Please see details for slewing ring bearing Slewing Bearing
If you need more details, please feel free to contact us for designing and producing, Attn: Susan Yang
1. Why choose CHINAMFG slewing bearings
Who we are?
We (HangZhou CHINAMFG special heavy-duty and large bearing manufacturing CO., LTD) are a professional
bearing manufacturer in the world, established in 2000, specializing in slewing bearings, slewing drives
and special bearings, with design, production, sales, marketing and service from OD200mm to 8000mm.
For 18 years experiences, our bearings have flied to more than 50 countries.
Our technical team:
We have 60 employees, with 6 experienced engineers and professional technicists.
All our bearings are designed by CAD-programs, made according to customers’ special demands.
Our technical team can also verify safety & reliability depending on the load case and the strength of raceway
as well as gear and bolt connections.
Equipped with advanced manufacturing equipments and test instruments, all bearings are of uniform marking
and packing with superior quality, reasonable prices and perfect services.
We have been certificated by ISO9001:2008, and we are also aligned to international quality standards
from application consulting and engineering to productions, examinations, documentations and dispatch.
We will prepare additional test reports if customers need.
2. Structure of CHINAMFG slewing bearings
Single row ball slewing ring bearings
Double row ball slewing ring bearings
Crossed roller slewing ring bearing
Three row cylindrical roller slewing bearings
BALL & ROLLER combined slewing bearings
Flanged slewing ring bearing
Slewing bearings with external gear
Slewing bearings with internal gear
Slew bearings without gear
Slewing bearings with external flange and internal gear
Slew rings with internal flange and external gear
Slew bearings with external and internal flange
3. About CHINAMFG bearings Advantages:
3.1 introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square CHINAMFG with 4 workshop and 1 office building.
3.2 Featured products: slewing bearing and slewing drive
3.3 Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
3.4 Workers: 60
3.5 Certificate: ISO9001:2008, 3.1 certificate, CCS certificate
All CHINAMFG slew rings can betested by the 3rd party inspection organization if customer requires, such as BV, CCS, SGS, LR, ABS and so on. All swing bearings inspection reports will be supplied to customers, including raw material certificate, heat treatment certificate, UT&PT and so on.
3.6 Annual Exportation: 8 million USD
3.7 Warranty Period: All CHINAMFG slewing ring bearings have a warranty period of 18 months, for some special working condition, warranty period can be lengthened to 3-4 years.
3.8 Production Time: 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.
3.9 Technical Control
All CHINAMFG slewing ring bearings are forged rings with material steel 50Mn or 42CrMo, slewing rings are machined by CNC lathe, slew bearings raceway are quenched via medium-frequency hardening with hardness 55-60HRC, turntable bearings are drilled holes by CNC drilling machine, slew gears are machined by hobbing machine with gear quenched if required, swing bearings then are grinded by grinding machine with higher precision.
4. CHINAMFG Slewing Bearing Packing
4.1 Basic 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;
4.2 CHINAMFG slewing ring bearings can be packed by different ways.
If bearing diameter is less than 2300mm, slewing rings will be usually packed by square plywood case.
If bearing diameter is more than 2300mm, slewing rings can be packed by square plywood case, round plywood case, or steel tripod. Every package way can be totally kept goods safely.
5. CHINAMFG Slewing Bearing Transportation:
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.
Flanged slewing bearing: internal flange and external gear
E.505.20.00.C, E.650.20.00.C, E.750.20.00.C, E.850.20.00.C, E.950.20.00.C, E.1050.20.00.C, E.1200.20.00.C
E.1100.32.00.C, E.1200.32.00.C, E.1300.32.00.C, E.1400.32.00.C, E.1500.32.00.C, E.1600.32.00.C
Flanged slewing bearing: internal gear and external flange
I.505.20.00.C, I.650.20.00.C, I.750.20.00.C, I.850.20.00.C, I.950.20.00.C, I.1050.20.00.C, I.1200.20.00.C
I.1100.32.00.C, I.1200.32.00.C, I.1300.32.00.C, I.1400.32.00.C, I.1500.32.00.C, I.1600.32.00.C
Flanged slewing bearing: internal flange and external flange
SD.505.20.00.C, SD.650.20.00.C, SD.750.20.00.C, SD.850.20.00.C, SD.950.20.00.C, SD.1050.20.00.C,
SD.1100.32.00.C, SD.1200.32.00.C, SD.1300.32.00.C, SD.1400.32.00.C, SD.1500.32.00.C,
Four point contact ball slewing bearing: external gear type
E.505.20.00.B, E.650.20.00.B, E.750.20.00.B, E.850.20.00.B, E.950.20.00.B, E.1050.20.00.B, E.1200.20.00.B
E.900.25.00.B, E.1000.25.00.B, E.1100.25.00.B, E.1200.25.00.B
E.535.25.00.D.1, E.589.25.15.D.1, E.595.25.00.D.6, E.864.25.00.D.5, E.972.25.00.D.3, E.1080.25.00.D.5, E.1200.25.00.D.1
E.595.32.00.D.1, E.695.32.15.D.1, E.816.32.00.D.1, E.980.32.00.D.1, E.1144.32.15.D.1, E.1289.32.15.D.1, E.1380.32.15.D.1
Four point contact ball slewing bearing: internal gear type
I.486.20.00.B, I.616.20.00.B, I.716.20.00.B, I.816.20.00.B, I.916.20.00.B, I.1016.20.00.B, I.1166.20.00.B
I.855.25.00.B, I.955.25.00.B, I.1055.25.00.B, I.1155.25.00.B
I.340.16.00.D.1, I.486.16.00.D.1, I.535.22.00.D.3.V
I.562.25.15.D.1, I.570.25.00.D.1, I.635.25.00.D.3.V, I.750.25.00.D.1, I.850.25.00.D.1, I.950.25.00.D.1
I.810.32.00.D.1, I.815.32.10.D.1, I.816.32.10.D.1
Four point contact ball slewing bearing: none gear type
SD.486.20.00.B, SD.616.20.00.B, SD.716.20.00.B, SD.816.20.00.B, SD.916.20.00.B, SD.1016.20.00.B
SD.855.25.00.B, SD.955.25.00.B, SD.1055.25.00.B, SD.1155.25.00.B
SD.234.14.00.D.1, SD.329.20.00.D.1, SD.430.25.15.D.1, SD.475.20.00.D.1, SD.505.25.15.D.6
Double row ball slewing bearing: internal gear type
I.973.2.22.00.D.6, I.1165.2.22.00.D.6, I.1200.2.25.00.D.6, I.1346.2.30.05.D.6, I.17184.108.40.206.D.6
Double row ball slewing bearing: external gear type
E.504.2.25.00.D.6, E.608.2.25.10.D.6, E.7220.127.116.11.D.6, E.1079.2.20.12.D.3-V, E.1080.2.22.00.D.6, E.1200.2.25.00.D.1
Crossed roller slewing bearing: internal gear type
I.1165.25.12.D.3.RV, I.1251.30.12.D.1-RV, I.1346.30.15.D.1-RV, I.1460.30.12.D.1-RV, I.1530.40.12.D.1-RV
Crossed roller slewing bearing: external gear type
E.1144.30.12.D.1-RV, E.1144.30.12.D.3-RV, E.1390.30.15.D.1-R, E.1476.45.15.D.1-RV, E.1604.50.10.D.1-RV, E.1805.45.17.D.3-R
|Standard or Nonstandard:||Standard|
|Feature:||Cold-Resistant, Corrosion-Resistant, Heat-Resistant|
|Sealing Gland:||Sealed On Both Sides|
|Roller Type:||Deep Groove Raceway|
|Material:||50mn or 42CrMo|
What is the purpose of using ring gears in machinery?
Ring gears serve multiple purposes and offer various advantages when used in machinery. Here’s a detailed explanation of the purpose of using ring gears:
- Power Transmission: One of the primary purposes of ring gears in machinery is to facilitate power transmission. Ring gears, along with other meshing gears, transmit torque and rotational motion from the driving gear to the driven components or systems. They enable the transfer of power from a power source to various parts of the machinery, driving the movement and operation of different mechanisms and processes.
- Gear Ratio Control: Ring gears allow for precise control over the gear ratio in machinery. By adjusting the size of the ring gear and its meshing gears, different gear ratios can be achieved. Gear ratios determine the relationship between the rotational speeds and torques of the driving and driven gears. This ability to control the gear ratio enables machinery to operate at desired speeds, optimize torque output, and adapt to specific application requirements.
- Mechanical Advantage: Ring gears provide a mechanical advantage in machinery. By leveraging the gear ratio control mentioned above, ring gears can amplify or reduce the torque output of the power source. This mechanical advantage allows machinery to generate higher forces or torques than the original power source alone. It enables the machinery to handle heavy loads, perform tasks requiring significant force, and enhance overall operational efficiency.
- Load Distribution: Ring gears contribute to load distribution within machinery. The meshing teeth of the ring gear engage with multiple teeth of other gears, distributing the transmitted loads across these meshing points. This load distribution helps prevent excessive stress concentration on specific gear teeth, ensuring even wear and reducing the risk of gear failure. By distributing the load, ring gears enhance the overall durability and reliability of the machinery.
- Motion Control: Ring gears play a crucial role in motion control within machinery. By transmitting rotational motion, ring gears enable precise movement and synchronization of various components and mechanisms. They ensure that different parts of the machinery operate in a coordinated manner, allowing for smooth and controlled motion. Ring gears contribute to accurate positioning, speed regulation, and overall motion precision in machinery.
- Compact Design: Ring gears offer a compact design solution. Due to their annular shape, they can be integrated into machinery with limited space. The compactness of ring gears is particularly beneficial in applications where space constraints are a concern. Their small footprint allows for efficient use of available space, enabling the design of more compact and lightweight machinery without sacrificing power transmission capabilities.
- Versatile Applications: Ring gears find wide applications across various industries and machinery types. They are used in automotive transmissions, industrial machinery, robotics, aerospace systems, power generation equipment, and more. The versatility of ring gears stems from the ability to configure them in different types, such as external or internal ring gears, helical gears, or bevel gears. This versatility makes ring gears adaptable to a wide range of machinery designs and requirements.
By serving these purposes, ring gears contribute to the efficient and reliable operation of machinery. They enable power transmission, gear ratio control, mechanical advantage, load distribution, motion control, and compact design, making them essential components in various mechanical systems.
How do you maintain and service a ring gear system?
Maintaining and servicing a ring gear system is crucial to ensure its optimal performance, reliability, and longevity. Here’s a detailed explanation of the maintenance and service procedures for a ring gear system:
- Regular Inspections: Conduct regular inspections of the ring gear system to detect any signs of wear, damage, misalignment, or abnormal conditions. Inspect the gear teeth for chips, cracks, or excessive wear. Check for proper gear engagement and backlash. Inspect the mounting bolts or fasteners for tightness. Regular inspections help identify potential issues early on and prevent further damage or failures.
- Cleaning and Lubrication: Clean the ring gear system periodically to remove dirt, debris, and old lubricant. Use appropriate cleaning methods and solvents that are compatible with the gear system materials. After cleaning, apply fresh lubricant according to the manufacturer’s recommendations. Ensure proper lubrication coverage and distribution to minimize friction, wear, and heat generation.
- Lubricant Analysis: Periodically analyze the condition of the lubricant in the ring gear system to assess its effectiveness and detect any contamination or degradation. Lubricant analysis involves collecting samples and sending them to a laboratory for testing. The analysis results can provide valuable information about the lubricant’s viscosity, contamination levels, and overall condition. Based on the analysis, determine whether lubricant replacement or additional maintenance actions are necessary.
- Bearing and Seal Inspection: If the ring gear system includes bearings or seals, inspect them regularly for wear, damage, or leaks. Check for excessive play, noise, or overheating in the bearings. Inspect the seals for proper sealing and lubricant retention. Replace any worn-out bearings or damaged seals to prevent further damage to the ring gear system.
- Torque Checks: Periodically check the torque of the mounting bolts or fasteners that secure the ring gear system. Over time, vibrations and operational stresses can cause bolts to loosen. Ensure that the bolts are tightened to the manufacturer’s recommended torque specifications. Perform torque checks during scheduled maintenance intervals or when any signs of loosening are observed.
- Alignment and Gear Meshing: Check and adjust the alignment of the ring gear system if necessary. Misalignment can lead to uneven wear, increased load on the gear teeth, and reduced performance. Ensure proper gear meshing and backlash according to the manufacturer’s specifications. Adjust the gear positioning or contact pattern if deemed necessary during inspections or maintenance activities.
- Repair or Replacement: If any significant damage, wear, or malfunction is identified during inspections or maintenance activities, plan for repair or replacement of the affected components. Depending on the severity and nature of the issue, repairs may involve repairing gear teeth, replacing damaged parts, or realigning the gear system. If extensive damage is present or the gear system has reached the end of its service life, consider replacing the entire ring gear system.
- Documentation and Record-Keeping: Maintain detailed documentation and records of all maintenance and service activities performed on the ring gear system. Keep track of inspection results, lubrication schedules, repairs, parts replacements, and any other relevant information. These records help establish a maintenance history, track performance trends, and provide valuable reference information for future maintenance and troubleshooting.
It’s important to note that the specific maintenance and service procedures may vary depending on the type of ring gear system, its application, and the manufacturer’s guidelines. Always refer to the manufacturer’s recommendations and consult with experts or professionals when necessary to ensure proper maintenance and servicing of the ring gear system.
Can you explain the concept of meshing with a ring gear?
Meshing with a ring gear refers to the process of engaging and interlocking the teeth of a gear with the internal teeth of a ring gear. It is a fundamental concept in gear systems where the rotation and torque transfer occur between two gears. Here’s a detailed explanation of the concept of meshing with a ring gear:
When two gears come into contact and their teeth interlock, they are said to be meshing. In the case of a ring gear, the meshing occurs when the teeth of an external gear, such as a pinion gear, engage with the internal teeth of the ring gear. The teeth of the pinion gear fit precisely between the teeth of the ring gear, creating a mechanical connection.
The process of meshing involves several important considerations:
- Tooth Engagement: Proper tooth engagement is crucial for efficient and smooth meshing. The teeth of the gears must align correctly to ensure a proper fit. This alignment ensures that the teeth make contact at the correct pitch point and maintain a consistent mesh throughout the gear rotation.
- Tooth Profile: The tooth profile, such as the shape and size of the teeth, is designed to facilitate smooth meshing. The profile ensures that the teeth slide smoothly against each other without excessive friction, noise, or wear. The tooth profile also affects the load distribution, torque transmission, and overall performance of the gear system.
- Lubrication: Lubrication plays a crucial role in the meshing process. It helps reduce friction and wear between the teeth, ensuring smooth operation and preventing damage to the gears. Proper lubrication also helps dissipate heat generated during meshing, improving the overall efficiency and reliability of the gear system.
- Clearance and Backlash: Clearance and backlash are important considerations in gear meshing. Clearance refers to the space between the tips of the teeth of the external gear and the root of the teeth of the ring gear. Backlash is the amount of play or movement between the engaged teeth. Proper clearance and backlash are necessary to prevent interference, ensure smooth rotation, and accommodate any misalignment or thermal expansion that may occur during operation.
The quality of the meshing directly affects the performance, efficiency, and reliability of the gear system. Proper design, manufacturing precision, and maintenance practices are essential to achieve optimal meshing between gears, including ring gears.
It’s important to note that the specific parameters and requirements for meshing, such as tooth geometry, clearance, backlash, and lubrication, may vary depending on the application, gear type, and operating conditions.
editor by CX 2023-11-17