NNU 4152 M/W33 260x440x180 Bearing
Double Row Cylindrical Roller Bearings
The NNU 4152 M/W33 Double Row Cylindrical Roller Bearing is engineered for high radial load capacity and precision in demanding industrial applications. With a bore diameter of 260 mm, an outside diameter of 440 mm, and a width of 180 mm, this bearing offers outstanding durability and reliability under heavy loads. Its double-row configuration provides enhanced stiffness and load distribution, while the M/W33 design ensures efficient lubrication and reduced friction. Ideal for use in machinery such as rolling mills, crushers, and heavy-duty gearboxes, it is a robust, long-lasting alternative to other leading brands.
Performance Overview of the NNU 4152 M/W33 Bearings
| Category | Specification |
|---|---|
| Brand | AMIGO NNU 4152 M/W33 | Interchangeable With: SKF NNU 4152 M/W33 |
| Bore Diameter | 260 mm |
| Outside Diameter | 440 mm |
| Width | 180 mm |
| Bearing Part | Complete Bearing |
| Axial Displacement Capability | In Both Directions |
| Number of Rows | 2 |
| Locating Feature, Bearing Outer Ring | None |
| Bore Type | Cylindrical |
| Number of Flanges, Outer Ring | 3 |
| Number of Flanges, Inner Ring | 0 |
| Loose Flange | None |
| Radial Internal Clearance | CN |
| Tolerance Class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | With |
| Basic Dynamic Load Rating | 2200 kN |
| Basic Static Load Rating | 3900 kN |
| Reference Speed | 1300 r/min |
| Limiting Speed | 1600 r/min |
| Dimensions(mm) | 260x440x180 |
| Category | Specification |
|---|---|
| Brand | AMIGO NNU 4152 M/W33 | Interchangeable With: SKF NNU 4152 M/W33 |
| Bore Diameter | 10.236 in |
| Outside Diameter | 17.323 in |
| Width | 7.087 in |
| Bearing Part | Complete Bearing |
| Axial Displacement Capability | In Both Directions |
| Number of Rows | 2 |
| Locating Feature, Bearing Outer Ring | None |
| Bore Type | Cylindrical |
| Number of Flanges, Outer Ring | 3 |
| Number of Flanges, Inner Ring | 0 |
| Loose Flange | None |
| Radial Internal Clearance | CN |
| Tolerance Class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication Feature | With |
| Basic Dynamic Load Rating | 494,580 lbf |
| Basic Static Load Rating | 876,755 lbf |
| Reference Speed | 1,300 r/min |
| Limiting Speed | 1,600 r/min |
| Dimensions(in) | 10.236x17.323x7.087 |
Specifications Overview of the NNU 4152 M/W33 Bearings
| Category | Specification |
|---|---|
| Bore Diameter (d) | 260 mm |
| Outside Diameter (D) | 440 mm |
| Overall Bearing Width (B) | 180 mm |
| Shoulder Diameter Outer Ring (D1) | ≈ 387 mm |
| Raceway Diameter Inner Ring (F) | 306 mm |
| Width of Annular Groove (b) | 13.9 mm |
| Diameter Lubrication Hole (K) | 7.5 mm |
| Chamfer Dimension Outer Ring (r1,2) | min. 4 mm |
| Chamfer Dimension Inner Ring (r3,4) | min. 4 mm |
| Permissible Axial Displacement (s) | max. 5.1 mm |
| Abutment Diameter Spacer Sleeve (da) | min. 276 mm / max. 300 mm |
| Abutment Diameter Shaft (db) | min. 310 mm |
| Abutment Diameter Spacer Sleeve / Housing (Da) | max. 424 mm |
| Fillet Radius (ra) | max. 3 mm |
| Fillet Radius (rb) | max. 3 mm |
| Category | Specification |
|---|---|
| Bore Diameter (d) | 10.236 in |
| Outside Diameter (D) | 17.323 in |
| Overall Bearing Width (B) | 7.087 in |
| Shoulder Diameter Outer Ring (D1) | ≈ 15.236 in |
| Raceway Diameter Inner Ring (F) | 12.047 in |
| Width of Annular Groove (b) | 0.547 in |
| Diameter Lubrication Hole (K) | 0.295 in |
| Chamfer Dimension Outer Ring (r1,2) | min. 0.157 in |
| Chamfer Dimension Inner Ring (r3,4) | min. 0.157 in |
| Permissible Axial Displacement (s) | max. 0.201 in |
| Abutment Diameter Spacer Sleeve (da) | min. 10.866 in / max. 11.811 in |
| Abutment Diameter Shaft (db) | min. 12.205 in |
| Abutment Diameter Spacer Sleeve / Housing (Da) | max. 16.693 in |
| Fillet Radius (ra) | max. 0.118 in |
| Fillet Radius (rb) | max. 0.118 in |
Applicable Machines and Industries
The NNU 4152 M/W33 Double Row Cylindrical Roller Bearings are versatile components used in a variety of heavy-duty machinery where high radial load capacity is required. Below are the types of machines this bearing is suitable for, its function, and interchangeable brands or series.
Suitable Machines:
Heavy-duty Industrial Gearboxes
- Function: Provides support for heavy loads and reduces friction between moving parts in gear shafts, enabling smooth gear rotation and minimizing wear.
Wind Turbines
- Function: Supports the main shaft that transfers the rotational energy from the blades to the generator, ensuring reliability under varying loads and operating conditions.
Steel Mill Equipment
- Function: Helps in rolling mills where it handles high radial loads and high-speed operations in the shafts of rollers and other key components.
Mining Equipment
- Function: Used in the transmission systems of heavy mining machines, providing efficient load-bearing and long-lasting performance under tough conditions.
Cranes and Hoists
- Function: Enables smooth operation and supports load-bearing capacities of rotating parts in cranes, allowing for safe and efficient lifting and movement of materials.
Paper Mill Machinery
- Function: In paper mills, this bearing is used in calendar rollers to maintain consistent pressure and support during high-speed operation, ensuring smooth paper production.
Bearing Functions in these Machines:
- Support Heavy Radial Loads: Designed for applications with high radial loads and minimal axial load, allowing the machinery to operate smoothly under heavy loads.
- High Rotational Speed Capability: With its high-speed performance, it helps machinery run efficiently while minimizing wear and tear.
- Longevity and Durability: Ensures long-lasting performance even under harsh conditions, reducing maintenance needs.
Interchangeable Bearing Brands and Series:
SKF NNU 4152 M/W33
- Known for its precision and durability, offering excellent interchangeability with other leading brands.
FAG NNU 4152 M/W33
- Provides similar performance and reliability, commonly used in heavy-duty applications.
Timken NNU Series
- Offers equivalent cylindrical roller bearings designed for similar load and speed requirements, making it a good replacement option.
NSK NNU Series
- NSK’s NNU series can interchange with this model, providing smooth operations in similar machinery environments.
NTN NNU Series
- A well-known alternative that offers high load capacity and robust performance, matching NNU 4152 M/W33 specifications.
KOYO NNU Series
- Offers cylindrical roller bearings with similar dimensions and load capacities, ensuring compatibility.
By choosing Amigo NNU 4152 M/W33, users benefit from high precision, reliability, and cost-efficiency compared to other brands.
NNU 4152 M/W33 Bearing Cross Reference and Interchange
| Manufacturer | Bearing Model |
|---|---|
| SKF | NNU 4152 M/W33 |
| Amigo | NNU 4152 M/W33 |
This table compares the cross-reference and interchange guide for the NNU 4152 M/W33 Double Row Cylindrical Roller Bearings between SKF and Amigo brands.
Choosing the Right Bearing
To assist customers in making better purchasing decisions, the product comparison module for the NNU 4152 M/W33 Double Row Cylindrical Roller Bearings can be added to the webpage. The table below will provide a clear comparison between the Amigo NNU 4152 M/W33 and other similar models. It will highlight when and why users should choose Amigo NNU 4152 M/W33 over alternative bearings, emphasizing the specific advantages of our product.
When to Choose Amigo NNU 4152 M/W33 Double Row Cylindrical Roller Bearings:
- Cost-Effective: Amigo bearings offer superior performance at a competitive price point, making them an economical choice without compromising on quality.
- High Load Capacity: Like its competitors, Amigo NNU 4152 M/W33 offers a high dynamic and static load capacity, suitable for heavy-duty applications in industrial gearboxes, wind turbines, and steel mill equipment.
- Durability: Amigo bearings are designed to meet or exceed the durability standards of leading brands, ensuring long-lasting performance even under demanding conditions.
- Precision Manufacturing: Manufactured with precise machining, Amigo bearings provide smooth operation and reduced vibration, similar to well-known brands like SKF and FAG.
- Relubrication Capability: The presence of a relubrication feature allows for maintenance and extended bearing life, which is a significant advantage in applications requiring high operational reliability.
- Global Compatibility: Amigo NNU 4152 M/W33 bearings are fully compatible with other global bearing brands, ensuring easy interchangeability and replacement, particularly in industrial settings.
This comparison module helps clarify why Amigo NNU 4152 M/W33 Double Row Cylindrical Roller Bearings are a solid choice for various industrial applications, with clear advantages over other well-known brands.
| Feature / Specification | Amigo NNU 4152 M/W33 | SKF NNU 4152 M/W33 | FAG NNU 4152 M/W33 | Timken NNU Series |
|---|---|---|---|---|
| Bore Diameter (mm) | 260 | 260 | 260 | 260 |
| Outside Diameter (mm) | 440 | 440 | 440 | 440 |
| Width (mm) | 180 | 180 | 180 | 180 |
| Radial Internal Clearance | CN | CN | CN | CN |
| Basic Dynamic Load Rating (kN) | 2,200 | 2,200 | 2,200 | 2,200 |
| Basic Static Load Rating (kN) | 3,900 | 3,900 | 3,900 | 3,900 |
| Reference Speed (r/min) | 1,300 | 1,300 | 1,300 | 1,300 |
| Limiting Speed (r/min) | 1,600 | 1,600 | 1,600 | 1,600 |
| Relubrication Feature | With | With | With | With |
| Coating | Without | Without | Without | Without |
| Lubricant | None | None | None | None |
| Sealing | Without | Without | Without | Without |
| Tolerance Class | Normal | Normal | Normal | Normal |
| Cage Material | Machined Brass | Machined Brass | Machined Brass | Machined Brass |
Recommended Products for Optimal Performance
Enhance your bearing operations with these related products:
Why Amigo NNU 4152 M/W33 Bearings Are the Top Choice
"I’ve been using the Amigo NNU 4152 M/W33 bearings for about six months now, and they’ve performed exceptionally well. We previously used SKF bearings in our machines, and I have to say, the Amigo bearings deliver the same reliability and smooth operation. They’re built to withstand the heavy loads our equipment requires, and the performance is identical to the premium brands we’ve used in the past."
Saxon Leonard
"After switching from a well-known brand to Amigo NNU 4152 M/W33 Double Row Cylindrical Bearings, I was pleasantly surprised by the quality. These bearings offer comparable strength and durability to SKF, with no compromise in performance. We run heavy industrial machines, and the Amigo bearings have stood up to the test, keeping everything running smoothly without issue."
Augus Malthus
"I was skeptical at first about switching from SKF to Amigo NNU 4152 M/W33 bearings, but after installation, we noticed no difference in performance. The bearings are sturdy and handle the same heavy loads without overheating. Our machinery runs just as efficiently as before, and I would confidently recommend Amigo to anyone looking for a cost-effective alternative to more expensive brands."
Hedda Ralph
"We’ve used SKF bearings for years but decided to try Amigo NNU 4152 M/W33 as a more budget-friendly option. To our surprise, the bearings performed equally well, providing the same smoothness and stability. There has been no degradation in performance, and we’re definitely considering Amigo bearings for future projects."
Roberta Springhall
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