NU313 65x140x33 Bearing
Single Row Cylindrical Roller Bearing
The NU313 bearing features a single row of cylindrical rollers, which are guided by two integral flanges on the outer ring. The inner ring is free of flanges, allowing for axial displacement in one direction. This design minimizes friction and heat generation, even under heavy loads, ensuring smooth and efficient operation. The bearing’s inner and outer rings are precision-engineered from high-quality steel, providing excellent durability and resistance to wear and fatigue. The cage, typically made from machined brass or polyamide, ensures the correct positioning of the rollers, reducing vibration and noise during operation.
Performance Overview of the NU313 Bearings
| Category | Specification |
|---|---|
| Brand | AMIGO NU313 | Interchangeable With: SKF NU313 |
| Bore Diameter | 65 mm |
| Outside Diameter | 140 mm |
| Width | 33 mm |
| Basic Dynamic Load Rating | 212 kN |
| Basic Static Load Rating | 196 kN |
| Reference Speed | 5300 r/min |
| Limiting Speed | 6000 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 | 2.2 kg |
| Dimensions(mm) | 65x140x33 |
| Category | Specification |
|---|---|
| Brand | AMIGO NU313 | Interchangeable With: SKF NU313 |
| Bore Diameter | 2.559 in |
| Outside Diameter | 5.512 in |
| Width | 1.299 in |
| Basic Dynamic Load Rating | 47,659 lbf |
| Basic Static Load Rating | 44,063 lbf |
| Reference Speed | 5,300 r/min |
| Limiting Speed | 6,000 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 | 4.85 lb |
| Dimensions(mm) | 65x140x33 |
Specifications Overview of the NU313 Bearings
| Category | Specification |
|---|---|
| Bore Diameter | 65 mm |
| Outside Diameter | 140 mm |
| Width | 33 mm |
| Raceway Diameter of Inner Ring | 82.5 mm |
| Chamfer Dimension (min) | 2.1 mm |
| Permissible Axial Displacement (max) | 2.2 mm |
| Diameter of Spacer Sleeve (min) | 77 mm |
| Diameter of Spacer Sleeve (max) | 80 mm |
| Diameter of Shaft Abutment (min) | 85 mm |
| Diameter of Housing Abutment (max) | 127.8 mm |
| Radius of Fillet (max) | 2 mm |
| Category | Specification |
|---|---|
| Bore Diameter | 2.559 in |
| Outside Diameter | 5.512 in |
| Width | 1.299 in |
| Raceway Diameter of Inner Ring | 3.248 in |
| Chamfer Dimension (min) | 0.083 in |
| Permissible Axial Displacement (max) | 0.087 in |
| Diameter of Spacer Sleeve (min) | 3.031 in |
| Diameter of Spacer Sleeve (max) | 3.15 in |
| Diameter of Shaft Abutment (min) | 3.346 in |
| Diameter of Housing Abutment (max) | 5.031 in |
| Radius of Fillet (max) | 0.079 in |
Applicable Machines and Industries
NU313 single row cylindrical roller bearings are versatile components used in various industrial machines due to their ability to handle high radial loads and operate at high speeds. Here’s a breakdown of the machines they are suitable for, their roles in these machines, and the common brands associated with these applications:
1. Electric Motors
Role: In electric motors, NU313 bearings support the rotor, ensuring smooth rotation while managing radial loads. They help in maintaining alignment and reducing friction between moving parts.
Common Brands: Siemens, ABB, WEG
2. Gearboxes
Role: In gearboxes, NU313 bearings support the shafts, allowing them to rotate smoothly and transfer torque efficiently. They are crucial in reducing wear and prolonging the life of gears.
Common Brands: SEW-EURODRIVE, Bonfiglioli, Nord Drivesystems
3. Pumps
Role: In pumps, particularly centrifugal pumps, NU313 bearings support the pump shaft, ensuring stable rotation and efficient fluid movement. They handle the radial loads induced by the fluid pressure.
Common Brands: Grundfos, KSB, Sulzer
4. Conveyors
Role: NU313 bearings are used in conveyor systems to support rollers and other rotating parts. They ensure the smooth operation of conveyor belts, reducing downtime and increasing efficiency.
Common Brands: FlexLink, Bosch Rexroth, Dorner
5. Compressors
Role: In compressors, NU313 bearings support the compressor shaft, enabling smooth operation at high speeds and under varying pressure conditions. They help in minimizing friction and wear.
Common Brands: Atlas Copco, Ingersoll Rand, Kaeser
These applications highlight the versatility of NU313 bearings, making them essential components in industries ranging from energy to manufacturing. Their role in supporting rotating shafts and managing radial loads is crucial to the reliable and efficient operation of these machines.
NU313 Bearing Cross Reference and Interchange
| Manufacturer | Bearing Model |
|---|---|
| Amigo | NU313 |
| SKF | NU313ECP |
| FAG | NU313 E-TVP2 |
| NACHI | NU313E |
| NTN | NU313 |
The NU313 Single Row Cylindrical Roller Bearing is commonly used across various industrial applications due to its high radial load capacity and ability to operate at high speeds.
Choosing the Right Bearing
When selecting the appropriate bearing for your application, it’s crucial to compare different models to understand their strengths and suitability.
When to Choose NU313 Bearings
The NU313 bearing is particularly suitable for applications that require high radial load capacity and stable performance at high speeds. Typical machines that utilize NU313 bearings include:
- Electric Motors: Ensures smooth operation and high efficiency.
- Gearboxes: Provides reliable performance under heavy loads.
- Pumps: Ideal for high-speed operation with minimal friction.
- Industrial Machinery: Used in various heavy-duty applications due to its robustness.
Advantages of Amigo NU313 Bearings
Cost-Effective: Compared to premium brands like SKF and FAG, Amigo NU313 offers similar performance at a more affordable price, making it an excellent choice for budget-conscious buyers.
High Availability: Amigo bearings are widely available, ensuring quick delivery and minimal downtime for your operations.
Reliable Performance: Despite its competitive pricing, the Amigo NU313 bearing does not compromise on quality, delivering reliable and consistent performance across various applications.
Interchangeable: The Amigo NU313 bearing is fully interchangeable with other brands, ensuring flexibility in sourcing and replacement.
| Feature | Amigo NU313 | SKF NU313ECP | FAG NU313 E-TVP2 | NACHI NU313E | NTN NU313 |
|---|---|---|---|---|---|
| Radial Load Capacity | High | High | High | High | High |
| Dynamic Load Rating | 150 kN | 150 kN | 150 kN | 150 kN | 150 kN |
| Static Load Rating | 139 kN | 139 kN | 139 kN | 139 kN | 139 kN |
| Reference Speed | 5300 r/min | 5300 r/min | 5300 r/min | 5300 r/min | 5300 r/min |
| Limiting Speed | 6000 r/min | 6000 r/min | 6000 r/min | 6000 r/min | 6000 r/min |
| Price | Competitive | Premium | Premium | Mid-Range | Mid-Range |
| Availability | High | High | High | Moderate | Moderate |
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Why Amigo NU313 Bearings Are the Top Choice
"We have been using Amigo NU313 bearings for several months now with excellent results. Although we have been using SKF bearings before, we find that Amigo bearings are almost indistinguishable in terms of performance and durability. It is very stable under high load and high speed conditions and is highly recommended."
Darrell Thiel
"I am very impressed with the Amigo NU313 bearings. We chose Amigo when replacing the bearings on our equipment. Compared with other brands such as NSK and SKF, this bearing is much smoother to install and runs very smoothly. It is comparable to the big brands and the price is more reasonable."
Davonte
"After using the Amigo NU313 bearings, I must say that the quality and performance have fully met my expectations. We originally used FAG bearings, but this Amigo product has been equally reliable after long-term use. Highly recommended to anyone who needs high-performance bearings."
Makayla Windler
"Amigo The NU313 bearing is almost the same as the SKF bearing, except that it is more affordable. We have used this bearing in many projects and found it to be able to maintain stable operation under heavy load conditions. It is not only easy to install, but also runs very quietly. We are very satisfied with this choice. "
Noemy Wiza
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