China Best Sales Light Type Flange Slewing Ring Slewing Gear 21 0411 01 manufacturer
Product Description
Slewing Bearing Production Description
Why choose CHINAMFG slewing bearings
A CHINAMFG in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
SO 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
CHINAMFG 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 CHINAMFG 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 CHINAMFG slewing bearings
Quality Control Process of CHINAMFG 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;
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
Transportation:
All CHINAMFG 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.
FAQ:
Q: Are LYHY BEARINGS trading company or manufacturer?
A: CHINAMFG 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 CHINAMFG 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.
INSTALLATION OF CHINAMFG 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.
| External Gear | |||||||
| External Diameter | Internal Diameter | Height | Weight | Module | Gear No. | Model | * |
| 244 | 125 | 25 | 5 | 2 | 120 | STD | |
| 318 | 169 | 45 | 14 | 3 | 104 | STD | |
| 379 | 210 | 45 | 20 | 4 | 92 | STD | |
| 403.5 | 234 | 55 | 25 | 4.5 | 88 | STD | |
| 440 | 265 | 50 | 28 | 4.5 | 95 | STD | |
| 505 | 304 | 56 | 32 | 5 | 99 | SL | |
| 505 | 342 | 56 | 32 | 5 | 99 | SLBP | |
| 529 | 323 | 54 | 45 | 5 | 103 | STD | |
| 535 | 305 | 75 | 61 | 8 | 65 | STD | |
| 589 | 383 | 75 | 62 | 5 | 116 | STD | |
| 640 | 434 | 56 | 44 | 6 | 105 | SL | |
| 640 | 472 | 56 | 46 | 6 | 105 | SLBP | |
| 654 | 390 | 85 | 98 | 8 | 80 | STD | |
| 689 | 455 | 74 | 89 | 6 | 112 | STD | |
| 700 | 479 | 77 | 85 | 6 | 114 | STD | |
| 742 | 534 | 56 | 52 | 6 | 122 | SL | |
| 742 | 572 | 56 | 55 | 6 | 122 | SLBP | |
| 774 | 516 | 82 | 118 | 8 | 94 | STD | |
| 816 | 573 | 90 | 129 | 6 | 132 | STD | |
| 840 | 634 | 56 | 60 | 6 | 138 | SL | |
| 840 | 672 | 56 | 62 | 6 | 138 | SLBP | |
| 863 | 679 | 82 | 102 | 6 | 142 | STD | |
| 886 | 610 | 85 | 155 | 8 | 108 | STD | |
| 950 | 734 | 56 | 68 | 8 | 117 | SL | |
| 950 | 772 | 56 | 71 | 8 | 117 | SLBP | |
| 979 | 717 | 100 | 178 | 10 | 94 | STD | |
| 1571 | 770 | 82 | 159 | 8 | 125 | STD | |
| 1046 | 834 | 56 | 76 | 8 | 129 | 21 0571 01 | SL |
| 1046 | 872 | 56 | 78 | 8 | 129 | 31 0571 01 | SLBP |
| 1094 | 833 | 82 | 179 | 8 | 134 | STD | |
| 1144 | 869 | 100 | 228 | 10 | 111 | STD | |
| 1198 | 984 | 56 | 86 | 8 | 148 | SL | |
| 1198 | 1571 | 56 | 91 | 8 | 148 | SLBP | |
| 1218 | 930 | 98 | 268 | 10 | 119 | STD | |
| 1289.5 | 984 | 114 | 330 | 10 | 125 | STD | |
| 1358 | 1045 | 98 | 325 | 10 | 133 | STD | |
| 1431 | 1200 | 63 | 176 | 8 | 177 | STD | |
| 1476 | 1084 | 110 | 503 | 10 | 144 | STD | |
| 1604 | 1206 | 130 | 653 | 10 | 157 | STD | |
| 1605 | 1270 | 110 | 469 | 12 | 131 | STD | |
| 1727 | 1500 | 63 | 213 | 8 | 214 | STD | |
| 1836 | 1433 | 135 | 791 | 16 | 112 | STD | |
| 1929 | 1565 | 110 | 617 | 14 | 135 | STD | |
| 1975 | 1750 | 63 | 244 | 8 | 245 | STD | |
| 2571 | 1615 | 150 | 1004 | 14 | 142 | STD | |
| 2140 | 1720 | 130 | 953 | 16 | 131 | STD | |
| 2165 | 1950 | 68 | 278 | 8 | 269 | STD | |
| 2267 | 1815 | 140 | 1174 | 16 | 139 | STD | |
| 2342 | 2091 | 70 | 373 | 8 | 290 | STD | |
| 2390 | 1950 | 130 | 1111 | 18 | 130 | STD | |
| 2534 | 2042 | 144 | 1482 | 18 | 138 | STD | |
| 2695 | 2425 | 63 | 411 | 8 | 335 | STD | |
| 2790 | 2290 | 164 | 1895 | 18 | 151 | STD | |
| 3116 | 2600 | 164 | 2200 | 20 | 152 | STD | |
| 3200 | 2914 | 190 | 716 | 10 | 318 | STD | |
| Internal Gear | |||||||
| External Diameter | Internal Diameter | Height | Weight | Module | Gear No. | Model | * |
| 300 | 174.5 | 40 | 10 | 3 | 60 | STD | |
| 385 | 217 | 55 | 24 | 4 | 56 | STD | |
| 451 | 291 | 55 | 28 | 5 | 60 | STD | |
| 486 | 325 | 56 | 31 | 5 | 67 | SLBP | |
| 515 | 316 | 54 | 44 | 5 | 64 | STD | |
| 518 | 325 | 56 | 31 | 5 | 67 | SL | |
| 562 | 285 | 60 | 44 | 6 | 66 | STD | |
| 610 | 403 | 68 | 63 | 6 | 68 | STD | |
| 616 | 445 | 56 | 43 | 6 | 76 | SLBP | |
| 648 | 445 | 56 | 41 | 6 | 76 | SL | |
| 665 | 457 | 60 | 61 | 6 | 77 | STD | |
| 716 | 546 | 56 | 51 | 6 | 93 | SLBP | |
| 740 | 493 | 76 | 105 | 6 | 83 | STD | |
| 748 | 546 | 56 | 48 | 6 | 93 | SL | |
| 771 | 541 | 70 | 96 | 6 | 91 | STD | |
| 816 | 649 | 56 | 58 | 6 | 110 | SLBP | |
| 835 | 578 | 82 | 130 | 8 | 73 | STD | |
| 848 | 649 | 56 | 55 | 6 | 110 | SL | |
| 871 | 634 | 70 | 113 | 8 | 80 | 07 0571 00 | STD |
| 916 | 736 | 56 | 70 | 8 | 94 | SLBP | |
| 935 | 674 | 82 | 150 | 8 | 85 | STD | |
| 948 | 736 | 56 | 63 | 8 | 94 | SL | |
| 960 | 706 | 75 | 144 | 8 | 89 | STD | |
| 975 | 784 | 82 | 120 | 8 | 100 | STD | |
| 1016 | 840 | 56 | 76 | 8 | 109 | 32 0571 01 | SLBP |
| 1048 | 840 | 56 | 71 | 8 | 107 | 22 0571 01 | SL |
| 1050 | 794 | 82 | 168 | 8 | 100 | STD | |
| 1066 | 785 | 85 | 190 | 10 | 79 | STD | |
| 1166 | 986 | 56 | 92 | 8 | 125 | SLBP | |
| 1170 | 882 | 98 | 258 | 10 | 89 | STD | |
| 1175 | 961 | 90 | 179 | 10 | 98 | STD | |
| 1198 | 986 | 56 | 80 | 8 | 125 | SL | |
| 1251 | 979 | 91 | 238 | 10 | 99 | STD | |
| 1360 | 1052 | 98 | 321 | 10 | 106 | STD | |
| 1390 | 1162 | 63 | 171 | 8 | 146 | STD | |
| 1431 | 1143 | 97 | 323 | 10 | 115 | STD | |
| 1530 | 1178 | 130 | 541 | 12 | 100 | STD | |
| 1560 | 1215 | 110 | 471 | 12 | 102 | STD | |
| 1676 | 1422 | 78 | 278 | 10 | 144 | STD | |
| 1770 | 1375 | 150 | 802 | 14 | 100 | STD | |
| 1870 | 1501 | 110 | 607 | 14 | 108 | STD | |
| 1916 | 1662 | 78 | 324 | 10 | 168 | STD | |
| 2002 | 1595 | 150 | 951 | 14 | 115 | STD | |
| 2130 | 1906 | 68 | 290 | 8 | 239 | STD | |
| 2190 | 1731 | 144 | 1199 | 16 | 109 | STD | |
| 2195 | 1780 | 130 | 979 | 16 | 112 | STD | |
| 2298 | 2066 | 70 | 343 | 8 | 259 | STD | |
| 2590 | 2110 | 160 | 1626 | 18 | 118 | STD | |
| 2695 | 2426 | 63 | 414 | 8 | 304 | STD | |
| 2785 | 2362 | 130 | 1270 | 18 | 132 | STD | |
| 3571 | 2495 | 158 | 2154 | 20 | 126 | STD | |
| 3190 | 2914 | 90 | 735 | 8 | 366 | STD | |
| Without Gear | |||||
| External Diameter | Internal Diameter | Height | Weight | Reference | * |
| 234 | 125 | 25 | 5 | STD | |
| 290 | 150 | 41.5 | 14 | STD | |
| 300 | 140 | 52 | 16 | STD | |
| 329 | 190 | 45 | 17 | STD | |
| 350 | 190 | 52 | 20 | STD | |
| 403.5 | 235 | 55 | 26 | STD | |
| 440 | 240 | 60 | 37 | STD | |
| 440 | 265 | 50 | 29 | STD | |
| 455 | 265 | 71 | 45 | STD | |
| 474 | 336 | 46 | 24 | STD | |
| 475 | 335 | 45 | 30 | STD | |
| 486 | 342 | 56 | 29 | SLBP | |
| 500 | 305 | 75 | 51 | STD | |
| 518 | 304 | 56 | 23 | SL | |
| 589 | 383 | 75 | 66 | STD | |
| 616 | 472 | 56 | 38 | SLBP | |
| 626 | 424 | 72 | 70 | STD | |
| 648 | 434 | 56 | 34 | SL | |
| 700 | 479 | 77 | 90 | STD | |
| 712 | 487 | 72 | 91 | STD | |
| 716 | 572 | 56 | 45 | SLBP | |
| 748 | 534 | 56 | 40 | SL | |
| 816 | 672 | 56 | 52 | SLBP | |
| 816 | 573 | 90 | 137 | STD | |
| 848 | 634 | 56 | 46 | SL | |
| 900 | 670 | 86 | 148 | STD | |
| 916 | 772 | 56 | 60 | SLBP | |
| 948 | 734 | 56 | 52 | SL | |
| 979 | 717 | 100 | 193 | STD | |
| 1016 | 872 | 56 | 67 | 33 0571 01 | SLBP |
| 1048 | 834 | 56 | 58 | 23 0571 01 | SL |
| 1130 | 845 | 100 | 271 | STD | |
| 1144 | 869 | 100 | 248 | STD | |
| 1166 | 1571 | 56 | 78 | SLBP | |
| 1198 | 984 | 56 | 67 | SL | |
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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, 42CrMo |
| Type: | External Gear |
| Samples: |
US$ 500/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How do you choose the right size ring gear for your application?
Choosing the right size ring gear for a specific application involves considering several factors related to the gear system, load requirements, space constraints, and performance objectives. Here’s a detailed explanation of the process involved in selecting the appropriate size ring gear:
- Determine the Gear System Parameters: Understand the specific requirements of the gear system in which the ring gear will be used. This includes identifying the input power, desired output speed, torque requirements, and operating conditions such as temperature, vibration, and lubrication.
- Calculate Gear Ratios: Determine the required gear ratios for the gear system. Gear ratios define the relationship between the rotational speeds and torques of the driving and driven gears. By knowing the desired gear ratios, you can calculate the appropriate size of the ring gear relative to the other gears in the system.
- Evaluate Load Capacity: Assess the load capacity needed for the application. Consider the maximum torque and radial loads that the ring gear will experience during operation. It’s crucial to select a ring gear that can handle the anticipated loads without excessive wear, deformation, or failure.
- Consider Space Limitations: Determine the available space for the ring gear within the application. Consider the overall dimensions, such as the outer diameter, inner diameter, and thickness of the ring gear. Ensure that the selected size fits within the designated space without interfering with other components or compromising the overall functionality of the system.
- Account for Manufacturing Considerations: Consider the manufacturability of the ring gear. Evaluate factors such as the feasibility of producing the required tooth profile, the availability of suitable materials, and the manufacturing capabilities of the supplier. It’s important to choose a size that can be efficiently manufactured while meeting the required quality standards.
- Consult Design Guidelines and Standards: Refer to industry design guidelines, standards, and specifications specific to the type of gear and application. These guidelines provide recommendations and formulas for calculating gear sizes based on factors such as tooth strength, contact stress, and bending stress. Adhering to recognized standards ensures that the selected ring gear size is appropriate for the intended application.
It is often beneficial to consult with gear design engineers or industry experts to ensure the proper selection of the ring gear size. They can provide detailed analysis, simulation, and expertise in choosing the optimal size based on the specific requirements and constraints of the application.
By carefully considering these factors and following established design practices, you can choose the right size ring gear that will deliver reliable performance, efficient power transmission, and long-term durability for your application.
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What is the lifespan of a typical ring gear?
The lifespan of a typical ring gear can vary depending on various factors. Here’s a detailed explanation of the factors that influence the lifespan of a ring gear:
The lifespan of a ring gear is influenced by several factors, including:
- Material Quality: The quality of the material used to manufacture the ring gear plays a significant role in its lifespan. High-quality materials with good mechanical properties, such as hardened steel or alloys with high wear resistance, tend to have longer lifespans compared to lower-quality materials.
- Design and Load Conditions: The design of the ring gear, including its tooth profile, dimensions, and load-bearing capacity, affects its lifespan. Ring gears designed to handle higher loads and stresses are likely to have longer lifespans. The operating conditions, such as the magnitude and frequency of the torque loads, also impact the lifespan of the ring gear.
- Maintenance and Lubrication: Proper maintenance and lubrication are essential for preserving the lifespan of a ring gear. Regular inspection, cleaning, and lubrication of the gear system help reduce wear and prevent damage. Inadequate maintenance or the use of improper lubricants can accelerate wear and shorten the lifespan of the ring gear.
- Operating Environment: The operating environment in which the ring gear operates affects its lifespan. Factors such as temperature extremes, humidity, contaminants, and exposure to corrosive substances can impact the material integrity and performance of the ring gear. Harsh operating environments may lead to accelerated wear and reduced lifespan.
- Application-Specific Factors: The specific application in which the ring gear is used can influence its lifespan. Some applications may subject the ring gear to severe operating conditions, high-speed rotations, frequent starts and stops, or heavy shock loads, which can affect its durability and longevity. The accuracy of gear alignment, proper installation, and any additional factors specific to the application should be considered to assess the ring gear’s lifespan.
Given these factors, it is challenging to provide a specific lifespan for a typical ring gear. Lifespan estimates can range from tens of thousands to hundreds of thousands or even millions of operating cycles or hours of operation. The longevity of a ring gear can be extended through proper selection of materials, careful design, routine maintenance, and adherence to recommended operating and lubrication practices.
It’s important to note that the lifespan of a ring gear can also depend on the presence of any unforeseen or exceptional circumstances, such as manufacturing defects, abnormal operating conditions, or unforeseen incidents that can cause premature failure. Regular inspection and monitoring of the gear system can help identify any signs of wear, damage, or potential issues, allowing for timely maintenance or replacement to ensure continued reliable operation.

What industries commonly use ring gears?
Ring gears, also known as annular gears or internal gears, are utilized in various industries due to their unique characteristics and capabilities. Here’s a detailed explanation of the industries that commonly use ring gears:
- Automotive Industry: Ring gears are extensively used in the automotive industry. They are a crucial component in automotive transmissions, differential systems, and steering mechanisms. Ring gears help transmit torque and rotational motion, enabling smooth shifting of gears and efficient power transfer in vehicles.
- Aerospace Industry: The aerospace industry relies on ring gears for various applications. They are used in aircraft engines, landing gear systems, actuation mechanisms, and aerospace gearboxes. Ring gears provide reliable and precise motion control in critical aerospace systems.
- Industrial Machinery: Ring gears find wide applications in industrial machinery, including heavy machinery, manufacturing equipment, and power generation systems. They are used in gearboxes, speed reducers, and other power transmission systems. Ring gears enable efficient torque transfer and motion control in industrial settings.
- Robotics: Ring gears play a significant role in robotics and automation. They are employed in robotic joints, manipulator arms, and motion control systems. Ring gears provide precise and smooth rotation, allowing robots to perform intricate tasks with accuracy and repeatability.
- Power Generation: Ring gears are utilized in power generation equipment such as wind turbines, hydroelectric generators, and steam turbines. They are part of the gearbox systems that convert the rotational motion of the turbine blades into electrical energy. Ring gears enable efficient power transmission and adaptability to varying load conditions.
- Heavy Equipment and Construction: The heavy equipment and construction industry extensively use ring gears in equipment like excavators, cranes, loaders, and bulldozers. They are vital for the operation of the drivetrain and hydraulic systems, enabling controlled movement and power transfer in demanding construction environments.
- Marine Industry: Ring gears are employed in various marine applications, including ship propulsion systems, marine winches, and steering mechanisms. They provide reliable torque transfer and motion control in marine vessels, ensuring efficient navigation and maneuverability.
- Renewable Energy: Ring gears are utilized in renewable energy systems such as solar tracking systems and tidal power generation. They enable the precise tracking of solar panels and the efficient conversion of tidal forces into electrical energy.
The diverse applications of ring gears across these industries highlight their versatility and importance in various mechanical systems. The specific design, size, and material selection of ring gears may vary depending on the industry requirements and operating conditions.


editor by CX 2024-03-27