Quick Summary:

Price:$57,199.70
SKU: 5049068

Pros:

High Load Capacity: Designed to handle significant radial and axial loads, making it ideal for heavy-duty applications.
Misalignment Tolerance: Self-aligning spherical rollers accommodate shaft deflections and mounting errors, ensuring smooth operation.
Durable Construction: Made from high-quality steel, providing durability and resistance to wear and tear.
Wide Application Range: Suitable for diverse industries including mining, steel manufacturing, pulp and paper, and marine applications.
Long Service Life: Engineered for extended lifespan under challenging industrial conditions.

Cons:

High Initial Cost: The initial investment for the NTN 239/670L1W33 bearing may be higher compared to standard bearings due to its size and capabilities.
Heavy Weight: Weighing approximately 698 lbs (317 kg), handling and installation may require additional effort and equipment.

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NTN 239/670L1W33 Large Size Bearings: An In-Depth Review

Bearings are essential components in machinery, facilitating smooth operation by minimizing friction between moving parts. Among the various types of bearings, spherical roller bearings are particularly notable for their capacity to handle substantial loads efficiently. The NTN 239/670L1W33 Bearing is a prime example of such a bearing, specifically engineered for large-scale industrial applications.

Overview of NTN Corporation

Since its inception in 1918, NTN Corporation has grown into a global leader in bearing manufacturing. Known for its commitment to innovation and quality, NTN serves a diverse range of sectors, including automotive, aerospace, and heavy industries. The company's relentless focus on research and development ensures that it remains at the cutting edge of bearing technology.

Key Specifications of NTN 239/670L1W33

The NTN 239/670L1W33 is an extra-large spherical roller bearing renowned for its robustness and high load capacity. Here are its key specifications:

Model Number: 239/670L1W33
Brand: NTN
Weight: 698 lbs (317 kg)
Outer Diameter: 900 mm
Inner Diameter: 670 mm
Width: 167 mm
Cage Material: Steel
Radial Clearance: C3 (extra clearance)

Design and Features of NTN 239/670L1W33

Designed for durability and superior performance, the NTN 239/670L1W33 offers several advanced features:

High Load Capacity

The double-row spherical rollers are designed to manage significant radial and axial loads effectively. This capacity makes the bearing ideal for heavy-duty industrial applications.

Enhanced Performance

The internal design of the bearing minimizes friction and heat generation, ensuring optimal efficiency and an extended lifespan. This design feature is crucial for applications requiring consistent and reliable performance.

Misalignment Tolerance

The self-aligning spherical rollers can accommodate shaft deflections and mounting errors, providing flexibility and reducing the risk of operational issues.

Advanced Material

Constructed from high-quality steel, the NTN 239/670L1W33 offers excellent durability and resistance to wear, even under challenging operating conditions.

Applications of NTN 239/670L1W33

Due to its size and load-bearing capabilities, the NTN 239/670L1W33 is well-suited for several demanding industrial environments:

Mining and Quarrying

The bearing is ideal for heavy machinery subjected to harsh conditions and heavy loads, such as in mining and quarrying operations.

Steel Manufacturing

In steel mills and casting machines, where equipment operates under extreme pressures, the NTN 239/670L1W33 is an essential component.

Pulp and Paper Industry

High-speed paper machines require reliable and efficient bearings, making the NTN 239/670L1W33 a suitable choice for the pulp and paper industry.

Marine Applications

The bearing's reliability and durability make it ideal for ship propulsion systems, where consistent performance is critical.

Installation and Maintenance of NTN 239/670L1W33

Proper installation and maintenance are crucial for maximizing the performance and lifespan of the NTN 239/670L1W33:

Installation

Using precise mounting techniques is essential to prevent misalignment and ensure longevity. Proper installation tools and methods are critical to achieving optimal performance.

Lubrication

Regular lubrication with recommended products helps reduce friction and wear, contributing to the bearing's extended operational life.

Inspection

Periodic checks for unusual noise or temperature changes can help detect potential issues early. Regular inspections ensure that the bearing continues to perform at its best.

Replacement

Timely replacement of worn bearings is necessary to avoid equipment downtime and maintain efficiency. Proactive maintenance practices can prevent costly disruptions.

Pros and Cons of NTN 239/670L1W33

Pros

High Load Capacity: Capable of handling significant radial and axial loads.
Durable Construction: Made from high-quality steel, ensuring long-lasting performance.
Misalignment Tolerance: Self-aligning spherical rollers accommodate shaft deflections.
Efficient Performance: Minimal friction and heat generation for optimal efficiency.
Versatile Applications: Suitable for various demanding industrial environments.

Cons

Heavy Weight: At 698 lbs, handling and installation require specialized equipment and expertise.
Maintenance Requirements: Regular lubrication and inspection are necessary to maintain optimal performance.

Frequently Asked Questions about NTN 239/670L1W33 Large Size Bearings

What are the dimensions of the NTN 239/670L1W33 bearing?

Outer Diameter: 900 mm
Inner Diameter: 670 mm
Width: 167 mm

What is the weight of this bearing?

Approximately 698 lbs (317 kg).

What materials are used in this bearing?

It features a steel cage with high-quality steel rollers and raceways.

What type of loads can this bearing handle?

It can manage significant radial loads and moderate axial loads in both directions.

What industries commonly use this bearing?

Mining, steel manufacturing, pulp and paper, and marine applications.

What is the radial clearance of the NTN 239/670L1W33?

It has a C3 radial clearance, providing extra space.

How should the bearing be installed?

Use proper tools and techniques to avoid misalignment and damage.

What maintenance is required for this bearing?

Regular lubrication and periodic inspections ensure optimal performance.

Can this bearing accommodate misalignment?

Yes, its self-aligning spherical rollers can handle shaft misalignments effectively.

Conclusion

The NTN 239/670L1W33 X-Large Spherical Roller Bearing stands out as a robust solution for industrial applications requiring high load capacity and reliability. Its durable construction and ability to handle misalignment make it indispensable in various heavy-duty settings. By adhering to proper installation and maintenance practices, users can ensure prolonged operational efficiency and performance. Whether in mining, steel manufacturing, pulp and paper, or marine applications, the NTN 239/670L1W33 delivers exceptional performance and reliability.

NTN 239/670L1W33 Large Size Bearings X-Large Spherical Roller Bearing Review 5049068