter of inner ring | 40.5 mm |
| Chamfer dimension (r?,?) | min. 1.1 mm |
| Chamfer dimension (r?,?) | min. 1.1 mm |
| Permissible axial displacement | max. 1.4 mm |
| Diameter of spacer sleeve (d?) | min. 37 mm / max. 39 mm |
| Diameter of shaft abutment (d?) | min. 43 mm |
| Diameter of housing abutment (D?) | max. 65.1 mm |
| Radius of fillet (r?) | max. 1 mm |
| Radius of fillet (r?) | max. 1 mm |
| Dimension | Specification |
|---|---|
| Bore diameter | 1.181 in |
| Outside diameter | 2.835 in |
| Width | 0.748 in |
| Raceway diameter of inner ring | 1.594 in |
| Chamfer dimension (r?,?) | min. 0.043 in |
| Chamfer dimension (r?,?) | min. 0.043 in |
| Permissible axial displacement | max. 0.055 in |
| Diameter of spacer sleeve (d?) | min. 1.457 in / max. 1.535 in |
| Diameter of shaft abutment (d?) | min. 1.693 in |
| Diameter of housing abutment (D?) | max. 2.563 in |
| Radius of fillet (r?) | max. 0.039 in |
| Radius of fillet (r?) | max. 0.039 in |
Applicable Machines and Industries
The NU306 Single Row Cylindrical Roller Bearing is used in various industrial applications due to its ability to handle high radial loads and its robust design. Here’s a breakdown of the types of machines that commonly use the NU306 bearing, the role it plays in these machines, and the common brands of these machines:
1. Electric Motors
- Role: The NU306 bearing supports the motor shaft, enabling smooth rotation while minimizing friction. It helps maintain the alignment of the shaft and supports the radial load generated by the rotating components.
- Common Brands: Siemens, ABB, General Electric, Toshiba.
2. Gearboxes
- Role: In gearboxes, the NU306 bearing supports the gears and shafts, ensuring the efficient transmission of power by reducing friction and wear between moving parts.
- Common Brands: SEW-EURODRIVE, Bonfiglioli, NORD, Sumitomo.
3. Pumps
- Role: The bearing supports the pump shafts and allows for smooth rotation, crucial for maintaining the efficiency and longevity of the pump. It handles the radial forces generated by the impeller’s rotation.
- Common Brands: Grundfos, Sulzer, KSB, Wilo.
4. Conveyor Systems
- Role: In conveyor systems, the NU306 bearing supports the rollers or pulley shafts, facilitating smooth and reliable movement of the conveyor belts. It is essential for reducing friction and handling the heavy loads transferred by the system.
- Common Brands: Bosch Rexroth, FlexLink, Dematic, Interroll.
5. Industrial Fans
- Role: The bearing supports the fan shaft and rotor, ensuring balanced rotation and reducing vibration. It also helps in minimizing energy loss due to friction.
- Common Brands: Greenheck, Systemair, FläktGroup, Howden.
6. Textile Machinery
- Role: In textile machinery, the NU306 bearing supports various rotating components such as rollers and spindles, ensuring precise movement and reduced wear, which is crucial for maintaining product quality.
- Common Brands: Rieter, Saurer, Murata Machinery, Toyota Industries.
The NU306 Single Row Cylindrical Roller Bearing is essential in supporting shafts and reducing friction in various heavy-duty industrial machines.Â
NU306 Bearing Cross Reference and Interchange
| Manufacturer | Part Number |
|---|---|
| Amigo | NU306 |
| SKF | NU306 ECM |
| FAG | NU306-E-XL-TVP2 |
| KOYO | NU306R |
| NTN | NU306ET2X |
| NSK | NU306EM |
Due to its standard dimensions and performance characteristics, it can be interchanged with equivalent models from different manufacturers.
Choosing the Right Bearing
Choosing the Amigo NU306 bearing ensures you get the best combination of performance, durability, and value, making it the preferred choice for industrial applications that demand reliability and efficiency.
Explanation: When to Choose NU306 Bearings
Choosing the right bearing for your machinery is crucial for optimizing performance and longevity. The NU306 bearing is specifically designed for applications that require high radial load capacity and reliable high-speed performance. Here’s when you should consider choosing the Amigo NU306 bearing:
High Radial Load: If your machinery is subjected to significant radial loads, the Amigo NU306 bearing provides superior load-bearing capacity, making it ideal for heavy-duty applications.
Low Friction Requirements: For applications where reducing friction and minimizing wear is critical, the precision-engineered Amigo NU306 offers lower friction compared to many other models, ensuring smooth and efficient operation.
Temperature Stability: The Amigo NU306 can operate effectively in a wide range of temperatures, from -20°C to 120°C, making it suitable for both low and high-temperature environments.
Cost-Effectiveness: Amigo NU306 bearings offer a competitive price point without compromising on quality, making them an excellent choice for businesses looking for cost-effective solutions without sacrificing performance.
| Feature | Amigo NU306 | SKF NU306 ECM | FAG NU306-E-XL-TVP2 | KOYO NU306R | NTN NU306ET2X | NSK NU306EM |
|---|---|---|---|---|---|---|
| Radial Load Capacity | High | High | High | Medium-High | High | High |
| Speed Limit | 9300 tr/min | 9300 tr/min | 9300 tr/min | 9100 tr/min | 9000 tr/min | 9200 tr/min |
| Friction Level | Low | Low | Low | Medium | Low | Low |
| Material Quality | Premium Steel | High-Quality Steel | High-Quality Steel | Standard Steel | High-Quality Steel | High-Quality Steel |
| Interchangeability | Yes | Yes | Yes | Yes | Yes | Yes |
| Price | Competitive | Premium | Premium | Budget-Friendly | Mid-Range | Premium |
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Why Amigo NU306 Bearings Are the Top Choice
"I recently installed the Amigo NU306 bearing in our industrial equipment, and I must say, the performance is outstanding. The bearing is robust and durable, handling high loads with ease. We've used SKF bearings in the past, and honestly, the Amigo NU306 feels just as good, if not better. The smooth operation and reduced noise levels were immediately noticeable. Highly recommend it to anyone looking for a reliable bearing!"
Cedrick Dooley
"Our factory switched to the Amigo NU306 bearings for our conveyor systems, and the results have been impressive. The bearing runs smoothly, with minimal friction, just like the SKF bearings we were using before. The installation was straightforward, and the bearing's build quality is top-notch. It's a cost-effective alternative without compromising on quality. We're very satisfied with the performance."
Diana Will
"We've been testing the Amigo NU306 bearings in our heavy machinery, and they have performed remarkably well. These bearings provide the same reliability and smoothness that we've come to expect from SKF products. The longevity and durability are on par with other premium brands, making Amigo a great choice for anyone needing high-quality bearings. We'll definitely be ordering more."
Eliane Gleason
"The Amigo NU306 bearings have been an excellent addition to our equipment. They have a similar feel and performance to SKF bearings, which we've relied on for years. The Amigo bearings were easy to install, and we've noticed improved efficiency and reduced downtime since switching. It's a reliable and cost-effective option that I would recommend to any business."
Jon Rath
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