China best 011.20.1220.000.11.1504 Single Axis PV Solar Tracker Slewing Drive and Slewing Ring

Product Description

Drawing No. Balltrackdia. DL [mm]               Tooth width Permissible tangential forcesnormal Permissible tangential forcesmaximum
Weight Outerdiameter Innerdiameter Overall External Internal Number of bolt 
(O.D.) (I.D) height bolt circle dia. bolt circle dia. holes per hole circle
Da Di H La Li n b    
  [kg] [mm] [mm]  [mm]    [mm]  [mm] [mm]   [mm] [kN] [kN]
011.20.571.000.11.1504           011.20.571.001.21.1504 101 862,8 679 82 800 706 24 50 1560                       2400   3120                    4800
011.20.571.000.11.1504 011.20.571.001.21.1504 128 1078,4 895 82 1015 922 30 50 2080                       3200 4160                      6400
011.20.1220.000.11.1504 011.20.1220.001.21.1504 178 1342,4 1140 82 1270 1170 48 58 2915                        4483 5830                     8966
011.20.1385.000.11.1504 011.20.1385.001.21.1504 201 1502,4 1305 82 1435 1335 54 58 2915                        4483 5830                     8966
011.25.1200.600.11.1503  011.25.1200.601.21.1503 301 1378,6 1100 102 1290 1135 36 76 4770
6975 
9540            13950
011.25.1461.000.11.1503  011.25.1461.001.21.1503 381 1648,6 1360 102 1555 1395 40 76 4770
6975 
9540          13950
011.25.1800.000.11.1503 011.25.1800.001.41.1503 488 2001,6 1700 102 1890 1735 48 76 5725                         8371 11450               16742 
011.30.1440.190.11.1503 011.30.1440.191.41.1503 520 1653,6 1320 120 1545 1365 36 91 685
1002
1371
2004
011.30.1734.000.11.1503  011.30.1734.001.41.1503 636 1953,6 1615 120 1845 1660 44 91 685
1002
1371
2004
011.30.2031.600.11.1503 011.30.2031.601.41.1503 755 2253,6 1910 120 2140 1955 48 91 685
1002
1371
2004
011.30.2235.000.11.1503 011.30.2235.001.41.1503 827 2457,6 2115 120 2345 2160 52 91 685
1002
1371
2004
011.35.1750.700.11.1503 011.35.1750.701.41.1503 789 1985,2 1620 138 1860 1670 44 104 914
1336
1828
2672
011.35.2220.000.11.1503 011.35.2220.001.41.1503 1019 2461,2 2090 138 2335 2135 60 104 914
1336
1828
2672
011.35.2620.000.11.1503 011.35.2620.001.41.1503 1244 2876,8 2490 138 2735 2540 60 104 1045
1527
2090
3054
011.40.2240.000.11.1502 011.40.2240.001.41.1502 1316 2524,8 2090 156 2375 2145 48 117 1175
1627
2351
3255
011.40.2619.000.11.1502 011.40.2619.001.41.1502 1615 2912,4 2465 156 2755 2520 52 117 1322 
1831 
2645
3662
011.40.2795.000.11.1502 011.40.2795.001.41.1502 1723 3096,0 2645 156 2930 2700 54 117 1469
2034
2939
4068
011.40.2915.000.11.1502 011.40.2915.001.41.1502 1790 3216,0 2765 156 3050 2820 60 117 1469
2034
2939
4068
011.40.3150.000.11.1502 011.40.3150.001.41.1502 1969 3456,0 3000 156 3285 3055 60 117 1469
2034
2939      4068
011.50.2987.001.49.1502 2288 3290,4 2820 185 3130 2880 66 138 2160 4320
011.50.3167.001.49.1502 2431 3470,4 3000 185 3310 3060 66 138 2160 4320
011.50.3347.001.49.1502 2566 3650,4 3180 185 3490 3240 72 138 2160 4320
011.50.3567.001.49.1502 2702 3866,4 3400 185 3710 3460 78 138 2160 4320
011.50.3747.001.49.1502 2837 4046,4 3580 185 3890 3640 84 138 2160 4320
011.50.4140.001.49.1502 3282 4456,0 3970 187 4285 4030 90 140 2434 4869
012.18.0748.000.11.1504 012.18.0748.002.21.1504 90 823 648 77 798 705 24 45 1520                   2325 3040         4650
012.20.571.000.11.1504 012.20.571.001.21.1504 118 971 784 82 944 850 30 50 2260                   3475 4520            6950
012.20.1085.000.11.1504 012.20.1085.001.21.1504 154 1161 960 90 1134 1040 36 55 3110                   4800 6220         9600
012.20.1360.000.11.1504 012.20.1360.001.21.1504 213 1440 1210 82 1410 1300 54 58 3640                    5600 7280        11200
012.25.1360.600.11.1503 012.25.1360.601.21.1503 336 1460 1180 102 1425 1270 36 76 4770
6975 
9540
13950
012.25.1600.000.11.1503 012.25.1600.001.21.1503 405 1700 1404 102 1665 1510 42 76 5720
8370
11440
16740
012.30.1381.000.11.1503 012.30.1381.001.41.1503 474 1500 1164 120 1455 1275 36 91 685
1002 
1370
2004 
012.30.1630.000.11.1503 012.30.1630.001.41.1503 558 1750 1416 120 1705 1525 40 91 685
1002 
1370
2004 
012.30.1800.000.11.1503 012.30.1800.001.41.1503 643 1920 1568 120 1875 1695 48 91 685
1002 
1370
2004
012.30.1995.000.11.1503 012.30.1995.001.41.1503 716 2115 1764 120 2070 1890 48 91 800
1169 
1600
2338
012.30.2330.000.11.1503 012.30.2330.001.41.1503 839 2450 2100 120 2405 2225 54 91 800
1169 
1600
2338
012.30.2538.000.11.1503 012.30.2538.001.41.1503 963 2660 2288 120 2615 2430 60 91 914
1336  
1828
2672
012.35.1960.400.11.1503 012.35.1960.401.41.1503 851 2090 1722 138 2045 1850 52 104 914
1336 
1828
2672
012.35.2500.000.11.1503 012.35.2500.001.41.1503 1112 2630 2254 138 2585 2385 66 104 914
1336 
1828
2672
012.35.2690.000.11.1503  012.35.2690.001.41.1503 1225 2820 2432 138 2775 2580 72 104 1045
1527
2090
3054
012.40.2199.300.11.1502 012.40.2199.301.41.1502 1238 2350 1920 156 2295 2065 52 117 1175
1627
2350
3255
012.40.2622.400.11.1502 012.40.2622.401.41.1502 1495 2770 2336 156 2715 2485 60 117 1175
1627
2350
3255
012.40.2950.000.11.1502 012.40.2950.001.41.1502 1764 3100 2646 156 3045 2815 60 117 1322
1831
2645
3662
012.40.3300.000.11.1502 012.40.3300.001.41.1502 1935 3450 3006 156 3395 3165 66 117 1322
1831
2645
3662
012.45.2940.000.19.1502       012.45.2940.001.49.1502 1950 3100 2656 175 3045 2800 66 132 1326
1836
2652
3673
012.45.3400.100.19.1502 012.45.3400.101.49.1502 2435 3560 3080 175 3505 3260 72 132 1658
 4591
3316
2295
012.50.2559.201.49.1502 1892 2725 2250 185 2670 2410 60 138 2160 4320
012.50.3520.001.49.1502 2657 3685 3200 185 3630 3370 78 138 2400 4800
012.50.3739.001.49.1502 2823 3905 3420 185 3850 3590 84 138 2400 4800
012.50.3839.001.49.1502 2905 4005 3520 185 3950 3690 84 138 2400 4800

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Standard or Nonstandard: Standard
Feature: High Speed, Vacuum, Antimagnetic, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Deep Groove Raceway
Material: Bearing Steel
Customization:
Available

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What are the signs that indicate a need for slewing ring replacement or maintenance, and how can they be diagnosed?

When it comes to slewing rings, certain signs indicate the need for replacement or maintenance to ensure optimal performance and prevent potential failures. Here’s a detailed explanation of the signs that indicate a need for slewing ring replacement or maintenance, along with methods for diagnosis:

  • Unusual Noise: Unusual noises, such as grinding, clicking, or squealing sounds, during the operation of rotating systems may indicate a problem with the slewing ring. These noises can be caused by worn-out or damaged rolling elements, insufficient lubrication, misalignment, or other issues. Diagnosis involves conducting a thorough inspection of the slewing ring and its components to identify the source of the noise and determine the appropriate course of action.
  • Abnormal Vibration: Excessive vibration during the operation of rotating systems can be a warning sign of a faulty slewing ring. It may indicate misalignment, imbalanced loads, damaged rolling elements, or worn-out bearings. Vibration analysis techniques, such as using vibration sensors or analyzers, can help diagnose the source and severity of the vibration. Based on the analysis results, appropriate maintenance or replacement actions can be taken.
  • Irregular Movement: Any irregular movement or jerking motion of the rotating system can be an indication of a problem with the slewing ring. It may be caused by damaged or worn-out teeth on the slewing ring, misalignment, or inadequate lubrication. Visual observation of the system’s movement during operation can help identify any irregularities. Additionally, conducting a detailed inspection of the slewing ring and its teeth can provide further insight into the issue.
  • Increased Friction: If there is a noticeable increase in friction or resistance during the rotation of the system, it could be a sign of a problem with the slewing ring. This may be due to insufficient or contaminated lubrication, damaged rolling elements, or misalignment. Diagnosis involves checking the lubrication levels and quality, inspecting the rolling elements for signs of damage, and verifying the alignment of the slewing ring.
  • Uneven or Excessive Wear: Visual inspection of the slewing ring can reveal signs of uneven or excessive wear. This can manifest as worn-out or pitted rolling elements, damaged or missing teeth, or abnormal wear patterns on the raceways. Regular inspections and comparing the current condition with the manufacturer’s specifications or previous inspection records can help diagnose the level of wear and determine if maintenance or replacement is necessary.
  • Leakage or Contamination: Leakage of lubricant or the presence of contaminants, such as dirt, water, or debris, in the slewing ring assembly can be indicative of a problem. It may lead to inadequate lubrication, accelerated wear, or corrosion. Visual inspection of the slewing ring and any associated seals or gaskets can help identify any signs of leakage or contamination. Addressing the source of the leakage and ensuring proper sealing is essential to maintain the integrity and performance of the slewing ring.
  • Reduced Load-Carrying Capacity: If the rotating system experiences difficulty in handling its intended loads or shows signs of decreased load-carrying capacity, it may indicate an issue with the slewing ring. Factors such as worn-out rolling elements, damaged raceways, or misalignment can contribute to the reduction in load-carrying capacity. Performance testing and comparing the system’s current capabilities with its original specifications can help diagnose any loss in load-carrying capacity.

In summary, signs that indicate a need for slewing ring replacement or maintenance include unusual noise, abnormal vibration, irregular movement, increased friction, uneven or excessive wear, leakage or contamination, and reduced load-carrying capacity. These signs can be diagnosed through visual inspections, vibration analysis, performance testing, and comparing the observed conditions with the manufacturer’s specifications. Early detection and timely maintenance or replacement of the slewing ring can prevent further damage, ensure safe operation, and extend the lifespan of the rotating system.

Can you explain the primary functions and roles of slewing rings in various applications?

Slewing rings play crucial functions and serve different roles in various applications across industries. These specialized bearings enable controlled rotational movement and support heavy loads. Here’s a detailed explanation of the primary functions and roles of slewing rings in different applications:

  • Construction and Cranes: In construction machinery and cranes, slewing rings are used to support the boom or jib, enabling 360-degree rotation. They provide a stable and low-friction interface that allows for efficient material handling and precise positioning of heavy loads. Slewing rings in these applications must withstand high axial, radial, and moment loads.
  • Wind Turbines: Slewing rings play a critical role in wind turbine systems. They support the rotor and allow it to rotate according to wind direction, facilitating efficient power generation. Slewing rings in wind turbines must handle significant loads while ensuring smooth rotation and precise alignment between the rotor and the nacelle.
  • Industrial Equipment: Slewing rings find applications in various industrial equipment, including indexing tables, turntables, robotic arms, and packaging machinery. In these applications, slewing rings enable controlled and precise rotation, allowing for accurate positioning, indexing, and automation. They contribute to the overall efficiency and functionality of industrial machinery.
  • Transportation and Automotive: Slewing rings are utilized in transportation and automotive applications, such as vehicle cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They provide a stable and reliable connection that enables safe and controlled rotation. In these applications, slewing rings must withstand dynamic loads and harsh operating conditions while ensuring the safety and stability of the equipment.
  • Medical and Rehabilitation Equipment: Slewing rings are important components in medical and rehabilitation equipment, including patient lifts and adjustable beds. They enable smooth and controlled movement, allowing for easy and safe patient transfers and positioning. Slewing rings in these applications must provide precise and quiet operation, ensuring patient comfort and care.
  • Aerospace and Defense: Slewing rings are utilized in aerospace and defense applications, such as radar systems, missile launchers, and satellite antennas. They enable precise and controlled movement in critical systems, contributing to accurate tracking, targeting, and communication. Slewing rings in aerospace and defense applications must meet stringent requirements for reliability, precision, and durability.
  • Marine and Offshore: Slewing rings are employed in marine and offshore equipment, including cranes, davits, and rotating platforms on ships and offshore rigs. They enable heavy lifting and controlled rotation in challenging marine environments. Slewing rings in marine applications must be corrosion-resistant and capable of withstanding harsh weather conditions and high loads.

Overall, slewing rings serve as essential components in a wide range of applications, enabling controlled rotation, supporting heavy loads, and ensuring precise positioning. Their versatility and ability to withstand varying loads and operating conditions make them invaluable in industries such as construction, wind energy, industrial automation, transportation, healthcare, aerospace, and marine sectors.

How does the design of a slewing ring contribute to efficient rotation and movement?

The design of a slewing ring plays a crucial role in facilitating efficient rotation and movement in mechanical systems. Several design features contribute to its functionality and performance. Here’s a detailed explanation of how the design of a slewing ring contributes to efficient rotation and movement:

  • Structure and Load Distribution: Slewing rings are designed with a large diameter compared to their thickness. This structural design ensures optimal load distribution across the bearing, allowing it to support axial, radial, and moment loads efficiently. The arrangement of rolling elements within the raceways helps distribute the load evenly, reducing stress concentrations and minimizing friction during rotation.
  • Low Friction and Smooth Rotation: The rolling elements, which can be balls or rollers, are precisely positioned within the raceways of the inner and outer rings. The design ensures that the rolling elements make contact with the raceways at specific angles, reducing friction and enabling smooth rotation. This low-friction design minimizes power loss, enhances energy efficiency, and contributes to the overall efficiency of the system.
  • Gear Mechanism: In some slewing ring designs, a gear mechanism is integrated into the bearing. This allows the slewing ring to act as a rotational drive system, enabling controlled and precise movement. The gear teeth engage with external gears or pinions, providing a means to transmit torque and facilitating rotational motion. The gear mechanism in a slewing ring design contributes to efficient and synchronized rotation in applications where precise positioning or continuous rotation is required.
  • Sealing and Lubrication: Slewing rings are designed with sealing systems to protect the internal components from contaminants and prevent lubricant leakage. The sealing systems help maintain the integrity of the bearing by keeping out dirt, dust, water, and other particles that could cause damage or premature wear. Proper lubrication is also crucial for efficient rotation and movement. The design of slewing rings often includes lubrication channels or grease fittings to ensure adequate lubricant supply to the rolling elements and raceways, reducing friction and promoting smooth operation.
  • Materials and Durability: Slewing rings are typically made of high-quality materials such as alloy steels or specialty steels that offer excellent strength, durability, and corrosion resistance. The choice of materials and the design of the slewing ring take into account the specific application requirements, including factors such as load capacity, operating temperature, and environmental conditions. The design ensures that the slewing ring can withstand the anticipated loads, operating conditions, and service life requirements.

Overall, the design of a slewing ring is carefully engineered to maximize load-bearing capacity, minimize friction, enable smooth rotation, and ensure durability. By incorporating features such as optimized load distribution, low-friction rolling elements, gear mechanisms, sealing systems, and appropriate materials, slewing rings contribute to efficient rotation and movement in mechanical systems, enhancing the overall performance and reliability of the equipment.

China best 011.20.1220.000.11.1504 Single Axis PV Solar Tracker Slewing Drive and Slewing Ring  China best 011.20.1220.000.11.1504 Single Axis PV Solar Tracker Slewing Drive and Slewing Ring
editor by Dream 2024-05-15