Thrust Ball Bearings

What is Thrust Ball Bearings

A thrust bearing is a particular kind of rotary bearing designed to support axial loads and lower friction. The thrust bearings are intended to enable and aid rotation around a fixed shaft or axis, and while a machine is in motion, its rotating components move along them. Transferring thrust loads placed on the shaft and limiting axial shaft drift are two primary purposes of thrust bearings. Thrust bearings are typically positioned against a high thrust collar around a shaft. The thrust collar transfers the shaft’s axial load to the bearing. Thrust collars are usually used in pairs, one on each side of the thrust collar. Although several types of thrust bearings are available to meet the requirements of various applications, they typically consist of two washers or raceways in addition to the rolling elements. They have small metal balls all around the outside to help the rotating sections of a machine.

Advantages of Thrust Ball Bearings

High load capacity and stiffness

Thrust ball bearings are designed to handle axial loads, which means they are able to support high loads in the direction of the axis of rotation.They also have a high stiffness, which means they resist deformation when subjected to loads.

Low friction and noise

Thrust ball bearings are designed to roll between two raceways, which reduces friction and wear.This design also reduces noise, making thrust ball bearings suitable for applications where quiet operation is important, such as in the automotive industry.

Easy to install and maintain

Thrust ball bearings are relatively easy to install and maintain.They are typically mounted using a press fit or set screws, and can be easily replaced when worn out.

Compact size

Thrust ball bearings are relatively compact in size, which makes them suitable for use in applications where space is limited.Their small size also makes them easy to integrate into existing designs, which can help reduce manufacturing costs.

Single Direction Thrust Ball Bearings

Material: Chrome steel(GCr15). Precision: P0, P6, P5, P4. Cage material: Steel, Brass. Working

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Double Direction Thrust Ball Bearings

Material: Chrome steel(GCr15). Precision: P0, P6, P5, P4. Cage material: Steel, Brass. Working

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Why Choose Us

Our Factory
Shaanxi Gainhui Heavy Industries Co., Ltd. was established in 2009, covering an area of 16,000 square meters and a plant area of 8,800 square meters, including production workshops, assembly workshops, packaging workshops, testing centers, finished products warehouses, raw materials warehouses, office spaces, etc.

Quality Control
Our company controls the bearing production process strictly, formulates complete quality inspection system, monitors the entire process from purchasing raw materials, forging, turning, heat treatment, grinding, assembly and packaging.

Advanced Equipment
Our company has strong technical force and is equipped with advanced processing equipment.There are more than 60 main bearing processing devices and more than 10 auxiliary devices.

Our Certifications
Has complete quality management system and has passed ISO9001:2015 quality management system certification. At the same time, our company has also obtained corporate credit certification. Our company will strictly abide by the ISO9001:2015 quality management system, ensure the standardization of management work, and maintain the sustained, stable and healthy development of the company.

Types of Thrust Ball Bearing

Tapered roller thrust bearing
The amount of thrust this bearing can support is determined by the angle formed between the bearing axis and the line of contact between the raceway and the tapered roller. The bearing is better suited for axial loads if this angle is larger than 45 degrees. Another feature of heavy-duty tapered roller thrust bearings is a second row of opposing tapered rollers. This kind of “screw-down” bearing prevents minor to moderate angular misalignment by changing the curvature of a raceway.

Cylindrical roller thrust bearing
Radial patterns of cylindrical rollers are arranged around the bearing axis. To lessen stress, these rollers need to be crowned or end-relieved. They are available in double-row forms and may be deployed in relatively little axial space. They should not be used for radial loads.

Spherical roller thrust

The raceways closely mimic the cone-and-cup configuration of typically tapered roller bearings, while the rolling elements are fashioned like barrels. This allows the bearing to self-align, which is advantageous in applications where shaft deflection or shock loads may happen.

Thrust ball bearings

Thrust ball bearings cannot transmit radial loading. This type is prone to misalignment, so producers often add a sphered groove to the housing washer to lessen the likelihood. Although they operate well in high-speed applications, they struggle under enormous loads.

Needle roller thrust bearing

Thrust bearings with needle rollers are prized for their low height and many rolling elements. Consequently, their rolling elements sometimes directly contact the rotating parts without a shaft washer or housing washer. Radial loads are zero, but shocks and axial loads are extremely high.

How to Choose Thrust Ball Bearing

Check for accuracy

Thrust ball bearings can support axial loads in one or two directions. The balls, which roll with very low friction and carry the load, transfer the load between the raceways. Due to their design, thrust ball bearings are not appropriate for heavy radial loads.

To ensure appropriate functioning and precise load support, it is important to choose the right size and type of linear bearings and rails south africa for your application. The bearing also needs to sustain the required speed and load capacity.

Selecting needle bearings that fit your unique requirements is important since thrust ball bearings are made to offer a high level of precision and accuracy. High-precision thrust ball bearings will perform more consistently and deliver successful results.

Speed

Needle bearings are designed to perform well over a specific range of speeds. A fast-moving system will require different bearings than a slow-moving system. Even if they are slightly out of alignment, high-speed bearings must continue to function securely because this might have a far more substantial impact when turning quickly.

Temperature

To make the most of a spinning system, you must know how temperature changes affect its parts. A system's journal bearing can generate a lot of heat, and how they respond to heat from other sources is also essential. The bearing's lubrication needs to be adjusted for the temperatures it will operate.

Load

The bearing load can be measured in several ways. The right radial load angle is applied to the shaft. Forces that act in the same direction can be measured using axial load. In a system, axial and radial loads can combine to create a moment or combined load. A bearing over the expected range must support all three types of loads.

Application of Thrust Ball Bearing

Automobile vehicles
There are a number of applications for these small bearings. The most notable usage of thrust ball bearings is in automobile systems. In the design and function of vehicles, the bearings are used to create rotational movement. The thrust ball bearings are used to convey automobile transmissions.

Automotive applications are used to support axial loads that might be carried by the vehicle. Provides support to the vehicle system so that there is a smooth transmission of power to the different parts of the vehicle. The thrust-bearing balls handle the load and carry it forward during the vehicle's driving process.

Aerospace design
In the advanced aerospace sector, the thrust ball bearing setup is also used extensively. Aerospace vehicles like aircraft and rockets are dependent on aerospace design and thrust ball bearings. Is part of the landing gear system. These small parts are very crucial and handle critical loads in the axial section of the vehicle.

The bearing parts are used during the takeoff and landing process of aerospace vehicles. Flying and space exploration are dependent to a great extent on the accurate design of the thrust ball bearings. Safe and secure landing and takeoff are ensured with the help of aerospace design and development, in which the thrust ball bearing plays a huge part.

Industrial machinery
Thrust ball bearings are also a part of many large-scale industrial machinery. The bearing can be found in industrial machinery like fans and complex pump systems. The bearing system. The machinery will support axial loads and help smoothen the machinery rotations for different purposes. The thrust ball bearing is used in many complex and simple gadgets to ensure that the efficiency of these machines and their load-bearing capacity are maintained properly. Therefore, in many industries, the thrust ball bearing makes a lot of difference.

Machine tooling
The machine tools that are used to create machines and repair them are also dependent on thrust ball bearings. Machines like lathes and milling machines are made out of different parts, which also include thrust ball bearings. For good quality thrust ball bearings, you will need to contact a reputed manufacturer of the parts. If the thrust ball bearing itself malfunctions, heavy machinery will not work properly, which can cause a lot of complications. The same situation can also lead to a lot of accidents and hazards in the machine tooling process.

Power generation
Thrust ball bearings are also a part of turbines and power generators. The turbines and power generators rotate to create kinetic energy that can turn into electrical energy. To create these rotational machines, thrust ball bearings are used to a great extent. From conventional power plants to new-age power solutions, thrust ball bearing is used at a very high level.

Precautions When Installing Thrust Ball Bearings

In the assembly process of thrust ball bearings, planar thrust bearings are mainly used for bearing axial load and are widely used. Although the installation operation of the thrust bearing is simple, the installation operation of the thrust ball bearing is relatively simple, but there are still errors in actual maintenance, that is, the installation position of the tight ring and loose ring of the bearing is incorrect, which leads to the failure of the bearing and the rapid wear of the journal . The tight ring and the axial neck are transitionally matched, so that the axial neck is quickly worn and dropped.

When the shaft rotates, the inner ring of the tight ring and the journal make a transitional fit, which drives the tight ring to friction with the end surface of the stationary part. When the shaft rotates, it drives the end surface of the stationary part to friction. When the axial force (fx) when acting, the friction torque generated is greater than the resistance torque of the inner diameter matching. When the axial force (fx) acts, the friction torque generated is greater than the resistance torque of the inner diameter matching. The guide (fx) forces the tightening ring to rotate and aggravate the journal wear.

Therefore, the following points should be paid attention to when installing thrust bearings.
●Distinguish the tight ring and loose ring of the bearing, judge according to the size of the inner diameter of the bearing, divide the hole diameter of the tight ring and loose ring of the bearing into 0.1~0.5mm, the difference is 0.1~0.5mm)
●The static block of the separation mechanism (that is, there is no moving part, mainly refers to the static block equipped with the separation mechanism).
●In any case, the loose ring of the bearing should always rest on the end face of the fixed part.

How to Clean Thrust Ball Bearing

Remove the rubber shield
Mildly remove the non-contact rubber shield of the thrust ball bearing, you can make use of a push pin for prying the shield upwards. It should pop out and quite easily, do not bend or cut the seal. If the shields are bent, it would not fix well and can allow contaminants into the bearing.

Cage removal
You can clean your thrust ball bearing thoroughly with a retainer or the cage. A straightened paper clip can be used to remove ball retainer out. Once the retainer is out, you can remove the balls and place them in a secured place.

Drying your bearings
Remove the balls and retainers from the solution and dry them as soon as possible. Take care to not let any of the cleaning agents enter your eyes or spill on the cloth.

Reinstalling the cages
Make use of paper clips to spread balls evenly and insert into the ball retainer then cautiously snap the ball retainers back into its place. Once you have retainers back in the bearings, check if each of the bearings spins freely.

Lubricating the bearings
Never use your bearings without proper lubrication. Since the bearings work faster without a lubricant, do not be under the impression that it is working great. Bearings should run at a regular pace not too smooth or not too hard. Bearings without lubricant will fail quickly and may cause freezing up leading to further deterioration in its working.

Reinstalling clean rubber shields
Place each of the shields flat on one side where the balls can be visible. Then press the shield gently into the place using your thumb into a rolling action. Shields are usually identical hence follow a proper process on both sides o of the bearings. Spin each bearing properly to check, if they move smoothly for a couple of revolutions to distribute lubricant evenly across the entire bearings.

Reinstalling the bearings
While reinstalling the bearing always make sure to use a right tool that doesn’t put direct pressure on the shield. Any kind of dent in the shield will eventually cause friction and slow the running process. Use the proper tool that will only press the outer ring of the bearing while inserting. After installing the bearings, always make sure that the bearings are aligned properly so that the wheels spin freely and smoothly.

FAQ

Q: What are thrust ball bearings used for?

A: Thrust bearings support the axial thrust of both horizontal and vertical shafts. The functions are to prevent the shaft from drifting in the axial direction and to transfer thrust loads applied on the shaft.

Q: What is the difference between a bearing and a thrust bearing?

A: Ball bearings are better for high-speed applications and thrust bearings are better for heavier loads. Ball bearings are more efficient, require less maintenance, and generate less heat than thrust bearings, yet, thrust bearings are more durable and can support higher loads.

Q: What is the difference between radial and thrust ball bearing?

A: Bearings are typically classified as either radial or thrust depending on the type of load they are designed to support. Radial bearings are designed to support a radial load, whereas thrust bearings are designed to support a thrust load. Radial is the most common type.

Q: Where would you use a thrust bearing?

A: In addition to the obvious automotive uses, thrust bearings are commonly used in marine and aerospace applications. Other uses include food and beverage processing machinery, medical devices, handheld machine tools and a wide range of other applications.

Q: How do thrust bearings work?

A: Fluid thrust bearings contain a number of sector-shaped pads, arranged in a circle around the shaft, and which are free to pivot. These create wedge-shaped regions of oil inside the bearing between the pads and a rotating disk, which support the applied thrust and eliminate metal-on-metal contact.

Q: What is another name for thrust bearing?

A: The terms axial ball bearing or thrust ball bearing can be used interchangeably. Sometimes, they are even combined together, referred to as 'axial thrust bearings'. This group of bearings has been designed to endure an axial load, also known as a thrust load, which is a force in the same direction as the shaft.

Q: Why is it called a thrust bearing?

A: A thrust bearing is a type of bearing that helps rotation and resists thrust at the same time. The main function of a thrust bearing is to resist any axial force applied to the rotor and maintain its position.

Q: How to identify a thrust bearing?

A: Whereas radial-load bearings locate ball or roller races on the opposing inner and outer bearing rings, most thrust bearings have raceways machined into the faces of mating rings. This arrangement supports a load that is parallel to the bearing axis, but offers little to no support for radial loads.

Q: Can thrust ball bearings only support radial loads?

A: Thrust bearings should not be subjected to a radial load. They are designed for thrust/axial loads only. A standard thrust bearing is comprised of a brass or steel washer containing the balls sandwiched between two other washers which usually have raceways (ball tracks).

Q: Why does a thrust bearing break?

A: In general, though, one or more associated problems are usually to blame, including poor crankshaft surface finish, bearing overloading or bearing surface misalignment. Current transmission designs have been known to contribute to thrust bearing failure due to the greater thrust loads—often in excess of 2000 lbs.

Q: Why thrust ball bearings cannot be operated at high speeds?

A: Thrust ball bearings are not suitable for high speed applications due to their design which has minimal contact points between balls and raceways, resulting in a higher risk of overheating at high velocities. This can lead to a breakdown of the lubricant and potential damage to the bearing.

Q: How are thrust bearings installed?

A: The usual steps for installing a thrust ball bearing are as follows: First, install the housing washer, then place the cage with steel ball assembly on top, and finally add the shaft washer. The shaft washer secures the shaft's axis and allows it to rotate.

Q: What happens when a thrust bearing fails?

A: Ignoring a failing clutch thrust bearing can lead to a variety of issues, including difficulties in shifting gears, increased wear on the clutch system, and potential safety hazards. This is why it's so important to address the issue promptly.

Q: What are the types of thrust ball bearing?

A: Thrust ball bearings are classified into “flat seat” and “aligning seat” types, based on the shape of the housing washer (outer ring seat), and as single-direction or double-direction. Spherical and aligning seat washers help to provide tolerance for mounting errors.

Q: Is a thrust bearing a roller bearing?

A: Thrust spherical roller bearings contain convex rollers that make them self-aligning and unaffected by mounting error and shaft deflection. The e-type offers a high load capacity design with a pressed steel cage.

Q: What type of loads can a thrust bearing support?

A: Thrust bearings are designed to accommodate axial load in one or both directions. The single acting carries the load in one direction while the double acting can carry the load in both directions.

Q: How is thrust bearing lubricated?

A: Two options exist for lubrication. The first is to fully flood the bearing housing. The second, which is more suitable for higher speed applications, directs oil to the thrust face. This oil is then allowed to drain freely from the bearing housing.

Q: Where are thrust bearings used?

A: Thrust bearings are commonly used in automotive, marine, and aerospace applications. They are also used in the main and tail rotor blade grips of rc (radio controlled) helicopters.

Q: Why thrust ball bearings cannot be operated at high speeds?

Q: Are thrust bearings directional?

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