Product Description

Supply Ability

Supply Ability
2000 Piece/Pieces per Month

Port crane 4 point contact slewing ring bearing 011.25.571.001 360x200x60mm

Product Description

 

Ø  History

l  Headquarter founded in the 1980s as a state-owned enterprise, reformed to be 1 limited liability company in 2005.

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

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

Ø  Company Scale

l  Total area: 100,000sq.m

l  Factory: 60,000sq.m

l  Office: 7,000sq.m

l  700 employees

l  Lines of product: forged raw rings (The raw material of slewing ring), Slewing rings, Wheel hub

Ø  Production Scale

l  Slewing ring 50,000pcs/month

l  Ring/flange  8,000pcs/month

l  Wheel hub   20,000pcs/month

Ø  Unique Advantage

l  6 series of slewing ring, the raceway diameter ranges from 200-5,000mm

l  Germany 5S standard site management and QC management engineering standards

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

 

Operation & Maintanence

 

Suitable lubrication is necessary for durability of raceway and gear. Lubricating grease improves capability and service life of slewing bearing, while working condition, e.g. load, temperature, speed, and vibration, determines lubricant selection.   

Characteristics of recommended lubricant for slewing bearing:  

²  Lithium base grease

²  Minimum viscosity of base oil: 150 mm2/S

²  NLGI consistency grade: 2

²  Anti-friction and extreme pressure additive 

²  Working temperature: -300 Ca+1200 C

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

²  Maximum NDM value (revolving speed x raceway center diameter)

ü  For ball slewing bearing=60000

ü  For pin roller slewing bearing=30000

Lubricating grease compatibility table  

According to our experience, the lubricating greases listed in the following table are compatible with each other and with all parts of slewing bearing. Any other grease which is deemed compatible with any of the lubricating greases recommended by the Company is usable. However, molybdenum-containing disulphide MOSis strictly prohibited.

 

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

 

             

 

 

Removal of Common Faults

 

Difficult turning of slewing bearing

Every slewing bearing goes through strict inspection and test run before being released from plant, so all of them are acceptable products. As the slewing bearing has pre-tightening force on its sealing face and frictional force of the sealing face should be overcome for turning, it’s normal that certain starting moment is needed when it is turned.

In case of clamping stagnation in turning, the following method should be taken to remove the trouble: 

 

 

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. 

Excavator turntable Single-row four-point contact slewing ring 571.25.571.002

Product Description

 

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 4 contact series

 

 

Packaging & delivery

Packaging Details
Carton packing
Port
HangZhou port,HangZhou port ZheJiang port
Picture Example:

 

Lead time:

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

Q1: Are you trading company or manufacturer ?

A1: We are factory.

 

Q2: How do I start purchase?

A2: You can email or contact with our online salesman, then get offer and shipping cost for our order..After payment done, we will ship goods on time.

 

Q3: What is the advantage about your company?

A3: Our company has professional team and professional production line.

 

Q4: Why should I choose your products?

A4: Our products are high quality and low price.

 

Q5: Any other good service your company can provide?

A5: Yes,we can provide good after-sale and fast delivery.
Bandrui (HangZhou) Precision Rotating Products Manufacturing Co., Ltd. is a professional bearing manufacturer Integrated company for R&D, manufacturing and after-sales service of rotating parts and rotating system assembly. Specializing in the production of various types of: split bearings, steel wire raceway bearings, various V-groove roller bearings, various non-standard bearings and precision self-aligning roller bearings, cylindrical roller bearings, deep groove ball bearings and other series of products.
Our company is located in HangZhou, HangZhou, ZheJiang Province. Our products cover paper making, metallurgy, textile, shipbuilding, agricultural machinery, chemical industry, mining machinery, engineering machinery, light industrial machinery, automobile manufacturing and other fields. The company is actively updating its equipment, actively pursuing its technology and actively working with its staff.
The company has a team engaged in R&D and manufacturing of rotary products for a long time, and a professional sales and technical service team to provide perfect after-sales and supporting services. Welcome to call Hanlai to discuss and exchange!

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)

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Request Sample

Customization:
Available

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Customized Request

bushing

What is a bushing?

What is a bushing? Basically, bushings are spherical or spherical bearings for machines with sliding or rotating shaft assemblies. Due to their excellent load-carrying capacity and anti-friction properties, these bushings are used in almost all industrial applications. This makes them useful in industries such as construction, mining, agriculture, transportation, hydropower, food processing and material handling.

Shell information

The demand for bushings is closely related to the global transformer market. Growing renewable energy sources and high replacement rates of aging grid infrastructure are driving the global demand for transformer bushings. Increased urbanization is another factor driving the demand for transformer bushings. Among global regions, Asia Pacific is the largest market for medium voltage transformer bushings. The following section provides a detailed analysis of the market.
Bulk-type bushings are used for lower voltage ratings and consist of a center conductor stud or tube and an insulator housing. They are available in dry or oil filled versions, and their oil content is shared with the transformer main tank. However, the trend is slowly turning towards RIP bushings. Regardless of how different types of bushings are used, it is important to understand the difference between them.
A recent CZPT survey indicated that bushings account for 17% of all transformer failures. Among them, 30% caused fire accidents and 10% caused explosions. This is not a small risk, especially for such important electrical components as transformers. Because casing is so important, utilities are increasingly looking to preventative maintenance. However, this requires continuous monitoring of the bushing and its insulation. There are many benefits to using online condition monitoring.
One of the main benefits of locating and replacing faulty bushings is improved operability and safety. If you notice that your car is unstable in the corners, your bushings are worn. Anti-roll bar bushings can also be a sign of bushing damage. Do not ignore these warning signs as they can have dangerous consequences. To avoid these potential problems, make sure to get your vehicle serviced as soon as you notice any of these symptoms.
Be sure to park your vehicle on a level surface before you start changing your car bushings. You may need to unlock the hood latch and apply the brakes before continuing. Then, open the valve cover. This will allow you to see the engine area and bushings. You should also check that the wheels are not moving and avoid placing sharp objects in the engine bay. If you have time, open the hood and if you can see the bushings, turn on the headlights.
bushing

type

There are various types of bushings, each serving a different purpose. Oil-filled types are the most common and are designed for vertical installations. On the other hand, the embedded ferrule can accommodate the connection to the wire leads in the lower end of the ferrule. This feature significantly reduces the length of the sump end of the casing, but also adds additional complexity and cost.
There are two basic types of bushings. The first is a solid pour and the second is a capacitive graded variety. Solid cast bushings are typically used for low voltage transformer windings, while gas insulated bushings are insulated with pressurized gas. Gas-insulated bushings are also used in SF6 circuit breakers. If you are in the market for a new bushing, be sure to consider its cantilever strength and design.
Electrical bushings are an important part of various electrical equipment. They help carry high-voltage current through the enclosure and act as an insulator between a live conductor and a metal body at ground potential. Bulk-type bushings consist of a central conductive rod (usually copper or aluminum) and an insulator (silicone rubber compound or composite resin) surrounding the rod.
Transformers require transformer bushings. The construction and materials used in the bushing play a key role in the durability and longevity of the transformer. Transformers with weak bushings can fail, causing extensive damage. Moisture or voids can cause insulation breakdown, resulting in extensive electrical damage. Appropriate materials and optimized construction can reduce electric field stress and extend the life of the bushing.
Capacitor grading bushings are more expensive and are used in almost all high voltage systems. They use a conductive layer within the insulating layer between the center conductor and the insulator. Different manufacturers use different materials to produce these bushings. Earlier, capacitor grading bushings were made of concentric ceramic cylinders with metallized surfaces. They are also made from laminated cardboard tubes with conductive layers.

Function

A bushing is a support member that performs its function by acting as a washer and reducing noise and vibration. Bushings are used in valve covers and are made of corrosion-resistant materials to perform these functions. These products can be found in all types of machinery from cars to airplanes. Below are some common uses for bushings. Read on to discover more. Here are some of the most important features of the shell.
Electrical bushings transmit electricity. They can be used in circuit breakers, transformers, power capacitors and shunt reactors. The conductors of the bushing can be built directly into the bushing or through the bushing. Both current and voltage represent electricity. The bushing must have insulation capable of withstanding the voltage and its current-carrying conductors must be capable of carrying the rated current without overheating the adjacent insulation.
The bushing wraps around the stem, which is a relatively simple replacement part. It is a hardened part that prevents leaks and improves sealing. Plus, its low-cost replacement makes it a very easy-to-machine part. Bushings are also used in valves for guiding purposes. These two features make bushings an important part of many machines and applications. So, learn more about them.
Copper and brass are commonly used bushing materials. They have high compressive strength and high surface pressure. This material is suitable for bearings in low speed situations and heavy duty applications. Copper and brass are the most common types of casings, and they are both made in China. They are all relatively inexpensive and are available in a variety of materials and sizes. If you are considering purchasing a casing, keep in mind that it must meet national standards.
bushing

cost

Whether you’re looking for a replacement bushing for your rear suspension or just need to replace the fork, you have a few different options. The two main types of bushings are coated and uncoated. If you want to save money on bushing replacements, you should consider getting a cheaper lower fork. Whether you’re replacing bushings to improve ride quality or prevent damage to your wheel loader, you’ll find a bushing replacement option that fits your budget.
While most cars are compatible with bushings, some iconic parts from premium brands like BMW and Mercedes require special tools to replace. If you are not confident in your mechanical abilities, consider hiring a mechanic to do it. Mechanical replacement bushings typically range from $200 to $500. If you’re comfortable with mechanics and have some mechanical knowledge, you can save money by trying the job yourself. For example, control arm bushings range in price from $20 to $80. It is important to check the alignment after replacing the bushing to avoid further damage.
Control arm bushing replacements are usually relatively inexpensive, but you may need to replace several at the same time. You should check the prices of several mechanics before making a decision. You can easily save between $50 and $100 by comparing quotes. Plus, you’ll save a lot of money by finding the right mechanic for the job. You can also use an online comparison tool to compare prices. You can find a mechanic that suits your needs at an affordable price.
Control arm bushings are also an inexpensive way to replace parts of a car’s front or rear suspension. Typically, control arm bushings are made of two metal cylinders covered with a thick layer of rubber. They wear out due to accidents, potholes and off-roading. They are mounted with a bolt that goes through the inner barrel. It is important to replace these bushings as often as needed to improve operation.

China supplier Factory Supply Slewing Turntable Bearing for Tadano Tmz   bearing driver kitChina supplier Factory Supply Slewing Turntable Bearing for Tadano Tmz   bearing driver kit
editor by CX 2023-10-22