LLG Spherical Roller Thrust Bearing is mainly engaged in the development, manufacture, and sale of bearings. After years of research and development, we have grown into a bigger company. We, LLG Spherical Roller Thrust Bearing can lead the international market competition in all three aspects of design, manufacturing, and testing. Therefore, we have become one of the leading bearing suppliers in China.
- High-end manufacturing, high-end markets, high-end strategic customers for LLG Spherical Roller Thrust Bearing products.
- Create a large-scale carrier group with international competitiveness.
- Implemented the dominant heights and internationalization strategy to advance high-end LLG Spherical Roller Thrust products and international markets.
- Construction of large national LLG Spherical Roller Thrust Bearing projects.
- Provide customers with first-class products and services.
The LLG’s Spherical Roller Thrust Bearing
Our LLG Spherical Roller Thrust Bearing company was born with the diversification of the marketing network and the continuous changes in the market. The LLG Spherical Roller Thrust Bearing can deliver the goods from the warehouse at any time or make a production plan according to the specific requirements of the customer. It can meet the needs of bearings.
We from LLG Spherical Roller Thrust Bearing company works per ISO standards and have professional staff, sophisticated testing instruments, and in-house testing systems. Quality control is implemented in every process from material receipt to product packaging to ensure the quality of our LLG Spherical Roller Thrust Bearings.
LLG Spherical Roller Thrust Bearing Series
Diameter: 60 – 110 mm
Outside Diameter: 130 -230 mm
Height: 42 – 73 mm
Featuring: 29412E-29422E Spherical Roller Thrust Bearing rotates with low friction, and the angle difference is possible. Designed to handle unidirectional radial and large axial loads.
Diameter: 120 – 190 mm
Outside Diameter: 210 – 380 mm
Height: 54 – 115 mm
Featuring: 29324E – 29438E Spherical Roller Thrust Bearing rotates with low friction, and the angle difference is possible. Designed to handle unidirectional radial and large axial loads.
Diameter: 200 – 300 mm
Outside Diameter: 280 – 540 mm
Height: 48 – 145 mm
Featuring: 29240E- 29460E Spherical Roller Thrust Bearing rotates with low friction, and the angle difference is possible. Designed to handle unidirectional radial and large axial loads.
Diameter: 320 – 420 mm
Outside Diameter: 440 – 730 mm
Height: 73 – 185 mm
Featuring: 29264E – 29484EM Spherical Roller Thrust Bearing utilized in auto, marine, and aviation applications. Likewise utilized in the fundamental and tail rotor edge holds of radio controlled helicopters.
Diameter: 440 – 600 mm
Outside Diameter: 600 – 1030 mm
Height: 95 – 258 mm
Featuring: 29288EM – 294600EM Spherical Roller Thrust Bearing utilized in auto, marine, and aviation applications. Likewise utilized in the fundamental and tail rotor edge holds of radio controlled helicopters.
Diameter: 630 – 900 mm
Outside Diameter: 850 – 1520 mm
Height: 132 – 372 mm
Featuring: 292630EM – 294900EF Spherical Roller Thrust Bearing can oblige spiral loads until 55 % of all the acting hub load.
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Diameter: 950 – 1600 mm
Outside Diameter: 1250 – 2280 mm
Height: 180 – 408 mm
Featuring: 292950EM – 2931600EF Spherical Roller Thrust Bearing can oblige spiral loads until 55 % of all the acting hub load.
Why LLG Spherical Roller Thrust Bearing
LLG Spherical Roller Thrust Bearings are the frequently used components for positioning tapered bore bearings in cylindrical can be used on shafts that are smooth or have stairs. LLG Spherical Roller Thrust Bearings are easily to installed and does not require additional location on the shaft.
The LLG Spherical Roller Thrust Bearing are precisely positioned in the axile direction. LLG Spherical Roller Thrust Bearing is a thrust bearing that allows low friction rotation and allows angular misalignment. These bearings typically hold the rotating shaft in the hole in the shaft washer.
The LLG Spherical Roller Thrust Bearing is for your Business Needs
LLG - Your Professional Spherical Roller Thrust Bearing
- Factory
The Spherical Roller Thrust Bearing
Searching for long life, high-speed, high-precision, low noise, and high-reliability spherical roller thrust bearing? Our LLG Spherical Roller Bearing is perfect for you.
We from LLG Spherical Roller Thrust Bearing have advanced production equipment, testing equipment, and a good control system to enable the smooth production of products. The LLG Spherical Roller Thrust Bearing product quality guarantee period is more than 2000 kilometers.
LLG Spherical Roller Thrust Bearing can also be produced with drawings and samples according to customer’s requirements. The LLG Spherical Roller Thrust Bearing sincerely welcome friends of all levels to visit and negotiate with our business.
Furthermore, our product is ISO9001:2000 certified. LLG Spherical Roller Thrust Bearing has a precision rating of P0, P6, P5, P4 and clearance of C1, C2, C3.
Contact us now and avail of our products!
Spherical Roller Thrust Bearing – The Ultimate FAQ Guide
In today’s world of technology bearings are a big part of our industries whether it is of any kind. Consumers from all around the world are in search of manufacturers who can satisfy them by giving good quality bearings accordingly priced.
To remove your confusion LLG Bearings can help you at each and every step of your bearing choosing journey. As we have 20 years of experience in manufacturing bearings.
However, if you are in search of high-quality spherical roller thrust bearing, you are definitely at the right place.
Following is a FAQ guide to spherical roller thrust bearing which can help you understand everything about it.
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What Is a Spherical Thrust Roller Bearing?
A spherical roller thrust bearing consists of a thrust type rolling bearing which allows angular alignments and movement with low friction.
The bore of the inner ring which is misaligned contains a rotating shaft in relation to the outer ring.
Axial loads acting in a direction and accompanying acting radial loads are provided housing by the bearings. The weight on the bearing is converted between the running way by the rollers of the bearing.
They have two inner ring and two outer ring raceways inclined towards the bearing axis.
Spherical roller thrust bearing
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Describe the Applications of Spherical Roller Thrust Bearings?
Most of the spherical roller thrust bearings applications are:
- Classifiers
- Pre-heater fans
- Agricultural machinery
- Earth moving machinery
- Industrial machinery such as cleaning and bottling
- Metal mill work
- Pumps
- Blowouts
- Electric motors
- Screw conveyors
- Processing equipment as refiners
- Fitness machines
- Cranes
- Water turbines
- Machining equipment such as steel, glass, marble, wood
- Swing bridges
- Offshore drills
- Ex-truders
- Automatic opening systems
- Pulp and paper
- Mineral and cement processing
- Mining
Moreover, they are specially designed for operating heavy loads, shaft deflection and maintaining and establishing housing alignments. It takes heavy and radial loads in one direction.
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What Do You Know About the Advantages of Spherical Thrust Roller Bearings?
Some of the advantages of spherical thrust roller bearings are described below:
- They have the ability to carry static and dynamic alignments.
- These bearings have moderate to high capacity of speed.
- They have low coefficient of friction due to which they have reduced maintenance requirements.
- These type of thrust bearings are self-aligning and can support high operating speeds.
- Their capacity for radial, thrust and loads in one direction allows them to carry outstanding heavy loads.
- There high number of asymmetric rollers are excellent for distribution of loads.
- Spherical roller thrust bearings while rotating at high speeds have minimum load requirements.
- They have reliable performance.
- They have versatility and wide spread use.
- They are insensitive to the misalignments of the shaft bending or deflection and consist of rotating shaft bounded to the housing.
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What Are the Disadvantages of Spherical Roller Thrust Bearing?
Some of the disadvantages of these special roller thrust spherical bearings are:
- Spherical roller thrust bearings limit speed is very low.
- Have high starting torque and starting friction.
- They have poor compound materials.
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How Long Does a Spherical Roller Thrust Bearing Last?
The rating life of spherical roller thrust bearings mostly depends on the working hours or shifts per day or per week. They have 120,000 h rating life in one section and 200,000 hour in the other section known as dryer.
It also depends on the working environment and care for the bearings. Maintenance and proper lubrication of the bearing can help it long lasts.
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Describe the Construction of Spherical Thrust Roller Bearings?
A spherical roller thrust bearing have bearing units which can withstand axial loads in both directions and consists of asymmetric rollers, cage, shaft washers, internal ring and an external ring.
Spherical thrust roller bearings acts in one direction to carry axial loads. The load is then transmitted to the rollers and the flange guides the rollers.
The cages in spherical roller thrust bearing are part of bearings internal designs. The cage perfectly operates with lubricants and is of strong metal and all spherical roller thrust bearing contains it.
These cages are very helpful in enabling the bearings to tolerate high temperatures.
Construction of Spherical Roller Thrust Bearing
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What Are the Series of Spherical Roller Thrust Bearings?
Some of the common series of spherical thrust bearings are:
- 292
- 293
- 294
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What Are the Designs of Spherical Roller Thrust Bearing?
Spherical roller thrust bearings are formed in such a way to withstand loads like roller thrust bearing, radial roller bearings. There design consists of two rings , spherical rollers and a roller retainer. They also have two internal and external ring balls on both sides of the rollers.
Although there are many designs of spherical roller thrust bearing, among of the some designs limitations are:
- Special design with flange
- House washers have non-rotational marks
- Roller sizes, shapes and dimensions.
This is one of the best designs of spherical roller thrust bearings which have highest load density.
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What Materials Are used in Spherical Roller Thrust Bearing?
Bearings can be made with different materials. Chrome steel is referred as the common and widely used material. It has been tested by the authorities,
Some materials which are used in bearing cages are:
- Machined steel
- Stamped or machined steel on steel
- Stamped or machined brass.
Series having low volume have cages made by machined steel or machined brass, wherever sometimes high-volume series have cages of steel metal.
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Designs Benefit of Spherical Roller Thrust Bearing?
The design of spherical bearing holds some benefits which are discussed below:
During the operation the internal alignments of the bearing compensates for shaft deflections and housing distortion caused by heavy loads and shocks.
The rollers are arranged in angular position, which provide favour for moderate radial loads and thrust loads.
When spherical thrust bearings are specified bore, alignments are less critical.
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What Is the Temperature Limit of a Spherical Roller Thrust Bearing?
The temperature limit allowed for spherical roller thrust bearing can be limited by some of the following steps. Two of them are:
- By lubricants
- By the bearing washer’s dimensional stability
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Which Lubricants Are Best for Spherical Roller Thrust Bearing?
These spherical roller thrust bearings can be best lubricated with oil or grease which contains EP additives because they are good for the longevity of the bearings and are reliable for a longer period of time.
Ensure that the grease or oil should be used with high oil bleeding.
Viscosity of oils
The viscosity of lubricants totally depends on the increase and decrease in temperature. selection of oil as well as special grease is based on the demanded viscosity, so that the bearing can be lubricated accordingly.
Pumping effect
When selecting the type of seals and lubricants using the pumping effect can be very helpful. Very grateful to the designs of spherical roller thrust bearings, it is helpful to provide circulation of the lubricating oil by pumping action.
To force oil through the bearing the pumping effect can be used.
Also, to cool the bearing circulation of oil within the bearing is highly needed which can be only done by pumping effect.
It is necessary to heat the oil for pumping lubricant into the bearing to gain the suitable viscosity when the temperature is low.
Lubrication of oil
Lubrication of oil for the bearing is a very helpful solution in order to avoid any failures of bearing. When there is need for cooling of the bearing to moderate then oil lubrication is must.
At both sides of the spherical roller thrust bearings there must be a duct between the oil reservoirs.
Oil lubrication is highly considerable for the bridge pivots to avoid vibration damage.
Shafts which are vertical, for them for them oil lubrication is must.
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How to Maintain a Spherical Roller Thrust Bearing?
For a long lasting and smoothly working bearing, maintenance is the most important step which can keep your bearing running on the schedule.
Keeping your bearing maintained by those technique and tools which when applied can give excellent and satisfying results.
The first and necessary step is to analyse the condition of the bearing.
There are many bearing monitoring equipment available around that can help you know the conditions of the bearing.
Temperature
Changing of temperature such as very high or low can be a sign of malfunction. By checking the temperature continuously through a surface thermometer can let you know of the problem. Providing a suitable amount of lubrication can solve the following problem.
Oil leaks
Loose plugs or seal defects can results in oil leakage, for correcting the defect worn seals should be replaced immediately.
Discoloration
Darkening or discolouration can be the result of impurities presents in the lubricants.
Noises
When a bearing is in bad condition it can produce irregular sounds such as squeaking. Taking immediate action in earlier stage for the problem can help in detection of damage.
Oil and grease lubrication
You must check for the oil whether it is dark or light. Dark coloured oil is a marker of carbonized and dirt containing oil which is useless for spherical roller thrust bearings and may cause harm to the bearings. For curing the damage the oil should be replaced with the same type of oil.
Drain plugs are very important and find use to wash out a grease, during lubrication try to keep away the equipment from dirt. The best time to lubricate the bearing is when its’ running, it should be immediately lubricated when the above-mentioned signs are determined.
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What Is the Speed Limit of Spherical Roller Thrust Bearing?
The speed limit of a spherical roller thrust bearing totally depends on the temperature and pressure or weight which is easily carried by the spherical roller thrust bearings.
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What Is the Clearance of Spherical Roller Thrust Bearing?
Spherical roller thrust bearing can have axial clearance and preload. Any of the application in which the shaft is bounded by both two radial spherical bearings, so it must be mounted radially free. Spring preload must be given to the spherical roller thrust bearings as the thrust load can drop below the given amount of load.
The internal clearance or preload can be done by housing washers which are easy to move and have good clearance fit.
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How to Mount and Dismount Spherical Roller Thrust Bearings?
Following explained topic consist of the procedure of mounting and dismounting of a spherical roller thrust bearing.
Mounting
Spherical roller thrust bearing can be mounted separately as they are easily separable. The housing washers as well as the shaft with rotating rollers have interference fit and they are separated.
These bearings have high stiffness due to which hot mounting is considerable. Before mounting both shafts should be heated.
Another way of mounting is applying the oil injection method. In order to apply that the shaft should must be equipped by oil distribution grooves.
Dismounting
Dismounting of spherical thrust bearing is recommended when there is a need of replacement of spherical thrust bearing along with a machined cage. It is then replaced by an E-designed with a pressed steel cage.
Spacer sleeves are necessary to be inserted between the two shafts. The axial force is being transmitted via the cage gliding sleeve.
The spacer sleeve needs to be modified for the replacement of a B-design with a spacer sleeve.
While removing a shaft washer from the interference fit a specific amount of pressure is needed on them.
Spherical roller thrust bearing can also be dismounted with oil injecting method.
Dismounting of Spherical Roller Thrust Bearing
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What Are the Causes and Solutions of Spherical Roller Thrust Bearing Failure?
Occurring of failures and their solutions in spherical roller thrust bearings are:
Misalignments
Misalignment is a failure which is caused when shafts are bent, out of square spacers, improper installation due to lose fit.
Signs of failure
Overheating and separator failure
Cure
Using of precision-grade lock nuts can be helpful.
Misalignment of Spherical Roller Thrust Bearing
Improper mounting
This failure can be caused by when shaft and housing fits becomes loose and when finish on the bearing seats is poor.
Signs of failure
Wear, denting, cracked rings, early and premature failure and high operating temperature.
Cure
Employs should be trained so they can understand the difference between improper and proper installation.
Follow professionally specified instruction for mounting of bearing.
Spalling
Spalling can cause by tight-inner ring fits and overloading or preload.
Signs of failure
Signs of spalling on a bearing are increase in vibration and noise, can spread with continued operation, fracture in running surfaces and also loss of small particles of material from the rolling elements or outer and inner ring.
Cure
This problem can solve by redesigning a bearing with internal shafts and housing standards also with greater calculated fatigue.
Lubrication
It can be caused by excessive temperatures that degrade lubricants or using of improper lubricants.
Sign of failure
Some of the signs of failures are discolouration, bearing wear and overheating.
False brinelling
It is caused by lack of rotation in the bearing which prevents fresh lubricant from entering the bearing.
Sign of failure
The axial direction at the rolling element pitch contains linear wear masks.
Cure
Lubricants containing anti wear additives are highly recommended for this type of failure.
Contamination
It is caused by using dirty tools or hands which results in addition of contaminants in lubricants.
To our naked eye a lubricant or tools etc might look clean but in real it contains very tiny wear causing elements such as, sand, metal shards, dust and dirt etc. These elements when once cause damage to the bearings it is very difficult to fix it.
Sign of failure
Vibration occurs in bearings, increase of denting in raceways and rolling elements.
Cure
For protecting bearings from such kind of defect tools, fixtures, hands and work areas should be kept clean and the lubricants must be filtered.
The lubricant must be from a reputable company.
Contamination of Spherical Roller Thrust Bearing
Lubricants must be kept indoor and away from heat and other elements which causes contamination.
Ensure about the equipment and lubricant to be clean when replacing grease, oil etc.
Some other damages
Cycloidal shaped damage on the ends of rollers and scoring on the rib surface it is caused when precision of shaft and housing is very poor.
The damage can be measured by checking the correctness of the shaft with the housing fit.
Inclination of inner and outside ring can also be the result of the precision of the shaft and the housing.
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How to Overcome or Cure the Failures of Spherical Roller Thrust Bearing?
For the longevity of a bearing some rules must be followed which can boost their working and kept away many failures from the bearing.
When a new bearing is purchased, it is covered with an anti-corrosive agent that prevents proper bearing rotation. Do not unpack your bearing unless it is very necessary because even a little amount of powdery particles can cause a high damage to the bearing.
Investigate for damages in bearing, if damage is found, look for its cause and cure immediately.
If an oil lubricant is used it should be applied to all roller surface of the bearing. The oil amount must be secured for applications of oil bath lubrication or drip oil lubrication.
If it is a grease lubricant then it is recommended to pack the bearing with grease. It should be also applied to the free spaces surrounded by the rollers.
Be very careful when mounting the seal so the seal lip can be protected from any damage. And pay attention to the seal direction and avoid deforming when mounting it to the housing.
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How Often Should a Spherical Roller Thrust Bearing Be Greased?
A perfect routine for bearing to be sufficiently lubricated is a single or two times with the help of a lubricating gun after two weeks and more if the working hours are more than a normal working hour routine.
Greasing of Spherical Roller Thrust Bearing
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How Can Spherical Roller Thrust Bearing Be Lubricated?
There are many ways to lubricate a spherical roller thrust bearing such as:
- Oil lubrication
- Oil bath lubrication
- Circulating oil lubrication
- Cooling method
- Heating method
- Grease lubrication
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How to Select a Spherical Roller Thrust Bearing?
Selection of bearing can be a difficult step if you are not aware of things like:
- Be aware of the demanding condition of the bearing.
- Is the usage of spherical roller thrust bearings in such environment good to be used?
- Will the bearing fit in the installation space? Is it suitable for the magnitude and direction of load you desire?
- Are you satisfied by the service life and dimensions of the bearing?
- Be aware of the rotation of the bearing, can it rotate over a long period of time?
- Which bearing structure surrounding are you looking for?
- Does it support mounting and dismounting?
If you know the answers of the above discussed questions then it will be much easier for you to find the right bearing for your machine.
Selection of a Spherical Roller Thrust Bearing
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Why Are Spherical Roller Thrust Bearings Considered Superior?
Spherical roller thrust bearings are considered superior by various means, in many applications they can replace taper roller bearings, because of the contact angle in them.
They are designed in a way that can help them take radial loads including the thrust loads as well. They give friction free and smooth adjustments in every operating condition due to misalignments they accommodate between the shaft and the housing.
This thrust bearing is separable so it can be mounted all separately.
They can take heavy axial and radial loads. Additionally in one direction it accommodates very heavy axial loads.
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Is Oil Lubrication Good for Spherical Roller Thrust Bearing?
Yes, it is the most widely used lubrication for such kinds of bearings. It is applied to the spherical roller thrust bearings to avoid crack from noise of vibration when these are not rotating.
With grease lubrication the rated speed is lower but with oil lubrication it is high.