Solution Description

Source Capability

Offer Capacity
2000 Piece/Parts for every Month
 

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

Merchandise Description

 

Ø  History

l  Headquarter launched in the eighties as a point out-owned enterprise, reformed to be 1 minimal liability business in 2005.

l  Start to make slewing ring in 1995, have personal brand identify for slewing ring.

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

Ø  Company Scale

l  Total area: a hundred,000sq.m

l  Factory: sixty,000sq.m

l  Office: 7,000sq.m

l  700 workers

l  Lines of solution: cast raw rings (The uncooked material of slewing ring), Slewing rings, Wheel hub

Ø  Production Scale

l  Slewing ring 50,000pcs/thirty day period

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

l  Wheel hub   twenty,000pcs/thirty day period

Ø  Unique Advantage

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

l  Germany 5S common web site management and QC management engineering expectations

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

 

Procedure & Maintanence

 

Suitable lubrication is required for longevity of raceway and gear. Lubricating grease enhances ability and provider daily life of slewing bearing, even though operating problem, e.g. load, temperature, velocity, and vibration, decides lubricant selection.   

Traits of suggested lubricant for slewing bearing:  

²  Lithium base grease

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

²  NLGI regularity grade: two

²  Anti-friction and severe stress additive 

²  Working temperature: -300 Ca+1200 C

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

²  Maximum NDM price (revolving velocity x raceway heart diameter)

ü  For ball slewing bearing=60000

ü  For pin roller slewing bearing=30000

Lubricating grease compatibility table  

In accordance to our experience, the lubricating greases outlined in the adhering to table are appropriate with each and every other and with all elements of slewing bearing. Any other grease which is deemed compatible with any of the lubricating greases advisable by the Organization is usable. Even so, 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 474/2

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 Advert

 

             

 

 

Removing of Common Faults

 

Tough turning of slewing bearing

Every single slewing bearing goes through rigid inspection and test operate before becoming unveiled from plant, so all of them are acceptable goods. As the slewing bearing has pre-tightening force on its sealing confront and frictional power of the sealing experience ought to be overcome for turning, it is typical that specified commencing second is needed when it is turned.

In circumstance of clamping stagnation in turning, the pursuing method should be taken to eliminate the problems: 

 

 

Situation

 

Cause investigation

 

Troubleshooting strategies

Inflexible idling of new item

The slewing bearing has been saved for prolonged time (e.g. in excess of a fifty percent calendar year) or the ambient temperature is reduced, which final results in less liquidity of the grease within, foremost to rigid procedure. This case is notable in chilly regions and in wintertime.  

Soon after power is exerted, if it performs nicely with out any abnormal sound, it can serve for normal serve, but new grease must be stuffed until it is oozed from the seal.

If procedure is accompanied with any irregular audio, check whether or not there is any harm triggered during transportation or storage and opinions the details to our right after-sale provider department for a resolution.  

Inflexible  operation following set up

The mounting surface of the major machine does not match nicely with that of the slewing bearing, resulting in that following set up, axial clearance of the slewing bearing can not compensate for deformation of the slewing bearing, raceway of the slewing bearing is distorted, and the roller moves with trouble in raceway (occasionally with abnormal seem).

 

Rework mounting floor of the principal device to make it in compliance with the needs or take care of the floor by filling in plastic or partial washer. If flatness is even now unacceptable following completion of area therapy, try out to trade for a slewing bearing with larger clearance.      

Undesirable gear engagement is caused by failure to modify gear backlash according to radial leading point of equipment pitch circle (three tooth marked with green paint). Deformation is induced by compressing the slewing bearing at the leading stage, resulting in tough turning or irregular audio.  

Alter equipment and pinion engagement and equipment backlash yet again as required. 

Impurities are jammed in the gear and pinion.  

Examine and be positive that equipment and pinion engagement is totally free of impurities. 

Inflexible operation in use

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

 

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

Failure to lubricate it with enough grease periodically in accordance to the routine maintenance necessity, ensuing in abnormal put on and tear of raceway. 

Lubricate it with adequate grease till grease is oozed out from the sealing strip. It really is noted that each oil cup ought to be oiled, and operation should be kept in oiling, if possible. If wear and tear is critical, the slewing bearing ought to be replaced. If you proceed employing it in brief time, lubricate it with much more amount of grease until grease overflows, so that the scrap iron is discharged as most as attainable.  

Abnormal engagement among equipment and pinion, with impurities or broken teeth 

Get rid of impurities (if any) exchange the slewing bearing, if there is any damaged tooth. 

Excavator turntable Single-row four-stage get in touch with slewing ring 571.twenty five.571.002

Product Description

 

Model Quantity HS Series JG/T66-19999
Materials 42CrMo/50Mn
Packaging  Information common export wood situation
Roller Diameters 20mm
Internal  Diameters 450mm
Kind Solitary-row 4 speak to series

 

 

Packaging & delivery

Packaging Particulars
Carton packing
Port
HangZhou port,HangZhou port ZheJiang port
Image Illustration:

 

Guide time:

Quantity(pieces) 1 – 100 >100
Direct time (times) thirty To be negotiated

Q1: Are you investing firm or company ?

A1: We are factory.

 

Q2: How do I start off purchase?

A2: You can e mail or make contact with with our on-line salesman, then get offer you and transport price for our buy..Soon after payment completed, we will ship products on time.

 

Q3: What is the gain about your firm?

A3: Our company has expert staff and specialist manufacturing line.

 

This fall: Why should I pick your products?

A4: Our items are substantial good quality and low value.

 

Q5: Any other good support your company can supply?

A5: Sure,we can provide very good soon after-sale and rapidly shipping and delivery.
Bandrui (HangZhou) Precision Rotating Items Producing Co., Ltd. is a skilled bearing producer Built-in business for R&D, producing and right after-income service of rotating components and rotating method assembly. Specializing in the manufacturing of various kinds 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 sequence of products.
Our company is situated in HangZhou, HangZhou, ZheJiang Province. Our items cover paper producing, metallurgy, textile, shipbuilding, agricultural equipment, chemical business, mining machinery, engineering machinery, mild industrial machinery, car manufacturing and other fields. The company is actively updating its equipment, actively pursuing its engineering and actively functioning with its workers.
The organization has a staff engaged in R&D and manufacturing of rotary merchandise for a long time, and a expert revenue and complex services crew to give excellent following-income and supporting companies. Welcome to phone Hanlai to talk about 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

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with two M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the two parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you’ll be able to move it around with a stepper.

Angular contact

bearing
Ball bearings are made with angular contacts that result in an angle between the bearing’s races. While the axial load moves in one direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to five times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing’s axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

bearing
Ball bearings are circular structures with two separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It’s also less resistant to heat than aluminum oxide, so it’s best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you’ll be able to transfer more energy, have less erosion, and improve the life of your machine. With today’s advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it’s best to select the right one for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between one and five million rotations. As long as its surface contact area is as small as possible, it’s likely to be serviceable for at least one million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

bearing
The basic principle behind sliding-contact bearings is that two surfaces move in contact with one another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn’t run in a bronze-lined bore, or vice versa. Instead, one element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their two surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in two different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the two elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

China Slewing Bearing Open-Pit Mining Equipment     bearing exampleChina Slewing Bearing Open-Pit Mining Equipment     bearing example
editor by czh 2023-01-26