Product Description
EBL.20.0844.201-2STPN Small Slewing Bearings In Stock
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 CZPT 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.
product-list-1.html
| 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 |
| Roller Type: | Straight Raceway |
| Material: | 50mn/42CrMo |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How do Slewing Bearings Contribute to the Smooth Rotation of Cranes and other Heavy Machinery?
Slewing bearings play a vital role in ensuring the smooth and efficient rotation of cranes and other heavy machinery that require controlled movement. Their design and functionality are specifically tailored to handle the unique challenges posed by such applications. Here’s how slewing bearings contribute to the smooth rotation of cranes and heavy machinery:
- Load Handling:
Crane operations involve lifting and moving heavy loads. Slewing bearings are designed to carry substantial axial, radial, and moment loads simultaneously. This load-handling capacity allows cranes to lift and transport heavy objects with precision.
- Smooth Rotation:
Slewing bearings provide a smooth interface between the upper structure (superstructure) and the lower structure (substructure) of the machinery. This allows for controlled and precise rotation of the upper structure, enabling cranes to maneuver smoothly during lifting, loading, and unloading operations.
- Efficient Torque Transmission:
During crane rotation, torque generated by the motor is transmitted through the slewing bearing to the upper structure. The bearing’s design ensures efficient torque transmission, minimizing energy losses and facilitating smooth rotation even under heavy loads.
- Low Friction and Wear:
Slewing bearings are engineered to minimize friction and wear. This reduces the energy required for rotation and prevents premature wear that could affect the bearing’s performance and longevity.
- High Stiffness:
Slewing bearings exhibit high stiffness, which contributes to the stability of the machinery during rotation. This stiffness ensures minimal deflection and maintains precise alignment, essential for safe and controlled movement.
- Uniform Load Distribution:
The raceway design of slewing bearings promotes uniform load distribution among rolling elements. This prevents stress concentrations and uneven wear, enhancing the bearing’s durability and contributing to smooth operation.
- Slow and Controlled Movement:
Crane operations often require slow and controlled rotation, especially when positioning heavy loads. Slewing bearings facilitate this type of movement, allowing operators to make precise adjustments.
- Customization for Specific Applications:
Slewing bearings can be customized to match the specific requirements of different crane designs and applications. This customization ensures optimal performance and longevity in various operational scenarios.
In summary, slewing bearings are essential components that enable the smooth and precise rotation of cranes and heavy machinery. Their load-carrying capacity, low friction, high stiffness, and ability to transmit torque efficiently contribute to the reliable and controlled movement required for various lifting and loading operations.
Can you Provide Examples of Industries where Slewing Bearings are Crucial Components?
Slewing bearings play a vital role in various industries due to their ability to handle complex loads and rotational movements. Here are some examples of industries where slewing bearings are crucial components:
- Construction Industry:
Slewing bearings are used in construction machinery such as cranes, excavators, and concrete pumps. They enable the movement of heavy loads, contributing to efficient construction operations.
- Wind Energy Industry:
In wind turbines, slewing bearings allow the rotor blades and nacelle to rotate for optimal wind capture. Their durability and load-bearing capacity are essential for reliable wind turbine operation.
- Mining Industry:
Slewing bearings are employed in mining equipment like stacker-reclaimers and conveyor systems. They facilitate the movement of large quantities of materials, contributing to efficient mining operations.
- Marine Industry:
Slewing bearings are used in ship cranes, davits, and other marine equipment for cargo handling and maintenance tasks. They play a crucial role in maritime operations.
- Aerospace Industry:
Slewing bearings find applications in aerospace equipment like aircraft landing gear systems, satellite antenna deployment mechanisms, and more.
- Manufacturing Industry:
Industrial robots and automation systems utilize slewing bearings for precise rotational movement, enhancing manufacturing processes.
- Material Handling Industry:
Slewing bearings are crucial in material handling equipment such as conveyor systems, container cranes, and automated storage and retrieval systems.
- Energy Industry:
In the energy sector, slewing bearings are used in equipment such as solar trackers, tidal energy platforms, and hydroelectric power plants.
- Medical Industry:
Some medical imaging equipment like CT scanners and MRI machines use slewing bearings for rotational movement, contributing to accurate diagnostics.
- Entertainment Industry:
In theme parks and entertainment venues, slewing bearings are used in amusement rides that require controlled rotational movement.
- Automotive Industry:
Slewing bearings can be found in various automotive applications, such as car turntables and components in heavy-duty vehicles.
These are just a few examples of the diverse industries where slewing bearings are crucial components, contributing to the efficient operation of machinery and equipment.
How do Different Types of Slewing Bearings Vary in Terms of Design and Function?
Different types of slewing bearings vary significantly in terms of their design and function, catering to diverse industrial requirements. Some common variations include:
- Single-Row Ball Slewing Bearings: These bearings consist of a single row of balls positioned between two rings. They are compact and suitable for light to moderate axial and radial loads, making them useful in applications like small cranes and excavators.
- Double-Row Ball Slewing Bearings: These bearings have two rows of balls and higher load-carrying capacity compared to single-row types. They find use in applications requiring higher loads and moment resistance, such as larger cranes and construction machinery.
- Three-Row Roller Slewing Bearings: These bearings use cylindrical rollers to handle heavy axial, radial, and moment loads. They are commonly found in heavy-duty applications like harbor cranes and mining equipment.
- Cross Roller Slewing Bearings: These bearings have cylindrical rollers arranged in a crossed pattern between the inner and outer rings. They offer high stiffness and precision, making them suitable for applications like robotic arms and precision machinery.
- Wire Race Slewing Bearings: These innovative bearings use a thin wire race to support the rolling elements. They are lightweight and compact, often used in medical equipment and aerospace applications.
- Ball-And-Roller Combination Slewing Bearings: These hybrid bearings combine ball and roller elements to achieve a balance between load capacity and precision. They find use in various industrial machines and equipment.
- Gearless Slewing Bearings: In some applications, slewing bearings incorporate no gears or teeth. They are used where external gear reduction is present or precise rotation isn’t required.
- Geared Slewing Bearings: These bearings include internal gears or teeth that allow torque transmission between the inner and outer rings. They are essential in applications requiring controlled rotation, such as cranes and wind turbines.
The choice of slewing bearing type depends on factors like load requirements, available space, rotational precision, and the specific industrial application. Understanding the variations helps engineers select the most suitable bearing for optimal performance.
editor by CX 2024-03-29
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