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 bearings, roller bearings and precision bearings as per customer’s different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing.
Three row roller slewing ring bearing has 3 seat-rings, which separate the upper, lower and radial raceway, via which the load of each row of the rollers may be specified. Thus it can carry different load simultaneously and its load capacity is the largest 1 of the 4 types

CZPT bearings can supply the following featured slewing bearing:
1. Single row slewing rings have a single row of balls, a standard bearing raceway, and 4 points of contact between the balls and raceway;
2. Double row products have tow rows of ball bearings, 2 raceways, and 8 points of contacts for each ball;
3. Slewing rings with 3 independent rows of rollers;
4. Cross roller slewing rings have a single row of rollers with the axes of alternation, adjacent rollers at right angles to 1 another
5. Ball and roller combined slewing rings have a row of rollers and a row of balls into the same unit.

Structure:
Triple row roller slewing bearing has 3 different types:
Triple row roller slewing bearing with no gear
Triple row roller slewing bearing with external gear
Triple row roller slewing bearing with internal gear

Advantages:
1. Best quality and price
2. Small order accepted
3. ISO certified company
4. Variorum models
5. Extensive stock available
6. OEM accepted

Application:
Mine machine, port hoisting machine, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments.

Packaging Details:
1. Bearing surface is covered with the anti-rust oil first; And then wrapped with the plastic film;
2. And then packed with Kraft paper and professional belts;
3. At last, with wooden box totally at the outer packing to invoid the rust or the moist;
4. We can depend on the customers demand to be packed;

Details for turret swing bearing VLI200944N:
ID: 840MM
OD: 1048MM
H: 56MM
W. T.: 67.5KG
Holes in outer ring: 16-φ 18
Holes in inner ring: 22- M12
Material: 50Mn
Surface treatment: Bluing
Application: Water-treatment equipment

More details, please contact us sooner…

External gear:
VLA2571-N
VLA200544-N
VLA200644-N
VLA20 0571 -N
VLA200844-N
VLA200944-N
VLA257194-N
VSA2571-N
VSA200544-N
VSA200644-N
VSA20 0571 -N
VSA200844-N
VSA200944-N
VSA257194-N
VSA25571-N
VSA25571-N
VSA25 0571 -N
VSA251055-N

Internal gear:
VLI2571-N
VLI200544-N
VLI200644-N
VLI20 0571 -N
VLI200844-N
VLI200944-N
VLI257194-N
VSI2571-N
VSI200544-N
VSI200644-N
VSI20 0571 -N
VSI200844-N
VSI200944-N
VSI257194-N
VSI25571-N
VSI25571-N
VSI25 0571 -N
VSI251055-N

Without gear:
VLU2571
VLU200544
VLU200644
VLU20 0571
VLU200844
VLU200944
VLU257194
VSU2571
VSU200544
VSU200644
VSU20 0571
VSU200844
VSU200944
VSU257194
VSU25571
VSU25571
VSU25 0571
VSU251055

 

Model Overall Dimension Mounting Dimension Structure Dimension Gear (mm) Axial Load Mass (Kgs)
Da di H La Li n1 n2 φ1 φ2 D1 b h B C Di da m z do x
mm mm mm            
VLI2571N  518 325 56 490 375 8 12 φ18 M12 459 40 11.5 44.5 47.5 415.5 412.5 5 67 335 0 600 28.5
VLI 20 571N 516 325 56 490 375 8 12 φ18 M12 456 40 11.5 44.5 47.5 415.5 412.5 5 67 335 0 300 36.3
VLI2571N  518 325 56 490 375 8 12 18 M12 456 40 8.5 44.5 47.5 415.5 412.5 5 67 335 0 295 27.5
VLI200544N  648 444 56 620 505 10 16 φ18 M12 589 44.5 11.5 44.5 47.5 545.5 542.5 6 76 456 0 790 40.6
VLI200544N  648 444 56 620 505 10 16 18 M12 589 44.5 11.5 44.5 47.5 545.5 542.5 6 76 456 0 385 38
VLI200644N  748 546 56 720 605 12 18 φ18 M12 689 44.5 11.5 44.5 47.5 645.5 642.5 6 93 558 0 900 47.4
VLI200644N  748 546 56 720 605 12 18 18 M12 689 44.5 8.5 44.5 47.5 645.5 642.5 6 93 558 0 455 45
VLI20 0571 N  848 648 56 820 705 12 20 φ18 M12 789 44.5 11.5 44.5 47.5 745.5 742.5 6 110 660 0 530 54
VLI20 0571 N  848 648 56 820 705 12 20 18 M12 789 44.5 8.5 44.5 47.5 745.5 742.5 6 110 660 0 530 51.5
VLI200844N  948 736 56 920 805 14 20 φ18 M12 889 44.5 11.5 44.5 47.5 845.5 842.5 8 94 752 0 1200 65.2
VLI200844N  948 736 56 920 805 14 20 18 M12 889 44.5 8.5 44.5 47.5 845.5 842.5 8 94 752 0 600 61.5
VLI30 0571 N  1100 810 90 1060 894 30 30 22 M20   71 19 71 71 953 957 10 83 830 0 2550 164
VLI200944N 1048 840 56 1571 905 16 22 φ18 M12 989 44.5 11.5 44.5 47.5 945.5 942.5 8 107 856 0 1350 71
VLI200944N  1048 840 56 1571 905 16 22 18 M12 989 44.5 8.5 44.5 47.5 945.5 942.5 8 107 856 0 670 67.5
VLI357155N  1200 910 90 1160 994 30 30 22 M20   71 19 71 71 1053 1057 10 93 930 0 2800 181
VLI257194N 1198 984 56 1170 1055 16 24 φ18 M12 1139 44.5 11.5 44.5 47.5 1096 1093 8 125 1000 0 2000 80
VLI257194N  1198 984 56 1170 1055 16 24 18 M12 1139 44.5 8.5 44.5 47.5 1096 1093 8 125 1000 0 770 81.5
VLI301155N  1300 1571 90 1260 1094 36 36 22 M20*40   71 19 71 71 1153 1157 10 103 1030 0 3100 198
VLI301255N  1400 1110 90 1360 1194 42 42 22 M20*40   71 19 71 71 1253 1257 10 113 1130 0 3350 215
VLI301355N  1500 1210 90 1460 1294 42 42 22 M20*40   71 19 71 71 1353 1357 10 123 1230 0 3600 233
VLI301455N  1600 1310 90 1560 1394 48 48 22 M20*40   71 19 71 71 1453 1457 10 133 1330 0 4000 251

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Rolling Body: Ball Bearings
The Number of Rows: Single
Outer Dimension: 200-6000mm
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Axial, Radial and Tilting Moment
Samples:
US$ 460/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

slewing bearing

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.

slewing bearing

How does Proper Lubrication Impact the Performance and Longevity of Slewing Bearings?

Proper lubrication plays a crucial role in enhancing the performance and extending the longevity of slewing bearings. Here’s how it impacts these aspects:

  • Reduced Friction and Wear:

Lubrication forms a protective layer between the rolling elements and raceways, reducing friction and wear. This minimizes surface contact and prevents metal-to-metal contact, leading to less wear and extended bearing life.

  • Heat Dissipation:

Lubrication helps dissipate heat generated during operation. Adequate heat management prevents overheating, which can otherwise lead to premature bearing failure and reduced efficiency.

  • Corrosion Protection:

Lubricants with anti-corrosion properties form a barrier that protects bearing surfaces from moisture and environmental contaminants. This is crucial in preventing rust and corrosion, especially in challenging operating environments.

  • Sealing Effect:

Lubrication can enhance the sealing effect of bearing seals, preventing the ingress of dust, dirt, and other particles. This maintains the integrity of the bearing’s internal components and reduces the risk of contamination-related failures.

  • Noise and Vibration Reduction:

Properly lubricated bearings generate less friction and operate more smoothly, resulting in reduced noise and vibration levels. This is particularly important in applications where noise reduction is essential.

  • Improved Efficiency:

Effective lubrication minimizes energy losses due to friction, leading to improved overall efficiency of machinery. This is significant in applications that require high performance and energy savings.

  • Prevention of Micro-Movements:

Lubrication helps prevent micro-movements between the rolling elements and raceways, reducing wear caused by repeated impacts and vibrations during operation.

  • Maintenance Reduction:

Proper lubrication reduces the need for frequent maintenance and replacement of bearings. This not only saves time and resources but also contributes to increased uptime and reduced operational disruptions.

  • Longevity:

By reducing wear, preventing corrosion, and managing heat, proper lubrication significantly extends the lifespan of slewing bearings. This, in turn, contributes to improved equipment reliability and reduced lifecycle costs.

In conclusion, proper lubrication is essential for optimizing the performance, efficiency, and durability of slewing bearings. Regular maintenance and adherence to manufacturer-recommended lubrication intervals ensure that the bearings operate smoothly and consistently over their operational life.

slewing bearing

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.

China wholesaler Slewing Ring Bearings Ball Turntable Bearing Gear Slewing Bearing with Surface Treatment by Bluing (VLI200944N)   bearing driver kitChina wholesaler Slewing Ring Bearings Ball Turntable Bearing Gear Slewing Bearing with Surface Treatment by Bluing (VLI200944N)   bearing driver kit
editor by CX 2024-05-15