Product Description
Production Description for Slewing Bearing, ring bearing, rolling bearings, turntables, swing bearing
Slewing Bearing VLI200944 for construction machinery, cranes,shipyard crane
1 | Type | single row 4 point contact ball slewing bearing, ring bearing, slewing gear |
2 | Bore diameter | 840mm |
3 | Outside diameter | 1048mm |
4 | Height | 56mm |
5 | Material | 42CrMo, 50Mn |
6 | Precision | P0. P6. P5. |
7 | Cage/retainer | Nylon or aluminum |
8 | Gear type | internal gear |
9 | N.W. | 67.5KGS |
Model | Overall Dimension | ||
Da | di | H | |
mm | |||
VLI2571N ZT | 518 | 325 | 56 |
VLI 20 571N ZT RL2 | 516 | 325 | 56 |
VLI2571N | 518 | 325 | 56 |
VLI200544N ZT | 648 | 444 | 56 |
VLI200544N | 648 | 444 | 56 |
VLI200644N ZT | 748 | 546 | 56 |
VLI200644N | 748 | 546 | 56 |
VLI20 0571 N ZT | 848 | 648 | 56 |
VLI20 0571 N | 848 | 648 | 56 |
VLI200844N ZT | 948 | 736 | 56 |
VLI200844N | 948 | 736 | 56 |
VLI30 0571 N | 1100 | 810 | 90 |
VLI200944N ZT | 1048 | 840 | 56 |
VLI200944N | 1048 | 840 | 56 |
VLI357155N | 1200 | 910 | 90 |
VLI257194N ZT | 1198 | 984 | 56 |
VLI257194N | 1198 | 984 | 56 |
VLI301155N | 1300 | 1571 | 90 |
VLI301255N | 1400 | 1110 | 90 |
VLI301355N | 1500 | 1210 | 90 |
VLI301455N | 1600 | 1310 | 90 |
Model | Overall Dimension | ||
Da | di | H | |
mm | |||
232.20.0400.013 | 518 | 326.5 | 56 |
232.20.0400.503 | 518 | 326.5 | 56 |
232.21.571.013 | 517 | 326.5 | 56 |
232.20.0500.013 | 648 | 445.2 | 56 |
232.20.0500.503 | 648 | 445.2 | 56 |
232.21.571.013 | 647 | 445.2 | 56 |
232.20.0600.013 | 748 | 547.2 | 56 |
232.20.0600.503 | 748 | 547.2 | 56 |
232.21.0675.013 | 747 | 547.2 | 56 |
232.20.0700.013 | 848 | 649.2 | 56 |
232.20.0700.503 | 848 | 649.2 | 56 |
232.21.571.013 | 847 | 649.2 | 56 |
232.20.0800.013 | 948 | 737.6 | 56 |
232.20.0800.503 | 948 | 737.6 | 56 |
232.21. 0571 .013 | 947 | 737.6 | 56 |
282.30.0900.013 | 1100 | 812 | 90 |
282.30. 0571 .013 | 1098 | 812 | 90 |
232.20.0900.013 | 1048 | 841.6 | 56 |
232.20.0900.503 | 1048 | 841.6 | 56 |
232.21. 0571 .013 | 1047 | 841.6 | 56 |
282.30.1000.013 | 1200 | 912 | 90 |
282.30.1075.013 | 1198 | 912 | 90 |
232.20.1000.013 | 1198 | 985.6 | 56 |
232.20.1000.503 | 1198 | 985.6 | 56 |
232.21.1075.013 | 1197 | 985.6 | 56 |
282.30.1100.013 | 1300 | 1012 | 90 |
282.30.1175.013 | 1298 | 1012 | 90 |
282.30.1200.013 | 1400 | 1112 | 90 |
282.30.1275.013 | 1398 | 1112 | 90 |
282.30.1300.013 | 1500 | 1212 | 90 |
282.30.1375.013 | 1498 | 1212 | 90 |
282.30.1400.013 | 1600 | 1310 | 90 |
282.30.1475.013 | 1598 | 1310 | 90 |
Model | Overall Dimension | ||
Da | di | H | |
mm | |||
I.505.20.00.C | 518 | 326.5 | 56 |
I.650.20.00.C | 648 | 445.2 | 56 |
I.750.20.00.C | 748 | 547.2 | 56 |
I.850.20.00.C | 848 | 649.2 | 56 |
I.950.20.00.C | 948 | 737.6 | 56 |
I.1100.32.00.C | 1100 | 812 | 90 |
I.1050.20.00.C | 1048 | 841.6 | 56 |
I.1200.32.00.C | 1200 | 912 | 90 |
I.1200.20.00.C | 1198 | 985.6 | 56 |
I.1300.32.00.C | 1300 | 1012 | 90 |
I.1400.32.00.C | 1400 | 1112 | 90 |
I.1500.32.00.C | 1500 | 1212 | 90 |
I.1600.32.00.C | 1600 | 1310 | 90 |
Why choose CZPT slewing bearings
A pioneer in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
ISO certified company
Variorum models
7*24hours hotline to help you with your cranes
Strict quality control system to ensure quality for slewing bearing
LYHY Slewing Bearing Types
LYHY slewing bearings can be divided into the following types as per their structures:
single row 4 point contact ball slewing bearing,
single row cross roller slewing bearing,
double row different ball diameter slewing bearing,
three row cylindrical roller slewing bearing and roller/ball combination slewing bearing.
And all these types of slewing bearings can be further divided into bearings without gears, bearings with external gears and bearings with internal gears.
Detailed description of these types slewing bearings
Single row 4 point contact ball slewing bearings
This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Triple row cylindrical roller slewing bearings
This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.
About CZPT bearings
1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building.
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia
Production Process of CZPT slewing bearings
Quality Control Process of CZPT slewing bearings
LYHY Slewing Bearing Packing
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers demand to be packed;
Transportation:
All CZPT slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.
Slewing Ring Bearings——Applications:
Slewing ring bearings are widely used in industry and known as “the machine joints” Here under 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 equipment (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 equipment (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Packing machinery
INSTALLATION OF CZPT SLEWING BEARINGS
Preparation:
Make sure that the model is correct and slewing bearing isn’t damaged during transportation.
2. Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3. The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.
Installation:
1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2. The slewing bearing has a soft zone marked with an “s” on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3. When the bearing is placed on the supporting frame work it is important to check the interface between these 2 surfaces. This check should be carried out with the insertion of feel gauges between the 2 surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4. Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5. After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.
FAQ:
Q: Are LYHY BEARINGS trading company or manufacturer?
A: LYHY BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings
Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV
Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.
Q: How about the package for CZPT bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.
Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.
Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.
Q: Is sample available?
A: Yes, sample order is acceptable.
Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.
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Standard or Nonstandard: | Standard |
---|---|
Sealing Gland: | Sealed On Both Sides |
Rolling-Element Number: | Single-Row |
Roller Type: | Four Point Contact Ball |
Material: | 50mn or 42CrMo4 |
Type: | Internal Gear |
Samples: |
US$ 400/Piece
1 Piece(Min.Order) | |
---|
Customization: |
Available
| Customized Request |
---|
Can you Explain the Concept of Axial and Radial Load Capacity in Slewing Bearings?
The axial and radial load capacities are fundamental parameters that define the ability of slewing bearings to withstand different types of loads along different directions. Here’s an explanation of these concepts:
- Axial Load Capacity:
The axial load capacity of a slewing bearing refers to its ability to withstand loads that act parallel to the axis of rotation. In other words, it’s the maximum force that can be applied along the vertical or horizontal axis without causing significant deformation or failure of the bearing components.
For example, in applications where the bearing supports vertical loads like those encountered in cranes or excavators, the axial load capacity is crucial to ensure the stability and safety of the equipment. Slewing bearings designed for high axial load capacities have sturdy components and optimized raceway profiles to distribute the load evenly and prevent stress concentrations.
- Radial Load Capacity:
The radial load capacity of a slewing bearing pertains to its ability to withstand loads that act perpendicular to the axis of rotation. These loads are directed toward or away from the center of the bearing. Radial loads can result from weight, force, or moments acting perpendicular to the axis of rotation.
For instance, in applications involving cantilevered structures, the radial load capacity is essential to support the bending moments and forces applied to the bearing. Slewing bearings with high radial load capacities are designed to handle these loads without excessive deformation, minimizing wear and maintaining operational integrity.
- Combined Load Situations:
Real-world applications often involve combinations of axial and radial loads. Slewing bearings must be selected and designed to handle these combined loads effectively. Engineers consider both axial and radial load capacities to ensure that the bearing can safely operate under the expected loading conditions.
Manufacturers provide load rating charts and data that specify the maximum axial and radial loads a slewing bearing can handle. Engineers use this information to make informed decisions about bearing selection for various applications.
In summary, the axial and radial load capacities of slewing bearings are essential parameters that determine their ability to withstand specific types of loads in various directions. Proper consideration of these capacities ensures safe and reliable operation in diverse applications.
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 2024-04-29
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