China manufacturer Europe Standard Light Series of L Shape Slewing Ring

Product Description

Slewing ring bearing is also called slewing ring, slewing bearing, turntable bearing, and rotary bearing. 
Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions; 
On the other hand, slewing ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily. 
Europe Standard Light Series of L shape Slewing Bearing Ring
Feature:
 L-shape slewing ring  is widely applied on larger diameter and limited heavy machinery,light bearing capacity.More for light machinery like small crane,Manual lift,Turntable ladder and so on 

None Gear

Model Raceway
Diameter
(mm)
De     Di
(mm)   (mm)
Oe   Oi   ne   ni  n1
(mm) (mm)
Ci      Ce
(mm)    (mm)
Be   Bi
(mm) (mm)
dp   m    Z   x
(mm) (mm)   (mm)
Weigh
kg
FU20.414 414 518     304 490   332   8   12   4 412,5   415,5 454  368 ·   ·   ·    · 23
FU20.544 544 648     434 620   462  10   14   4 542.5   545.5 584  498 ·    ·    ·    · 31
FU20.644 644 748     534 720   562  12   16   4 642.5  645.5 684  598 ·    ·    ·    · 37
FU20.744 744 848     634 820   662  12   16   4 742.5  745.5 784  698 ·    ·    ·    · 43
FU20.844 844 948     734 920   762  14   18   4 842.5  845.5 884  798 ·    ·    ·    · 48
FU20.944 944 1048    834 1571  862  16   20   4 942.5  945.5 984  898 ·    ·    ·    · 54
FU20.1094 1094 1198    984 1170  1012  16  20   4 1092.5  1095.5 1134 1048 ·    ·    ·    · 63

Outer Gear

FW20.414 414 505     304 455   332  10   12   4 412,5    415,5 ·   368 495   5    99   0 30
FW20.544 544 640     434 585   462  14   14   4 542.5    545.5 ·   498 630   6   105   0 42
FW20.644 644 742     534 685   562  16   16   4 642.5    645.5 ·   598 732   6   122   0 49
FW20.744 744 838     634 785   662  18   16   4 742.5    745.5 ·   698 828   6   138   0 55
FW20.844 844 950     734 885   762  18   18   4 842.5    845.5 ·   798 936   8   117   0 66
FW20.944 944 1046    834 985   862  20   20   4 942.5    945.5 ·   898 1032  8   129   0 72
FW20.1094 1094 1198    984 1135  1012  22  20   4 1092.5  1095.5 ·   1048 1184  8   148   0 84

Inner Gear

FN20.414 414 518     325 490   375   8   12   4 412,5    415,5 454    · 335   5    67   0 28
FN20.544 544 648     446 620   505   10  16   4 542.5    545.5 584    · 456   6    76   0 38
FN20.644 644 748     548 720   605   12  18   4 642.5    645.5 684    · 558   6    96   0 45
FN20.744 744 848     650 820   705   12  20   4 742.5    745.5 784    · 660   6   110   0 52
FN20.844 844 948     738 920   805   14  20   4 842.5    845.5 884    · 752   8    94   0 62
FN20.944 944 1048    842 1571  905   16  22   4 942.5    945.5 984    · 856   8   107   0 68
FN20.1094 1094 1198    986 1170  1055  16  24   4 1092.5  1095.5 1134   · 1000  8   125   0 82

n1:M8×1
 

 

1.Gear Heat Treatment

2. Structure
2.1 Slewing ring bearings have different types as per different structures, here below is what we offering now: 
Single row ball slewing ring bearings 
Double row ball slewing ring bearings
Crossed roller slewing ring bearings 
Three row roller slewing ring bearings 
Flange slewing ring bearings
2.2 The above slewing ring bearings can also be divided into 3 different types as per different transmissions:
Slewing ring bearings with no gear
Slewing ring bearings with external gear
Slewing ring bearings with internal gear
3. Features: 
Slewing ring bearings have more features: compact structure, reliable guide, simple installation, and easily maintenance
 
4. Application: 
Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, 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 and other large rotary device
Single row ball slewing ring bearing:

1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at 4 points, via which the axial force, radial force and resultant moment may be born simultaneously.

2.2. Structure
Slewing ring bearings have different types as per different structures, here below is what we offering now:
Single row ball slewing bearing has 3 different types:
Single row ball slewing bearing with no gear 
Single row ball slewing bearing with external gear 
Single row ball slewing bearing with internal gear 
Single row ball slewing ring bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at 4 points, via which the axial force, radial force and resultant moment may be born simultaneously.
 
2. Structure
 
Slewing ring bearings have different types as per different structures, here below is what we offering now:
Single row ball slewing bearing has 3 different types:
Single row ball slewing bearing with no gear 
Single row ball slewing bearing with external gear 
Single row ball slewing bearing with internal gear 

3. Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.
 
4. Application: 
Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines
Double row ball slewing ring bearing:
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The double row ball slewing bearing has 3 seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed.
 
2. Structure:
Double row ball slewing bearing has 3 different types:
Double row ball slewing bearing with no gear
Double row ball slewing bearing with external gear 
Double row ball slewing bearing with internal gear 
 
3. Features:
Double row ball slewing ring bearings have following features:
Larger dimension of axial and radial and compact structure.
 
4. Application:
Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.
 Double row ball slewing ring bearing:
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The double row ball slewing bearing has 3 seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed.
 
2. Structure:
Double row ball slewing bearing has 3 different types:
Double row ball slewing bearing with no gear
Double row ball slewing bearing with external gear 
Double row ball slewing bearing with internal gear 

3. Features:
Double row ball slewing ring bearings have following features:
Larger dimension of axial and radial and compact structure.
 
4. Application:
Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.
Crossed roller slewing ring bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
With the cross roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90° groove, separated from each other by a spacer retainer.  This design allows just 1 bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
 
2. Structure:
Cross roller slewing bearing has 3 different types:
Cross roller ball slewing bearing with no gear 
Cross roller ball slewing bearing with external gear 
Cross roller ball slewing bearing with internal gear 

3. Features
Cross roller slewing ring bearings have following features:
1. High precision: cross roller bearings can be made high precision bearings, at P4, P2.
2. High rigidity: These series roller bearings are with preload.
3. High load capacity: This series roller bearing can support axial load, radial load, and tilting load.
4. Small volume: this series roller bearing can save space for the machine.
 
4. Application 
Cross roller slewing rings are widely applied in the precision rotary table, rotary joint of manipulator, medical equipment, and measuring instrument etc
Triple row roller slewing ring bearing 
1.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
 
2. 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 
 
3. Features   
Triple row roller slewing ring bearings have following features:
Larger axial and radial dimension, compact structure
 
4. Application
Triple row roller slewing rings are widely used in heavy-duty machines which require large working radius, such as bucket-wheel excavators, wheeled cranes, ship cranes, ladle turret, auto cranes etc.
 
Flange Slewing Bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
Flange slewing bearing is a special slewing ring bearing, it can have 1 flange in the outer ring, or 1 flange in the inner ring, even it can have 1 flange in both inner ring and outer ring.
 
2. Structure:
Flange slewing bearing has 3 different types:
Flange slewing bearing with no gear
Flange slewing bearing with external gear 
Flange slewing bearing with internal gear 
 
3. Features   
Flange slewing bearings have following features:
Compact structure and easily installment.
 
4. Application
Flange slewing bearings are widely used in tow truck, and other applications are the same as slewing bearings, such as lifting & transport machinery, mining machinery, construction machinery, excavator, concrete machine, paper machine, plastic and rubber machine and steel plant.
 
Excavator Slewing Bearing
Excavator slewing bearing is a special slewing ring bearing as per its applications. And it is a very important part for excavators, we can supply excavator slewing bearings for both second-hand excavators for maintenance and new excavators.
 
2. Structure:
Excavator slewing bearing are usually made as per single row ball slewing bearing structure, and most of them are internal gear types, but some are external gear types.
 
3. Features   
Excavator slewing bearings have familiar features as single row ball slewing ring bearings.
Compact structure, light weight and easily installment.
 
4. Application
Excavator slewing bearings are widely used for all brands of excavators, such as Komatsu, Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Samsung, Caterpillar, Daewoo, Kato, Volvo, CHINAMFG and so on.

The suitable temperature and working environment for slewing bearing
The slewing bearing produced by our company can work normally at -300C.~+ 700C. If users need to adapt to lower or higher temperature support, our engineering technicians can design for you. If the slewing bearing are used in particularly hostile environment, such as Marine c1imate, dust or CHINAMFG particles (dust, cement, coal powder) etc. Special sealing rings, protective devices, and proper oil paths must be selected. Therefore, we hope users to do the daily maintenance work to make your slewing bearing function normally

The suitable temperature and working environment for slewing bearing
The slewing bearing produced by our company can work normally at -300C.~+ 700C. If users need to adapt to lower or higher temperature support, our engineering technicians can design for you. If the slewing bearing are used in particularly hostile environment, such as Marine c1imate, dust or CHINAMFG particles (dust, cement, coal powder) etc. Special sealing rings, protective devices, and proper oil paths must be selected. Therefore, we hope users to do the daily maintenance work to make your slewing bearing function normally

Installation  of slewing bearing
1.
Handling and transportation .The slewing bearing must be handled carefully

.Transportation and storage of slewing bearing should be held horizontally and stored in a dry room

.For hoisting lift bolt is suitable and please move it horizontally , do not hit anything, especially the direction collision

.The slewing bearing surface is covered with antitrust agent, whose rust proof life is usually 6 months For those whose storage

  life of more than 6 months (such as accessories) should take the antitrust package or other storage measures again

2.Installing support requirements .Generally, install matching support adopts tubular structure , the cylinder’s wall should be better

   aligned at the center of the raceway

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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: Spherical Raceway
Material: Bearing Steel
Samples:
US$ 1/Set
1 Set(Min.Order)

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Customization:
Available

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What safety considerations should be taken into account when using slewing rings in industrial settings?

When using slewing rings in industrial settings, several safety considerations should be taken into account to ensure the well-being of personnel, equipment, and the surrounding environment. Here’s a detailed explanation of the safety considerations when using slewing rings:

  • Proper Training and Familiarity: Personnel involved in the operation, maintenance, and servicing of systems equipped with slewing rings should receive proper training and be familiar with the specific procedures and safety guidelines related to slewing ring usage. This includes understanding the system’s limitations, recommended operating parameters, and emergency procedures.
  • Safe Working Distance: Establishing a safe working distance is crucial when working with rotating systems that incorporate slewing rings. Adequate barriers, guardrails, or safety signs should be in place to prevent unintended access to hazardous areas around the slewing ring. Personnel should be aware of the safe working zones and maintain a safe distance from the rotating components.
  • Lockout/Tagout Procedures: Before performing any maintenance or repair tasks on systems with slewing rings, proper lockout/tagout procedures should be followed to ensure the equipment is de-energized and cannot be accidentally started. This prevents unexpected rotation of the slewing ring during maintenance activities, reducing the risk of entanglement or injury.
  • Personal Protective Equipment (PPE): Personnel working with or around slewing rings should wear appropriate personal protective equipment, such as safety helmets, protective eyewear, gloves, and safety footwear. The specific PPE requirements may vary depending on the nature of the industrial setting and potential hazards associated with slewing ring operation.
  • Regular Inspection and Maintenance: Routine inspection and maintenance of slewing rings are essential for identifying any signs of wear, damage, or misalignment. Regularly scheduled inspections help detect potential issues early on and allow for timely repairs or replacements, reducing the risk of sudden failures or accidents during operation.
  • Proper Lubrication: Adequate lubrication of slewing rings is crucial for their optimal performance and longevity. Lubrication intervals and methods recommended by the manufacturer should be followed to ensure proper lubrication. Improper or inadequate lubrication can lead to increased friction, overheating, accelerated wear, and potential failure of the slewing ring.
  • Environmental Considerations: The environmental conditions in which slewing rings operate should be taken into account for safety purposes. Factors such as temperature extremes, moisture, dust, or corrosive substances can affect the performance and durability of slewing rings. Proper sealing, protective coatings, and environmental controls should be implemented to mitigate potential hazards and ensure safe operation.
  • Emergency Stop and Shutdown: Rotating systems equipped with slewing rings should be equipped with emergency stop buttons or other means of immediate shutdown. Personnel should be trained on how to use these emergency stop features effectively and be aware of the emergency shutdown procedure to quickly and safely halt the rotation of the slewing ring in case of an emergency.
  • Compliance with Regulations and Standards: It is essential to comply with relevant safety regulations, standards, and industry guidelines when using slewing rings in industrial settings. These regulations may vary depending on the region and industry-specific requirements. Adhering to these guidelines helps ensure the safety and compliance of the equipment and protects against potential hazards.

In summary, safety considerations when using slewing rings in industrial settings include proper training, maintaining safe working distances, following lockout/tagout procedures, wearing appropriate PPE, conducting regular inspections and maintenance, ensuring proper lubrication, considering environmental factors, implementing emergency stop measures, and complying with safety regulations. By addressing these safety considerations, the risks associated with slewing ring operation can be minimized, promoting a safe working environment and preventing accidents or injuries.

What maintenance practices are recommended for slewing rings to ensure optimal functionality?

Proper maintenance is essential to ensure the optimal functionality and longevity of slewing rings. Regular maintenance practices help prevent premature wear, minimize downtime, and ensure reliable performance. Here are some recommended maintenance practices for slewing rings:

  • Cleaning: Regularly clean the slewing rings to remove dirt, debris, and contaminants that can cause abrasion and affect the smooth operation of the rolling elements. Use appropriate cleaning agents and methods as recommended by the manufacturer.
  • Lubrication: Adequate lubrication is crucial for the smooth operation and reduced friction of slewing rings. Follow the manufacturer’s recommendations for the type of lubricant, the frequency of lubrication, and the quantity to be applied. Regularly inspect the lubrication system and replenish or replace the lubricant as needed.
  • Inspection: Periodically inspect the slewing rings for any signs of damage, wear, or misalignment. Check for abnormal noise, vibration, or irregularities in motion. Inspect the gear teeth, raceways, seals, and mounting interfaces. If any issues are identified, take appropriate action, such as repair or replacement, to prevent further damage.
  • Torque Checks: Regularly check the torque of the fasteners and bolts that secure the slewing rings. Ensure that they are tightened to the specified torque values. Loose fasteners can cause misalignment and compromise the performance and safety of the slewing rings.
  • Seal Inspection: Inspect the seals of the slewing rings to ensure they are intact and properly functioning. Damaged or worn seals can lead to contamination and loss of lubrication, resulting in increased friction and potential damage to the slewing rings. Replace any damaged seals promptly.
  • Alignment and Mounting: Proper alignment and mounting of slewing rings are critical for their optimal functionality. Ensure that the slewing rings are correctly aligned and securely mounted according to the manufacturer’s specifications. Misalignment or improper mounting can lead to increased stress, premature wear, and reduced performance.
  • Environmental Protection: Take measures to protect the slewing rings from harsh environmental conditions. Shield them from excessive moisture, dust, chemicals, and extreme temperatures whenever possible. Implement appropriate sealing systems and consider the use of protective covers or enclosures, especially in outdoor or exposed applications.
  • Training and Documentation: Provide appropriate training to personnel responsible for the maintenance of slewing rings. Ensure they are aware of the recommended maintenance practices and follow proper procedures. Keep comprehensive documentation of maintenance activities, including lubrication schedules, inspections, repairs, and replacements.

It is important to note that maintenance practices may vary depending on the specific application, environmental conditions, and manufacturer’s recommendations. Always refer to the manufacturer’s guidelines and consult with experts or maintenance professionals when necessary to ensure the most effective maintenance practices for your slewing rings.

How does the choice of slewing rings affect the overall performance and reliability of rotating systems?

The choice of slewing rings has a significant impact on the overall performance and reliability of rotating systems. The selection of the appropriate slewing ring involves considering various factors such as load capacity, operating conditions, precision requirements, and application-specific needs. Here’s a detailed explanation of how the choice of slewing rings affects the overall performance and reliability of rotating systems:

  • Load Capacity: The load capacity of the slewing ring is a critical factor in determining the performance and reliability of the rotating system. Choosing a slewing ring with an adequate load capacity ensures that the system can handle the expected loads without excessive stress or deformation. If the selected slewing ring has insufficient load capacity for the application, it can lead to premature failure, increased wear, and compromised reliability.
  • Operating Conditions: The operating conditions, including factors such as temperature, humidity, dust, and exposure to corrosive substances, influence the choice of slewing rings. It is essential to select a slewing ring that is designed to withstand the specific environmental conditions of the application. Failure to consider the operating conditions can result in accelerated wear, corrosion, reduced performance, and decreased reliability of the rotating system.
  • Precision Requirements: Some applications require high precision and accuracy in the movement and positioning of the rotating system. The choice of slewing ring with appropriate precision is crucial to meet these requirements. Slewing rings designed for precision applications incorporate features such as high-precision raceways, gear teeth, or preloading mechanisms. Selecting a slewing ring with inadequate precision can lead to inaccuracies, positioning errors, and compromised performance of the rotating system.
  • Material Selection: The choice of materials for the slewing ring affects its durability, resistance to wear, and overall reliability. Different materials, such as carbon steel, stainless steel, or specialized alloys, have varying properties and performance characteristics. The selection of the appropriate material depends on factors such as load requirements, operating conditions, and the presence of corrosive or abrasive elements. Choosing the wrong material can result in premature wear, reduced lifespan, and compromised reliability of the rotating system.
  • Sealing and Lubrication: Slewing rings require proper sealing and lubrication to ensure smooth operation and prevent contamination or inadequate lubrication. The choice of slewing rings with effective sealing mechanisms and suitable lubrication requirements is crucial for maintaining performance and reliability. Inadequate sealing or improper lubrication can lead to increased friction, accelerated wear, and decreased reliability of the rotating system.
  • Manufacturer and Quality: The choice of a reputable manufacturer and high-quality slewing rings is essential for ensuring reliability and performance. Reliable manufacturers adhere to stringent quality control processes, use advanced manufacturing techniques, and provide comprehensive technical support. Choosing slewing rings from trusted manufacturers reduces the risk of premature failures, ensures consistent performance, and enhances the overall reliability of the rotating system.

In summary, the choice of slewing rings has a significant impact on the overall performance and reliability of rotating systems. Considering factors such as load capacity, operating conditions, precision requirements, material selection, sealing and lubrication, and the reputation of the manufacturer helps in selecting the appropriate slewing rings. By making the right choice, the rotating system can operate efficiently, withstand expected loads, maintain precision, and provide reliable performance throughout its lifespan.

China manufacturer Europe Standard Light Series of L Shape Slewing Ring  China manufacturer Europe Standard Light Series of L Shape Slewing Ring
editor by Dream 2024-05-17