Product Description
VSU 25 1055 Slewing Ring Bearing Manufacturers Factory
Four-point contact ball slewing turntable bearings
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.
Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.
Double row ball 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.
Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.
| Type | • Single row 4 point contact ball slewing bearing • Single row crossed cylindrical roller slewing bearings • Double row ball slewing bearings •Double row Roller/ball combination slewing bearing •Three-Row Roller Slew Ring Bearing |
| Rolling elements | Steel ball / Cylinder Roller |
| Rolling elements Material | GCr5/GCr15SiMn/Customized |
| Bearing Material | 50Mn/42CrMo/42CrMo4V /Customized |
| Cage Material | Nylon/ steel /copper |
| Structure | taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators |
| Outer diameter | 50-10000mm |
| Bore size | 50-10000mm |
| Mounting hole | Through hole/Tapped hole |
| Raceway hardness | 55-62HRC |
| Inner and outer ring modulation hardness |
229-269HB/Customized |
| Gear type | No gear ,Internal gear , External gear. |
| Embellish grease | EP2 lithium lubricating grease |
| Certificate | ABS.BV,DNV,ISO9001,GL,3.1,3.2 |
| Application area | Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator |
| Brand Name | LYMC |
| Place of Origin | HangZhou ZheJiang |
| Warranty | 12 months |
| Payment term | T/T is our first choice |
|
Packing details |
1,Filling with anti-rust oil 2.Corved with Plastic paper 3.Corved with kraft paper 4.Corved with Blue tie 5.Put in wooden box |
Product Process
Application:
– Excavators – Drilling rigs – Mining Equipments – Cranes -Offshore Equipments – Vehicles – Machine Tools – Wind Turbines
About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.
Our Service:
FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service.
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| Standard or Nonstandard: | Standard |
|---|---|
| Feature: | High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant |
| Sealing Gland: | Sealed On Both Sides |
| Rolling-Element Number: | Single-Row |
| Material: | 50mn/42CrMo |
| Type: | No Gear |
| Samples: |
US$ 275/Set
1 Set(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
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.
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.
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.
editor by Dream 2024-05-08