Product Description

Provide Ability

Offer Ability
2000 Piece/Parts per Month

Port crane 4 level get in touch with slewing ring bearing 011.twenty five.571.001 360x200x60mm

Solution Description

 

Ø  History

l  Headquarter founded in the nineteen eighties as a condition-owned enterprise, reformed to be 1 minimal liability company in 2005.

l  Start to produce slewing ring in 1995, have possess brand name for slewing ring.

l  Four subsidiaries belong to the headquarter: Ring mill plant, Slewing ring plant, Wheel hub plant, ZheJiang Titanhorse Worldwide Trade Dept.

Ø  Company Scale

l  Total region: a hundred,000sq.m

l  Factory: 60,000sq.m

l  Office: 7,000sq.m

l  700 personnel

l  Lines of merchandise: solid raw rings (The raw materials of slewing ring), Slewing rings, Wheel hub

Ø  Production Scale

l  Slewing ring 50,000pcs/month

l  Ring/flange  8,000pcs/thirty day period

l  Wheel hub   20,000pcs/month

Ø  Unique Gain

l  6 collection of slewing ring, the raceway diameter ranges from two hundred-5,000mm

l  Germany 5S normal site administration and QC management engineering specifications

l  ISO9001:2008, OHSAS18001:1999, ISO14001:2004

 

Procedure & Maintanence

 

Ideal lubrication is required for durability of raceway and gear. Lubricating grease improves capacity and service existence of slewing bearing, even though doing work situation, e.g. load, temperature, pace, and vibration, decides lubricant choice.   

Attributes of advised lubricant for slewing bearing:  

²  Lithium foundation grease

²  Minimum viscosity of foundation oil: one hundred fifty mm2/S

²  NLGI consistency grade: two

²  Anti-friction and extreme stress additive 

²  Working temperature: -three hundred Ca+1200 C

²  Four-ball test: Clinkering load STMD 2596 (NT24)>300

²  Maximum NDM benefit (revolving pace x raceway center diameter)

ü  For ball slewing bearing=60000

ü  For pin roller slewing bearing=30000

Lubricating grease compatibility table  

In accordance to our expertise, the lubricating greases detailed in the adhering to desk are compatible with each other and with all components of slewing bearing. Any other grease which is deemed suitable with any of the lubricating greases advised by the Organization is usable. Nonetheless, molybdenum-that contains disulphide MOSis strictly prohibited.

 

Grease for raceway of slewing bearing

 

Lubricating grease designation

 

Grease for gear

 

Aralub HLP2

ARAL

Aralub LFZ1

 

 

Rhus L 474/two

MOTUL/bECHEM

Berulit GA 400

 

 

Energrease LS-EP2

BP

EnergolwRL/GR 154 GS

 

 

Grease LMX

CASTROL

 

 

 

Epexa2/Epexelf2

ELF

Cardrexa DC1

 

 

Beacon EP2

ESSO

Surret Fluid NX

 

 

Mobilux EP2

MOBIL

Mobilgear OGL 007

 

 

Retina EP2-Alvania EPLF2

SHELL

Malleus GL 205

 

 

Multis EP2-Lical EP2

Complete FINA ELF

Ceran Ad

 

             

 

 

Removal of Typical Faults

 

Tough turning of slewing bearing

Every single slewing bearing goes by way of strict inspection and test run ahead of becoming released from plant, so all of them are appropriate merchandise. As the slewing bearing has pre-tightening pressure on its sealing confront and frictional pressure of the sealing encounter ought to be overcome for turning, it truly is regular that particular starting up second is necessary when it is turned.

In situation of clamping stagnation in turning, the adhering to strategy ought to be taken to get rid of the difficulty: 

 

 

Circumstance

 

Result in evaluation

 

Troubleshooting techniques

Rigid idling of new product

The slewing bearing has been saved for extended time (e.g. over a fifty percent year) or the ambient temperature is minimal, which benefits in much less liquidity of the grease within, foremost to rigid operation. This scenario is well known in chilly areas and in winter.  

After pressure is exerted, if it functions effectively with no any irregular sound, it can serve for typical provide, but new grease must be loaded till it is oozed from the seal.

If procedure is accompanied with any irregular sound, verify regardless of whether there is any harm triggered throughout transport or storage and opinions the details to our following-sale services office for a resolution.  

Inflexible  procedure soon after installation

The mounting area of the primary machine does not match effectively with that of the slewing bearing, resulting in that following set up, axial clearance of the slewing bearing cannot compensate for deformation of the slewing bearing, raceway of the slewing bearing is distorted, and the roller moves with trouble in raceway (occasionally with irregular sound).

 

Rework mounting surface area of the major equipment to make it in compliance with the requirements or take care of the floor by filling in plastic or partial washer. If flatness is still unacceptable after completion of floor therapy, try out to exchange for a slewing bearing with more substantial clearance.      

Undesirable equipment engagement is triggered by failure to change equipment backlash in accordance to radial leading point of gear pitch circle (three tooth marked with inexperienced paint). Deformation is induced by compressing the slewing bearing at the top position, ensuing in challenging turning or irregular seem.  

Adjust gear and pinion engagement and equipment backlash once again as necessary. 

Impurities are jammed in the equipment and pinion.  

Examine and be confident that equipment and pinion engagement is cost-free of impurities. 

Inflexible procedure in use

The sealing strip is damaged, resulting in entry of impurities into raceway. 

 

Exchange sealing strip or consider efficient sealing security measures, e.g. installing guard plates.

Failure to lubricate it with sufficient grease periodically according to the maintenance prerequisite, ensuing in abnormal dress in and tear of raceway. 

Lubricate it with enough grease till grease is oozed out from the sealing strip. It is noted that every single oil cup need to be oiled, and procedure ought to be held in oiling, if possible. If use and tear is severe, the slewing bearing ought to be changed. If you continue utilizing it in short time, lubricate it with a lot more sum of grease until grease overflows, so that the scrap iron is discharged as most as feasible.  

Abnormal engagement amongst gear and pinion, with impurities or damaged teeth 

Eliminate impurities (if any) replace the slewing bearing, if there is any damaged tooth. 

Excavator turntable Single-row 4-point get in touch with slewing ring 571.25.571.002

Item Description

 

Model Quantity HS Collection JG/T66-19999
Materials 42CrMo/50Mn
Packaging  Information regular export picket circumstance
Roller Diameters 20mm
Internal  Diameters 450mm
Type Solitary-row 4 get in touch with sequence

 

 

Packaging & shipping and delivery

Packaging Particulars
Carton packing
Port
HangZhou port,HangZhou port ZheJiang port
Photograph Example:

 

Direct time:

Quantity(items) 1 – 100 >100
Lead time (times) thirty To be negotiated

Q1: Are you investing organization or maker ?

A1: We are factory.

 

Q2: How do I start buy?

A2: You can electronic mail or make contact with with our online salesman, then get provide and shipping and delivery price for our get..Right after payment done, we will ship items on time.

 

Q3: What is the advantage about your business?

A3: Our company has skilled staff and specialist generation line.

 

This fall: Why should I select your goods?

A4: Our merchandise are high top quality and lower price.

 

Q5: Any other great services your organization can give?

A5: Yes,we can offer very good following-sale and rapidly shipping and delivery.
Bandrui (HangZhou) Precision Rotating Items Production Co., Ltd. is a expert bearing manufacturer Integrated firm for R&D, manufacturing and soon after-product sales service of rotating elements and rotating technique assembly. Specializing in the production of a variety of types of: break up bearings, metal wire raceway bearings, different V-groove roller bearings, numerous non-common bearings and precision self-aligning roller bearings, cylindrical roller bearings, deep groove ball bearings and other collection of goods.
Our company is positioned in HangZhou, HangZhou, ZheJiang Province. Our goods go over paper producing, metallurgy, textile, shipbuilding, agricultural equipment, chemical sector, mining machinery, engineering equipment, light industrial equipment, automobile production and other fields. The business is actively updating its tools, actively pursuing its technological innovation and actively operating with its employees.
The organization has a crew engaged in R&D and production of rotary merchandise for a prolonged time, and a expert product sales and technological service team to provide perfect soon after-sales and supporting services. Welcome to phone Hanlai to discuss and trade!

US $3.6
/ Piece
|
10 Pieces

(Min. Order)

###

Certification: ISO9001:2008, ISO9001:2000
Feature: Corrosion Resistant, Antimagnetic, Low Temperature, High Temperature, High Speed
Style: Without Outer Ring
Rows Number: Multiple
Load Direction: Radial Bearing
Material: Gcr15&Chrom Steel

###

Samples:
US$ 5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Grease for raceway of slewing bearing

 

Lubricating grease designation

 

Grease for gear

 

Aralub HLP2

ARAL

Aralub LFZ1

 

 

Rhus L 474/2

MOTUL/bECHEM

Berulit GA 400

 

 

Energrease LS-EP2

BP

EnergolwRL/GR 154 GS

 

 

Grease LMX

CASTROL

 

 

 

Epexa2/Epexelf2

ELF

Cardrexa DC1

 

 

Beacon EP2

ESSO

Surret Fluid NX

 

 

Mobilux EP2

MOBIL

Mobilgear OGL 007

 

 

Retina EP2-Alvania EPLF2

SHELL

Malleus GL 205

 

 

Multis EP2-Lical EP2

TOTAL FINA ELF

Ceran AD

 

             

###

 

Case

 

Cause analysis

 

Troubleshooting methods

Inflexible idling of new product

The slewing bearing has been stored for long time (e.g. over a half year) or the ambient temperature is low, which results in less liquidity of the grease inside, leading to inflexible operation. This case is prominent in cold regions and in winter.  

After force is exerted, if it works well without any abnormal sound, it can serve for normal serve, but new grease should be filled until it is oozed from the seal.

If operation is accompanied with any abnormal sound, check whether there is any damage caused during transport or storage and feedback the information to our after-sale service department for a solution.  

Inflexible  operation after installation

The mounting surface of the main machine does not match well with that of the slewing bearing, resulting in that after installation, axial clearance of the slewing bearing can’t compensate for deformation of the slewing bearing, raceway of the slewing bearing is distorted, and the roller moves with difficulty in raceway (sometimes with abnormal sound).

 

Rework mounting surface of the main machine to make it in compliance with the requirements; or treat the surface by filling in plastic or partial washer. If flatness is still unacceptable after completion of surface treatment, try to exchange for a slewing bearing with larger clearance.      

Bad gear engagement is caused by failure to adjust gear backlash according to radial top point of gear pitch circle (three teeth marked with green paint). Deformation is caused by compressing the slewing bearing at the top point, resulting in difficult turning or abnormal sound.  

Adjust gear and pinion engagement and gear backlash again as required. 

Impurities are jammed in the gear and pinion.  

Check and be sure that gear and pinion engagement is free of impurities. 

Inflexible operation in use

The sealing strip is broken, resulting in entry of impurities into raceway. 

 

Replace sealing strip or take effective sealing protection measures, e.g. installing guard plates.

Failure to lubricate it with sufficient grease periodically according to the maintenance requirement, resulting in abnormal wear and tear of raceway. 

Lubricate it with sufficient grease until grease is oozed out from the sealing strip. It’s noted that every oil cup should be oiled, and operation should be kept in oiling, if possible. If wear and tear is serious, the slewing bearing should be replaced. If you continue using it in short time, lubricate it with more amount of grease until grease overflows, so that the scrap iron is discharged as most as possible.  

Abnormal engagement between gear and pinion, with impurities or broken teeth 

Remove impurities (if any); replace the slewing bearing, if there is any broken tooth. 

###

###

Model Number HS Series JG/T66-19999
Material 42CrMo/50Mn
Packaging  Details standard export wooden case
Roller Diameters 20mm
Internal  Diameters 450mm
Type Single-row four contact series

###

Quantity(pieces) 1  100 >100
Lead time (days) 30 To be negotiated
US $3.6
/ Piece
|
10 Pieces

(Min. Order)

###

Certification: ISO9001:2008, ISO9001:2000
Feature: Corrosion Resistant, Antimagnetic, Low Temperature, High Temperature, High Speed
Style: Without Outer Ring
Rows Number: Multiple
Load Direction: Radial Bearing
Material: Gcr15&Chrom Steel

###

Samples:
US$ 5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Grease for raceway of slewing bearing

 

Lubricating grease designation

 

Grease for gear

 

Aralub HLP2

ARAL

Aralub LFZ1

 

 

Rhus L 474/2

MOTUL/bECHEM

Berulit GA 400

 

 

Energrease LS-EP2

BP

EnergolwRL/GR 154 GS

 

 

Grease LMX

CASTROL

 

 

 

Epexa2/Epexelf2

ELF

Cardrexa DC1

 

 

Beacon EP2

ESSO

Surret Fluid NX

 

 

Mobilux EP2

MOBIL

Mobilgear OGL 007

 

 

Retina EP2-Alvania EPLF2

SHELL

Malleus GL 205

 

 

Multis EP2-Lical EP2

TOTAL FINA ELF

Ceran AD

 

             

###

 

Case

 

Cause analysis

 

Troubleshooting methods

Inflexible idling of new product

The slewing bearing has been stored for long time (e.g. over a half year) or the ambient temperature is low, which results in less liquidity of the grease inside, leading to inflexible operation. This case is prominent in cold regions and in winter.  

After force is exerted, if it works well without any abnormal sound, it can serve for normal serve, but new grease should be filled until it is oozed from the seal.

If operation is accompanied with any abnormal sound, check whether there is any damage caused during transport or storage and feedback the information to our after-sale service department for a solution.  

Inflexible  operation after installation

The mounting surface of the main machine does not match well with that of the slewing bearing, resulting in that after installation, axial clearance of the slewing bearing can’t compensate for deformation of the slewing bearing, raceway of the slewing bearing is distorted, and the roller moves with difficulty in raceway (sometimes with abnormal sound).

 

Rework mounting surface of the main machine to make it in compliance with the requirements; or treat the surface by filling in plastic or partial washer. If flatness is still unacceptable after completion of surface treatment, try to exchange for a slewing bearing with larger clearance.      

Bad gear engagement is caused by failure to adjust gear backlash according to radial top point of gear pitch circle (three teeth marked with green paint). Deformation is caused by compressing the slewing bearing at the top point, resulting in difficult turning or abnormal sound.  

Adjust gear and pinion engagement and gear backlash again as required. 

Impurities are jammed in the gear and pinion.  

Check and be sure that gear and pinion engagement is free of impurities. 

Inflexible operation in use

The sealing strip is broken, resulting in entry of impurities into raceway. 

 

Replace sealing strip or take effective sealing protection measures, e.g. installing guard plates.

Failure to lubricate it with sufficient grease periodically according to the maintenance requirement, resulting in abnormal wear and tear of raceway. 

Lubricate it with sufficient grease until grease is oozed out from the sealing strip. It’s noted that every oil cup should be oiled, and operation should be kept in oiling, if possible. If wear and tear is serious, the slewing bearing should be replaced. If you continue using it in short time, lubricate it with more amount of grease until grease overflows, so that the scrap iron is discharged as most as possible.  

Abnormal engagement between gear and pinion, with impurities or broken teeth 

Remove impurities (if any); replace the slewing bearing, if there is any broken tooth. 

###

###

Model Number HS Series JG/T66-19999
Material 42CrMo/50Mn
Packaging  Details standard export wooden case
Roller Diameters 20mm
Internal  Diameters 450mm
Type Single-row four contact series

###

Quantity(pieces) 1  100 >100
Lead time (days) 30 To be negotiated

Materials Used in Bearings

If you’re not familiar with the types of bearings, you may be interested in knowing more about the materials used to manufacture them. Here’s a look at what each type of bearing is made of, how it’s used, and how much they cost. To find the right bearing for your application, it’s important to choose a quality lubricant. The materials used in bearings are determined by their type and applications. Choosing the right lubricant will extend its life, and protect your machine’s parts from damage and premature wear.

Materials used in bearings

Bearings are made from a variety of materials. Stainless steel is a common material used for the components of bearings. It has a higher content of chromium and nickel. When exposed to oxygen, chromium reacts with it to form chromium oxide, which provides a passive film. For higher temperatures, teflon and Viton are also used. These materials offer excellent corrosion resistance and are often preferred by manufacturers for their unique properties.
Stainless steel is another material used in bearings. AISI 440C is a high-carbon stainless steel commonly used in rolling-contact bearings. It is widely used in corrosive environments, especially in applications where corrosion resistance is more important than load capacity. It can also be heat-treated and hardened to 60 HRC, but has lower fatigue life than SAE 52100. Stainless steel bearings may carry a 20-40% price premium, but their superior performance is worth the extra money.
Graphite and molybdenum disulfide are two of the most common materials used in bearings. While graphite is a popular material in bearings, it has very poor corrosion resistance and is unsuitable for applications where oil or grease is required. Graphite-based composite materials are another option. They combine the benefits of both graphite and ceramic materials. A variety of proprietary materials have been developed for high-temperature use, such as graphite and MoS2.
Wood bearings have been around for centuries. The oldest ones used wood and Lignum Vitae. These materials were lightweight, but they were incredibly strong and durable. Wood bearings were also lubricated with animal fats. During the 1700s, iron bearings were a popular choice. In 1839, Isaac Babbitt invented an alloy containing hard metal crystals suspended in a softer metal. It is considered a metal matrix composite.

Applications of bearings

bearing
Bearings are used in many different industries and systems to help facilitate rotation. The metal surfaces in the bearings support the weight of the load, which drives the rotation of the unit. Not all loads apply the same amount of force to bearings, however. Thrust and radial loads act in distinctly different ways. To better understand the different uses of bearings, let’s examine the various types of bearings. These versatile devices are essential for many industries, from automobiles to ships and from construction to industrial processes.
Cylindrical roller bearings are designed to support heavy loads. Their cylindrical rolling element distributes the load over a larger area. They are not, however, suited to handling thrust loads. Needle bearings, on the other hand, use small diameter cylinders and can fit into tighter spaces. The advantages of these types of bearings are numerous, and many leading producers are now leveraging the Industrial Internet of Things (IIoT) to develop connected smart bearings.
As a power generation industry, bearings play an essential role. From turbines to compressors, from generators to pumps, bearings are essential components of equipment. In addition to bearings, these components help move the equipment, so they can work properly. Typically, these components use ball bearings, although some roller bearings are used as well. In addition to being efficient and durable, these types of bearings also tend to be built to meet stringent internal clearance requirements and cage design requirements.
In addition to bearings for linear motion, bearings can also bear the weight of a rotary part. Depending on the application, they can be designed to minimize friction between moving parts. By constraining relative motion, bearings are used to reduce friction within a given application. The best-designed bearings minimize friction in a given application. If you’re in the market for a new bearing, NRB Industrial Bearings Limited is an excellent source to begin your search.

Types of bearings

bearing
The type of bearings you choose will have a significant impact on the performance of your machinery. Using the right bearings can increase efficiency, accuracy, and service intervals, and even reduce the cost of purchasing and operating machinery. There are several different types of bearings to choose from, including ball bearings and flexure bearings. Some types use a fluid to lubricate their surfaces, while others do not.
Plain bearings are the most common type of bearing, and are used for a variety of applications. Their cylindrical design allows for a relatively smooth movement. Often made of copper or other copper alloy, they have low coefficients of friction and are commonly used in the construction industry. Some types of plain bearings are also available with a gudgeon pin, which connects a piston to a connecting rod in a diesel engine.
Magnetic bearings are the newest type of bearing. They use permanent magnets to create a magnetic field around the shaft without requiring any power. These are difficult to design, and are still in the early stages of development. Electromagnets, on the other hand, require no power but can perform very high-precision positioning. They can be extremely durable and have a long service life. They are also lightweight and easy to repair.
Another type of bearing is needle roller. These are made of thin, long, and slender cylinders that are used in a variety of applications. Their slender size is ideal for a space-constrained application, and their small profile allows them to fit in tight places. These types of bearings are often used in automotive applications, bar stools, and camera panning devices. They have several advantages over ball bearings, including the ability to handle heavy axial loads.

Cost of bearings

A wide range of factors affect the cost of aerospace bearings, including the bearing material and its volatility. Manufacturers typically use high-grade steel for aircraft bearings, which are highly affected by fluctuations in the steel price. Government policies also play a part in the variation in trade price. The implementation of COVID-19 has changed the market dynamics, creating an uncertain outlook for supply and demand of aerospace bearings. New trade norms and transportation restrictions are expected to hamper the growth of this industry.
Demand for aerospace bearings is largely driven by aircraft manufacturers. In North America, aircraft manufacturers must meet extremely high standards of weight, performance, and quality. They also must be lightweight and cost-effective. This has resulted in a rising cost of aerospace bearings. The market for aerospace bearings is expected to grow at the highest CAGR over the next few years, driven by increasing investments in defense and aerospace infrastructure across Asia-Pacific.
Hub assemblies are also expensive. A wheel hub will cost between $400 and $500 for one set of bearings. In addition to this, the speed sensor will be included. The average cost of wheel bearings is between $400 and $500 for one side, including labor. But this price range is much lower if the bearing is a replacement of an entire wheel assembly. It is still worth noting that wheel hub bearings can be purchased separately for a lower price.
Replacement of one or two wheel bearings will depend on the model and year of the vehicle. For a small car, one rear wheel bearing can cost between $190 and $225, whereas two front wheel hubs can cost upwards of $1,000. Labor and parts prices will vary by location, and labor costs may also be covered under some warranty plans. If you decide to have it done yourself, be sure to ask multiple shops for estimates.

Inspection of bearings

bearing
To maintain bearing performance and prevent accidents, periodic inspections are essential. In addition to ensuring reliability, these inspections improve productivity and efficiency. Regular maintenance includes disassembly inspection, replenishment of lubricant and monitoring operation status. Here are some common ways to perform the necessary inspections. Keep reading to learn how to maintain bearings. After disassembly, you must clean the components thoroughly. Ensure that the bearings are free of burrs, debris, and corrosion.
Ultrasound technology is an excellent tool for monitoring slow-speed bearings. Most ultrasound instruments offer wide-ranging sensitivity and frequency tuning. Ultrasound can also be used to monitor bearing sound. Ultra-slow bearings are usually large and greased with high-viscosity lubricant. Crackling sounds indicate deformity. You can also listen for abnormal noise by plugging a vibration analyzer into the machine. Once the machine shows abnormal noise, schedule additional inspections.
Ultrasonic inspection involves using an ultrasound transducer to measure the amplitude of sound from a bearing. It is effective in early warnings of bearing failure and prevents over-lubrication. Ultrasound inspection of bearings is a cost-effective solution for early diagnosis of bearing problems. In addition to being a reliable tool, ultrasonic testing is digital and easy to implement. The following are some of the advantages of ultrasonic bearing inspection.
Dynamic quality evaluation involves the use of a special fixture for measuring bearing deformations under low shaft speed and light radial load. The size of the fixture influences the value of the deformations. A fixture should be sized between the diameter of the sensor and the roller to ensure maximum precision. The outer deformation signal is more sensitive with a larger sensor diameter. A vibration-acceleration sensor is used for the contrast test.

 drive shaft bearing drive shaft bearing
editor by czh 2023-02-03

Slewing bearings

As one of the slewing bearings manufacturers, suppliers, and exporters of mechanical products, We offer slewing bearings and many other products.

Please get in touch with us for details.

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