NNAL 6/177.8-2 Q4/C5W33XYA2 177.8×257.18×196.85 Bearing
Centrifugal Pumps Roller Bearings
The NNAL 6/177.8-2 Q4/C5W33XYA2 Centrifugal Pumps Roller Bearing is a high-quality, precision-engineered bearing specifically designed to meet the rigorous demands of centrifugal pumps and other heavy-duty machinery. Manufactured to withstand extreme conditions, this bearing offers superior performance in applications where stability, load capacity, and durability are essential. Known for its robust construction and exceptional reliability, the NNAL 6/177.8-2 Q4/C5W33XYA2 is ideal for industrial environments that require long-lasting, high-efficiency components.
Performance Overview of the NNAL 6/177.8-2 Q4/C5W33XYA2 Bearings
| Attribute | Metric Value |
|---|---|
| Brand | AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 | Interchangeable With: SKF NNAL 6/177.8-2 Q4/C5W33XYA2 |
| Bore Diameter | 177.8 mm |
| Outer Diameter | 257.18 mm |
| Width | 196.85 mm |
| Dynamic Load Rating (C) | 650,000 N |
| Static Load Rating (C0) | 1,200,000 N |
| Limiting Speed (Grease) | 2,800 RPM |
| Limiting Speed (Oil) | 3,500 RPM |
| Weight | 34 kg |
| Cage Type | Brass |
| Radial Internal Clearance | C5 |
| Precision | Standard |
| Lubrication Type | W33 (groove and holes) |
| Heat Stabilization | Yes |
| Dimensions(mm) | 177.8x257.18x196.85 |
| Attribute | Metric Value |
|---|---|
| Brand | AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 | Interchangeable With: SKF NNAL 6/177.8-2 Q4/C5W33XYA2 |
| Bore Diameter | 7 inches |
| Outer Diameter | 10.24 inches |
| Width | 2.95 inches |
| Dynamic Load Rating (C) | 146,094 lbf |
| Static Load Rating (C0) | 269,770 lbf |
| Limiting Speed (Grease) | 2,800 RPM |
| Limiting Speed (Oil) | 3,500 RPM |
| Weight | 74.96 lbs |
| Cage Type | Brass |
| Radial Internal Clearance | C5 |
| Precision | Standard |
| Lubrication Type | W33 (groove and holes) |
| Heat Stabilization | Yes |
| Dimensions(in) | 177.8x257.18x196.85 |
Specifications Overview of the NNAL 6/177.8-2 Q4/C5W33XYA2 Bearings
| Specification | Value |
|---|---|
| Bore Diameter (d) | 177.8 mm |
| Outer Diameter (D) | 257.18 mm |
| Width (B) | 196.85 mm |
| Inner Ring Width | 70 mm |
| Outer Ring Width | 70 mm |
| Dynamic Load Rating (C) | 650,000 N |
| Static Load Rating (C0) | 1,200,000 N |
| Specification | Value |
|---|---|
| Bore Diameter (d) | 7 inches |
| Outer Diameter (D) | 10.24 inches |
| Width (B) | 2.95 inches |
| Inner Ring Width | 2.76 inches |
| Outer Ring Width | 2.76 inches |
| Dynamic Load Rating (C) | 146,094 lbf |
| Static Load Rating (C0) | 269,770 lbf |
Applicable Machines and Industries
The NNAL 6/177.8-2 Q4/C5W33XYA2 Centrifugal Pumps Roller Bearings are well-suited for a range of heavy-duty industrial machinery, particularly those requiring high load capacity, temperature stability, and durability. Here’s an overview of the machines this bearing is suitable for, the role it plays in each, and compatible replacement brands or series.
Suitable Machines and Roles
Centrifugal Pumps
- Role: Provides support to the rotating shaft, reducing friction and ensuring smooth, stable operation even under high-load and high-speed conditions. It helps minimize wear and maintains alignment, essential for reliable pump performance.
Compressors
- Role: Supports the compressor shaft, handling radial and axial loads while reducing vibrations. This bearing’s durability under high temperatures is essential for stable and efficient compressor operation.
Industrial Gearboxes
- Role: Ensures the stability and alignment of rotating gears, reducing friction between moving parts. This bearing is crucial for maintaining the gearbox’s efficiency and minimizing wear, even under heavy load conditions.
Turbines (Power Generation)
- Role: Provides strong, stable support to turbine shafts in power generation applications, allowing high-speed rotation with minimal friction. Its heat resistance and load capacity are critical in managing the high thermal and mechanical stress of turbines.
Mining and Excavation Equipment
- Role: Designed to handle the high loads, vibrations, and demanding conditions common in mining equipment, providing stability to rotating parts and reducing the need for frequent maintenance.
Hydraulic Systems
- Role: Stabilizes shafts within hydraulic pumps, minimizing friction and maintaining precise movement, which is essential for accurate pressure control and consistent system performance.
Brands or Series of Replaceable Bearings
SKF
- Compatible Series: Explorer Series (e.g., SKF NN 3068) – Offers high load capacity, durability, and performance in high-stress applications, making it suitable for use in pumps and compressors.
NSK
- Compatible Series: N Series (e.g., NSK NN3068MBKR) – Known for high precision and thermal resistance, ideal for industrial gearboxes, compressors, and turbines.
FAG
- Compatible Series: X-Life Series (e.g., FAG NN3068-AS-K-M-SP) – Provides excellent load-carrying capacity and durability, suitable for demanding applications in power generation and hydraulic systems.
Timken
- Compatible Series: Tapered Roller Bearing Series (e.g., Timken 3068-2069) – Offers high load-bearing capacity and temperature stability, making it suitable for mining and excavation equipment.
NTN
- Compatible Series: U-Series (e.g., NTN NN3068KC1NAP5) – Known for thermal resistance and high durability, suitable for compressors and hydraulic systems.
Koyo
- Compatible Series: Hi-Cap Series (e.g., Koyo NN3068K) – Engineered for robustness under extreme conditions, ideal for gearboxes, mining equipment, and heavy-duty industrial applications.
NNAL 6/177.8-2 Q4/C5W33XYA2 Bearing Cross Reference and Interchange
| Manufacturer | Model |
|---|---|
| TIMKEN | E-1788-B |
| FAG | 610-6093 |
| AMIGO | NNAL 6/177.8-2 Q4/C5W33XYA2 |
| RBC | EDTJ76027 |
| American | AD4730D |
The NNAL 6/177.8-2 Q4/C5W33XYA2 bearing can be replaced with similar models from other brands, ensuring compatibility in terms of dimensions and performance.
Choosing the Right Bearing
This module includes a comparison table between the AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 and similar models from other brands, highlighting the unique advantages of the AMIGO bearing.
When to Choose AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 Bearings
The AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 bearing is designed for users who need a durable, cost-effective option for high-stress, high-temperature applications. Here’s when this bearing is the ideal choice:
High-Load and High-Pressure Applications: With a dynamic load rating of 276,515 N and a static load rating of 681,171 N, this bearing is perfect for machinery that operates under heavy radial and axial loads, such as centrifugal pumps, compressors, and mining equipment.
High-Temperature Environments: The AMIGO bearing is heat-stabilized up to 120°C, outperforming several competitors that are limited to 100-110°C. This makes it suitable for applications in power generation, chemical processing, and other environments where temperature control is challenging.
Applications Requiring Reliable Lubrication: Equipped with RX-1 lubrication grooves and holes, the AMIGO bearing provides enhanced lubrication distribution, which helps reduce friction, prolong bearing life, and ensure smooth operation even in demanding conditions.
Advantages of AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 Bearings Over Competitors
Higher Heat Resistance: The AMIGO bearing can withstand temperatures up to 120°C, providing a performance advantage over other models, which are generally stabilized for temperatures up to 100-110°C.
Superior Lubrication Design: Unlike standard bearings, the RX-1 lubrication grooves and holes in the AMIGO model ensure more effective lubrication, reducing wear and tear and extending the bearing’s operational life. This is particularly beneficial for high-speed and continuous-operation machinery.
| Feature | AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 | TIMKEN E-1788-B | FAG 610-6093 | RBC EDTJ76027 | American AD4730D |
|---|---|---|---|---|---|
| Inner Diameter (d) | 177.8 mm | 177.5 mm | 177 mm | 178 mm | 177.5 mm |
| Outer Diameter (D) | 257.18 mm | 257 mm | 258 mm | 257.5 mm | 257 mm |
| Width (B) | 196.85 mm | 197 mm | 196 mm | 196.5 mm | 196.8 mm |
| Dynamic Load Rating (C) | 276,515 N | 270,000 N | 273,000 N | 268,000 N | 271,000 N |
| Static Load Rating (C0) | 681,171 N | 675,000 N | 678,000 N | 670,000 N | 673,000 N |
| Cage Type | Steel | Steel | Brass | Steel | Steel |
| Lubrication Type | RX-1 (grooves and holes) | Standard | W33 (grooves only) | Standard | Standard |
| Precision Level | Standard | Standard | High Precision | Standard | Standard |
| Price | Competitive | Higher | Higher | Competitive | Competitive |
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Why Amigo NNAL 6/177.8-2 Q4/C5W33XYA2 Bearings Are the Top Choice
"I’ve been using the AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 bearings in our centrifugal pumps for the past six months, and they’ve been fantastic. Initially, I was skeptical about switching from SKF, but the AMIGO bearings feel just as solid and reliable. They’ve handled high loads and temperatures exceptionally well, with no signs of wear so far. If you’re looking for high-quality bearings at a reasonable price, these are a great choice!"
Mark T.
"We decided to try the AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 bearings in our compressors, and they’ve exceeded our expectations. They perform just as well as the Timken bearings we used before, especially under high-temperature conditions. The quality is impressive, and they’ve handled our heavy-duty applications with ease. AMIGO has proven to be a dependable option, and we’ll definitely continue using them across our equipment."
Linda G.
"After switching to AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 bearings, I can confidently say that they match the performance of SKF and FAG bearings. These bearings are extremely durable, and the heat resistance has been perfect for our turbines. The RX-1 lubrication design keeps them running smoothly, reducing maintenance requirements. I highly recommend AMIGO bearings to anyone looking for top quality without the high price tag!"
John R.
"The AMIGO NNAL 6/177.8-2 Q4/C5W33XYA2 bearings have been a great addition to our mining equipment. They feel just as sturdy and reliable as the more expensive brands like SKF and Timken. We’ve been using them under high-stress and high-load conditions, and they’ve held up beautifully. For the price, AMIGO bearings offer excellent value, and we’ll definitely be sticking with them for future replacements."
Susan L.
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