Lymc Rks. 060.20.0944 Slewing Bearing for Wind Turbine Blades1016*872*56mm

Product Description

LYMC Rks.060.20.0944 Slewing Bearing for wind turbine blades 1016*872*56mm

Product Description

1. Overview & Product Definition

The RKS.0 series represents the purest form of a Four-Point Contact Ball Bearing without any integrated gearing. This design provides a compact, single-row slewing ring that is exceptionally versatile for applications requiring support for complex load combinations where torque transmission is handled by a separate, dedicated mechanism.

2. Key Design Features

• Pure Four-Point Contact Design: This bearing leverages the core principle of four-point contact ball geometry. Each ball contacts the inner and outer rings at four points, enabling a single bearing row to support combined axial and radial loads, as well as tilting moments, from both directions.

• Smooth Rings (Ungeared): Both the inner and outer rings are manufactured without teeth, featuring smooth, finished surfaces. This allows for maximum design flexibility in mounting and driving the system.

• Mounting Holes: The rings are typically equipped with threaded holes for fast and secure mounting to adjacent structures, simplifying assembly and enhancing connection rigidity.

• High-Carbon Chromium Steel: Constructed from vacuum-degassed, high-carbon chromium steel, the RKS.0 series ensures high static and dynamic load capacity, excellent wear resistance, and long operational life.

• Optimized Raceway Geometry: The raceways are precision-ground to maximize load distribution and minimize friction, ensuring smooth operation and consistent performance.

3. Primary Advantages & Benefits

• Maximum Design Flexibility: The absence of integral gearing gives design engineers complete freedom to implement the most suitable drive method for their application, such as direct drive motors, hydraulic motors, or pinion drives on a separate component.

• Compact and Space-Saving: As a single-row bearing, it offers the most compact cross-section for a given load capacity, helping to minimize the overall size and weight of the machinery.

• High Load Capacity: Excels at managing complex combinations of axial, radial, and moment loads, making it a robust and reliable solution for a wide array of applications.

• Simplified Integration: The smooth rings and standardized mounting holes facilitate straightforward integration into machinery frames and housings.

• Cost-Effective Solution: By separating the bearing and drive functions, it can be a more economical choice for applications where a custom drive solution is already preferred or required.

4. Typical Applications

The  RKS.0 series is widely used in applications that require a compact slewing solution without an integrated drive mechanism:

• Turntables and Rotating Platforms: For material handling, assembly lines, and display systems.

• Industrial Robots: Used in the base and  where the rotation is provided by a servo motor or other actuator directly coupled to the bearing.

• Precision Rotary Stages: In machine tools and measuring equipment.

• Aerospace Actuators: For flight control surfaces and other mechanisms requiring precise angular movement.

• Medical Equipment: Including rotating components within imaging and surgical devices.

• Any application where a direct drive, hydraulic motor, or custom drive solution is implemented.

5. Technical Specifications (General)

• Bearing Type: Four-Point Contact Ball Bearing (Ungeared)

• Gearing: None

• Size Range: The RKS.0 series covers a wide range of diameters and cross-sections. (Consult the official RKS catalog for precise dimensions and part numbers, e.g., RKS 50-0).

• Load Capacity: High capacity for combined loads. Exact dynamic and static load ratings are provided in technical datasheets.

• Lubrication: Requires initial lubrication and periodic re-lubrication through standard grease fittings.

• Sealing: Often supplied with integrated seals to protect the raceway from contaminants.

6. Selection and Mounting Considerations

• Load Analysis: A thorough calculation of all acting loads (axial, radial, moment) is essential for correct bearing selection.

• Drive System Design: The engineer must design a separate drive system (e.g., motor, pinion, actuator) to provide the rotational force.

• Structural Rigidity: The supporting structures must be rigid to prevent deformation that could induce unwanted loads and reduce bearing life.

• Mounting: Ensure surfaces are flat, clean, and machined to the recommended tolerances. Follow the specified torque sequence and values for mounting bolts.
  

  Main dimensions			Fixing holes					Ni	Mass	Basic load ratin                        curves*					Designation
  De	Dm	Di	Fe	he	Ne	Fi	hi			axial  dyn.C	axial   stat.Co	Fig  N°	raceways (r )	bolt   ( b)
  mm	mm	mm	mm	mm		mm	mm		kg	kN	kN
  486	414	342	460	14	24	368	14	24	29	169	560	E	1r	1b	RKS.060.20.0414
  616	544	472	590	14	32	498	14	32	37	188	740	E	2r	2b	RKS.060.20.0544
  716	644	572	690	14	36	598	14	36	44	200	880	E	3r	3b	RKS.060.20.0644
  816	744	672	790	14	40	698	14	40	52	211	1010	E	4r	4b	RKS.060.20.0744
  916	844	772	890	14	40	798	14	40	60	222	1150	E	5r	5b	RKS.060.20.0844
  1016	944	872	990	14	44	898	14	44	67	231	1280	E	6r	6b	RKS.060.20.0944
  1166	1094	1022	1140	14	48	1048	14	48	77	244	1490	E	7r	7b	RKS.060.20.1094
  1289	1204	1119	1257	16	45	1151	16	45	121	371	1943	F	8r	8b	RKS.060.25.1204
  1399	1314	1229	1367	16	50	1261	16	50	132	383	2124	F	9r	9b	RKS.060.25.1314
  1509	1424	1339	1477	16	54	1371	16	54	143	395	2304	F	10r	10b	RKS.060.25.1424
  1619	1534	1449	1587	16	60	1481	16	60	154	406	2485	F	11r	11b	RKS.060.25.1534
  1752	1644	1536	1708	22	54	1580	22	54	209	416	2666	F	12r	12b	RKS.060.25.1644
  1862	1754	1646	1818	2	60	1690	2	60	222	424	2847	F	13r	13b	RKS.060.25.1754
  2012	1904	1796	1968		64	1840		64	241	571	4048	F	14r	14b	RKS.060.30.1904

 

Related Slewing Bearing

Single row four-point contact ball slewing bearings are a vital component in various mechanical systems, particularly known for their ability to support axial, radial, and moment loads simultaneously. This article delves into the key advantages and distinctive features of these bearings, highlighting their significance in modern engineering applications.

Single row four-point contact ball slewing bearings stand out due to their impressive load capacities, compact design, and versatility. Their advanced characteristics make them an essential component in numerous industrial applications, enabling engineers to design more efficient and reliable machinery. As technology advances, the role of these bearings continues to grow, proving essential for enhancing operational efficiency and performance across various sectors.
 

Main dimensions			Fixing holes						Mass	Basic load ratin			curves*		Designation
De	Dm	Di	Fe	he	Ne	Fi	hi	Ni		axial   dyn.C	axial   stat.Co	Fig  N°	raceways (r )	bolt   ( b)
mm	mm	mm	mm	mm		mm	mm		kg	kN	kN
486	414	342	460	14	24	368	14	24	29	169	560	E	1r	1b	RKS.060.20.0414
616	544	472	590	14	32	498	14	32	37	188	740	E	2r	2b	RKS.060.20.0544
716	644	572	690	14	36	598	14	36	44	200	880	E	3r	3b	RKS.060.20.0644
816	744	672	790	14	40	698	14	40	52	211	1010	E	4r	4b	RKS.060.20.0744
916	844	772	890	14	40	798	14	40	60	222	1150	E	5r	5b	RKS.060.20.0844
1016	944	872	990	14	44	898	14	44	67	231	1280	E	6r	6b	RKS.060.20.0944
1166	1094	1022	1140	14	48	1048	14	48	77	244	1490	E	7r	7b	RKS.060.20.1094
1289	1204	1119	1257	16	45	1151	16	45	121	371	1943	F	8r	8b	RKS.060.25.1204
1399	1314	1229	1367	16	50	1261	16	50	132	383	2124	F	9r	9b	RKS.060.25.1314
1509	1424	1339	1477	16	54	1371	16	54	143	395	2304	F	10r	10b	RKS.060.25.1424
1619	1534	1449	1587	16	60	1481	16	60	154	406	2485	F	11r	11b	RKS.060.25.1534
1752	1644	1536	1708	22	54	1580	22	54	209	416	2666	F	12r	12b	RKS.060.25.1644
1862	1754	1646	1818	22	60	1690	22	60	222	424	2847	F	13r	13b	RKS.060.25.1754
2012	1904	1796	1968	22	64	1840	22	64	241	571	4048	F	14r	14b	RKS.060.30.1904

 

Advantage of single row four point slewing bearing

1. High Load Capacity: The design allows for the distribution of forces across four contact points, which enhances the load-carrying capacity. This makes them ideal for applications that require robust support under dynamic loads.

2. Compact Design: Due to their geometry and load distribution capabilities, single row four-point contact ball bearings require less space than other slewing ring types. This compactness is beneficial in applications with limited installation space.

3. Reduced Friction: These bearings provide a smooth operational experience due to the rolling motion of the balls, which minimizes friction. This feature results in lower energy consumption and extended service life.

4. Versatility:They can accommodate a range of applications, including cranes, excavators, and various machinery, due to their adaptability to different load conditions and orientations.

Characteristics:

1. Precision Engineering:Constructed with precision, these bearings ensure high accuracy and stability in movement. This precision is critical in applications where positional accuracy is paramount, such as in robotics and aerospace.

2.Durability: Made from high-quality materials, these bearings are designed to withstand harsh environmental conditions. They exhibit excellent wear resistance, making them suitable for both outdoor and indoor applications.

3.Easy Installation and Maintenance: The straightforward design of single row four-point contact ball slewing bearings simplifies installation and maintenance processes. This aspect not only saves time but also reduces costs associated with equipment downtime.

4. Customization Options: Manufacturers can tailor these bearings to meet specific application requirements, including varying diameters, load capacities, and coatings. This customization ensures that engineers can achieve optimal performance in their designs.



Other Related Slewing Bearing
 

Single row cross roller slewing bearing
Composed of two or three 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 one of the four 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 Process

 

Product Process

SLEWING BEARING RINGS

Rings are mainly made of 50Mn carbon steel or alloy steels such as 42CrMo4 and the choice of material depends on the required mechanical properties. Alloy steels are often used for heavy-duty applications. Their structural characteristics mean that heat treatments are more effective and greater surface hardness can be obtained than with carbon steels. Stainless steels such as AISI420 or AISI440C can be used for applications where corrosion resistance is required.

RACEWAYS

The raceways are heat-treated by induction in order to achieve a maximum surface hardness of 62 HRC for carbon or alloy steels, or 58 HRC for stainless steels. The hardening depth can vary depending on the type of steel. Hardening treatment is essential to allow the slewing coupling to support the heavy-duty loads it is exposed to in its intended application.

ROTATING ELEMENTS

The rotating elements used in slewing bearings may be balls or cylindrical rollers; both are typically made of 100Cr6 steel but other materials such as ceramic (zirconium oxide ZrO2 or silicon nitride Si3N4) or stainless steel (AISI440C) can be used. Rolling elements with different materials, sizes and precision grades are selected depending on the desired results.

CAGES OR SPACERS

Slewing bearing clearance plays a crucial role and is defined and optimised according to the application and performance to be achieved.
Cages or spacers made of different materials can be used to separate rolling elements, balls or rollers, depending on the loads and speeds required by the specific application.

PROTECTIONS

Special sliding seals are fitted between the inner and outer ring to protect the slewing bearing against the ingress of debris, dust or water particles that could affect its operation. The material used for seals is typically NBR rubber, but different materials can be chosen for specific applications.

LUBRICANT

The lubricant is another very important factor to ensure effective operation of the base bearing. The type of lubricant, quantity, quality, lubrication intervals, number and position of greasing points are determined according to the performance required of the slewing bearing and any specific customer requirements.

GEARED RINGS

Slewing bearing rings can be spur-gear or, more rarely, helical-gear. The gear module is sized and selected according to the application requirements.
Typically, the gearing is soft, i.e. untreated - the maximum hardness of untreated gears is 30 HRC for 42CrMo4. When service conditions require it, the gear surface can be induction-hardened to achieve a surface hardness of 60 HRC. Gear hardening is required when at least one of the following variables must be satisfied:

• high rolling torque
•  
• high rotating speed
•  
• unfavourable environmental conditions, presence of abrasive elements
•  
• maximum tooth lifetime

The experience gained by LYMC Bearing allows us to design slewing bearings to specific customer needs. You can get the right product for your machines or systems without having to compromise with an off-the-shelf product.

Application

Application:

- Excavators - Drilling rigs - Mining Equipments - Cranes   -Offshore Equipments  - Vehicles  - Machine Tools  - Wind Turbines

Company Profile

About Us:
Luoyang 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.

 

After Sales Service

 

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, 100% in advance. 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.