Product Description
CZPT is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball slewing ring bearings, roller slewing bearings and precision slewing ring bearings as per customer’s different technical requirements.
Slewing ring bearing is also called slewing ring, slewing bearing, turntable bearing, and rotary bearing.
Slewing ring bearing is a bearing that CZPT to bear axial load, radial load and overturning torque. Under normal circumstances, slewing ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions;
On the other hand, slewing ring bearing itself has characteristics of compact structure, CZPT rotating convenient, easy to install and maintaining easily.
Slewing Ring Bearings——Types:
1. 4 point contact ball slewing ring bearings
2. double row ball 4 point contact slewing ring bearings(same diameter ball; different diameter ball)
3. cross roller slewing ring bearings
4. triple row cylindrical roller combined slewing ring bearings
5. ball roller combined slewing ring bearings
6. light flanged slewing ring bearings
Slewing Ring Bearings——Technical Data:
1. Material: 42CrMo, 50Mn
2. Precision: P0. P6. P5.
3. Outside diameter: 200~9500mm
4. Cage/retainer: Nylon or aluminum
5. Gear type: non-geared, internal gear and external gear, gear hardened
Slewing Ring Bearings——Applications:
Slewing ring bearings are widely used in industry and known as “the machine joints”
Hereunder is the specific slewing bearing applications
1. Construction machinery (e.g. cranes, excavators, loader, scraper)
2. Metallurgical machinery (e.g. for steel plant)
3. Heavy machinery equipments (e.g. mining machinery, concrete machinery)
4. Marine machinery equipment (e.g. vessel, port hoisting machine, port oil transfer equipment, onshore and offshore crane)
5. Light machinery equipments (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Military products (e.g. aerospace machinery)
8. Packing machinery
Slewing Ring Bearings——Packaging Details:
Step 1: Covered with the anti-rust oil
Step 2: wrapped with the plastic film;
Step 3: Packed with Kraft paper and professional belts;
Step 4: Put into wooden box to avoid the rust or the moist;
Remark: Normally, plastic film+ Kraft +belt+ wooden box, but customized packing available,
Our Advantages:
1. Good quality and competitive price
2. Trial order accepted
3. ISO certified company
4. OEM and ODM accepted
5. Manufacturing slewing ring bearings since 2000
LYHY Slewing bearing models:
| Triple Row Roller Slewing Bearing–Bearing with external gear | ||
| 191.20.1250.990.41.1502 | 191.20.1400.990.41.1502 | 191.20.1600.990.41.1502 |
| 191.20.1800.990.41.1502 | 191.20.2000.990.41.1502 | 191.25.1800.990.41.1502 |
| 191.25.2000.990.41.1502 | 191.25.2240.990.41.1502 | 191.25.2500.990.41.1502 |
| 191.25.2800.990.41.1502 | 191.32.2240.990.41.1502 | 191.32.2500.990.41.1502 |
| 191.32.2800.990.41.1502 | 191.32.3150.990.41.1502 | 191.32.3550.990.41.1502 |
| 191.32.4000.990.41.1502 | 191.40.2800.990.41.1502 | 191.40.3150.990.41.1502 |
| 191.40.3550.990.41.1502 | 191.40.4000.990.41.1502 | 191.40.4500.990.41.1502 |
| 191.50.3150.990.41.1502 | 191.50.3550.990.41.1502 | 191.50.4000.990.41.1502 |
| 191.50.4500.990.41.1502 | 191.50.5000.990.41.1502 | 191.50.5600.990.41.1502 |
| 191.50.6300.990.41.1502 | ||
| Triple Row Roller Slewing Bearing–Bearing with internal gear | ||
| 192.20.1250.990.41.1502 | 192.20.1400.990.41.1502 | 192.20.1600.990.41.1502 |
| 192.20.1800.990.41.1502 | 192.20.2000.990.41.1502 | 192.25.1800.990.41.1502 |
| 192.25.2000.990.41.1502 | 192.25.2240.990.41.1502 | 192.25.2500.990.41.1502 |
| 192.25.2800.990.41.1502 | 192.32.2240.990.41.1502 | 192.32.2500.990.41.1502 |
| 192.32.2800.990.41.1502 | 192.32.3150.990.41.1502 | 192.32.3550.990.41.1502 |
| 192.32.4000.990.41.1502 | 192.40.2800.990.41.1502 | 192.40.3150.990.41.1502 |
| 192.40.3550.990.41.1502 | 192.40.4000.990.41.1502 | 192.40.4500.990.41.1502 |
| 192.50.3150.990.41.1502 | 192.50.3550.990.41.1502 | 192.50.4000.990.41.1502 |
| 192.50.4500.990.41.1502 | 192.50.5000.990.41.1502 | 192.50.5600.990.41.1502 |
| 192.50.6300.990.41.1502 | 192.50.6735.990.41.1502 | |
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| Standard or Nonstandard: | Standard |
|---|---|
| Feature: | Cold-Resistant, Corrosion-Resistant, Heat-Resistant |
| Sealing Gland: | Sealed On One Side |
| Rolling-Element Number: | Double-Row |
| Roller Type: | Deep Groove Raceway |
| Material: | 50mn 42CrMo |
| Samples: |
US$ 1200/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What Role do Seals and Enclosures Play in Protecting Slewing Bearings from Contaminants?
Seals and enclosures play a crucial role in safeguarding slewing bearings from contaminants, moisture, and other external factors that can lead to premature wear and damage. Here’s how seals and enclosures contribute to the protection of slewing bearings:
- Contaminant Exclusion:
Seals and enclosures create a physical barrier that prevents contaminants like dust, dirt, sand, and particles from entering the bearing’s internal components. This exclusion minimizes abrasive wear and preserves the integrity of the rolling elements and raceways.
- Moisture and Corrosion Prevention:
Seals and enclosures provide a shield against moisture and water ingress, crucial in preventing corrosion and rust formation on bearing surfaces. Corrosion-resistant seals are particularly valuable in marine and humid environments.
- Chemical and Chemical Vapor Resistance:
Specialized seals and enclosures can offer resistance to chemicals, acids, and corrosive substances that might be present in the operating environment. This protection prevents chemical damage to the bearing’s components.
- Lubrication Retention:
Seals and enclosures help retain the lubricant within the bearing, preventing it from leaking out and ensuring consistent lubrication for smooth operation. This is essential for reducing friction and wear.
- Prevention of Solid Particle Contamination:
Seals and enclosures block solid particles from entering the bearing chamber, reducing the risk of particle-induced wear, surface damage, and premature failure.
- Temperature Regulation:
Some seals and enclosures offer thermal insulation, which helps regulate the operating temperature of the bearing. This can be crucial in applications with extreme temperature variations.
- Enhanced Longevity:
By protecting the bearing from contaminants and adverse environmental conditions, seals and enclosures contribute to the extension of the bearing’s operational life, reducing the need for frequent replacements.
- Sealing Types:
Seals can come in various types, including lip seals, labyrinth seals, and specialized designs. The choice of seal depends on the application’s requirements and the level of protection needed.
- Proper Installation and Maintenance:
Proper installation and regular inspection of seals and enclosures are essential to ensure their effectiveness. Damaged or worn seals should be promptly replaced to maintain protection.
In summary, seals and enclosures serve as a critical defense mechanism for slewing bearings against contaminants, moisture, and harmful substances. They contribute to the bearing’s reliability, performance, and overall longevity in various operating environments.
What are the Signs of a Damaged or Worn-out Slewing Bearing that Requires Replacement?
Identifying the signs of a damaged or worn-out slewing bearing is essential for preventing potential failures and ensuring equipment reliability. Here are common indicators that a slewing bearing may require replacement:
- Unusual Noise:
If you notice grinding, clicking, or any abnormal noises during operation, it could be a sign of wear or misalignment in the slewing bearing.
- Increased Vibration:
Excessive vibration or shaking during rotation could indicate misalignment, damage, or uneven wear in the slewing bearing.
- Irregular Movement:
If the machinery exhibits irregular or jerky movement instead of smooth rotation, it might be due to a damaged slewing bearing.
- Uneven Load Distribution:
Uneven distribution of loads can lead to accelerated wear on specific sections of the bearing, causing premature failure.
- Abnormal Heat Generation:
If the slewing bearing becomes excessively hot during operation, it may suggest friction, misalignment, or lack of proper lubrication.
- Excessive Play or Clearance:
Too much axial or radial play in the bearing can indicate wear, misalignment, or component fatigue, requiring inspection and potential replacement.
- Leakage of Lubricant:
If lubricant leaks from the bearing or seals, it may signify damage to the sealing mechanism or an internal issue that needs attention.
- Visible Wear or Damage:
Inspect the bearing for visible signs of wear, corrosion, pitting, or other forms of damage. Cracks, dents, or deformation are clear indicators of potential problems.
- Reduced Performance:
If the machinery’s performance deteriorates, such as decreased rotation speed, reduced load capacity, or increased power consumption, it could be due to a failing slewing bearing.
- Increased Maintenance Frequency:
If you find yourself needing to perform more frequent maintenance or repairs on the bearing, it might indicate that the bearing is nearing the end of its service life.
- Manufacturer’s Service Life:
Consult the manufacturer’s guidelines for the expected service life of the slewing bearing. If the bearing is approaching this limit, it’s advisable to consider replacement.
If any of these signs are observed, it’s important to consult with experts and consider replacing the slewing bearing to prevent further damage and ensure the safe and efficient operation of machinery.
What Factors Should Be Considered When Selecting a Slewing Bearing for a Specific Application?
Selecting the right slewing bearing for a specific application requires careful consideration of various factors to ensure optimal performance and longevity. Some crucial factors to take into account include:
- Load Requirements: Determine the axial, radial, and moment loads that the slewing bearing will need to support. Choose a bearing with an appropriate load-carrying capacity for the application.
- Space Limitations: Consider the available installation space, both in terms of diameter and height. Choose a slewing bearing that fits within the allocated space without compromising functionality.
- Rotational Speed: Determine the required rotational speed of the bearing. Higher rotational speeds may require bearings with advanced designs and materials to manage heat and wear.
- Environmental Conditions: Assess the operating environment for factors like temperature, humidity, dust, and corrosive substances. Select a bearing with suitable seals and coatings to withstand these conditions.
- Accuracy and Precision: For applications requiring precise positioning, such as robotics or industrial machinery, choose a bearing that offers the necessary level of accuracy in rotation.
- Mounting and Assembly: Consider the ease of installation and any special mounting requirements. Some bearings come with integrated mounting features, simplifying the assembly process.
- Lubrication and Maintenance: Evaluate the lubrication needs of the bearing. Some bearings require periodic maintenance, while others are designed for long-term lubrication.
- Expected Lifespan: Determine the desired lifespan of the bearing in relation to the application’s operational requirements. High-quality bearings with robust construction may offer longer service life.
- Cost-Benefit Analysis: Balance the initial investment with long-term benefits. Consider factors like maintenance costs, downtime, and overall equipment performance.
- Industry Standards: Ensure that the selected slewing bearing complies with relevant industry standards and regulations for safety and quality.
Ultimately, the selection process involves matching the unique requirements of the application with the capabilities of the slewing bearing. Consulting with bearing manufacturers and experts can provide valuable insights to make an informed decision.
editor by CX 2024-03-29
by
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