Product Description
TCB100 Steel DU Sleeve Self Lubricating Oilless Metal PTFE Bush DIN1494 Standard Print Machine Oil Sliding Pap Bushing Bearing
PRODUCT DESCRIPTION
China Wholesale Steel Base CZPT Metal Bush Wrapped Sleeve DU Bearing Self-lubricating Sleeve Bushing for Print Machine.
Its material structure is Steel base + Bronze powder + PTFE and filler.
It can offer the good properties of self-lubricating, anti-abrasion, low-friction, fully developing the advantages of metal and multi-element polymer.
It’s applied to the printing, woven, tobacco and gymnastic machinery, etc.
| Performance Index | Data | |
| Product Name | TCB100 Steel DU Sleeve Self Lubricating Oilless Metal PTFE Bush DIN1494 Standard Print Machine Oil Sliding Pap Bushing Bearing | |
| Load capacity P (Dry friction) | Static Load | 250N/mm² |
| Dynamic Load | 140N/mm² | |
| Oscoillation Load | 60N/mm² | |
| Max line speed V | Dry Lubrication | 2.5m/s |
| Oil Lubrication | >5m/s | |
| PV value limit | Grease Lubrication | 1.8N/mm²· m/s |
| Oil Lubrication | 3.6N/mm²· m/s | |
| Friction coef u | Dry Lubrication | 0.08~0.20 |
| Oil Lubrication | 0.02~0.12 | |
| Mating Axis | Hardness | >220 HB |
| Roughness | Ra=0.4~1.25 | |
| Material | Steel+Bronze+(PTFE+Filler) | |
| Typical application | The printing, woven, tobacco and gymnastic machinery, etc. | |
| Working Temperature | -200~+280ºC | |
| Thermal conductivity | 40W/(m·K) | |
| Coefficient of linear expansion | 11×10-6/K | |
| Outside surface Plating | copper/tin | |
| Notice: We can also develop according to customers special request while out of this table | ||
DETAILED IMAGES
COMPANY PROFILE
EXHIBITION SHOW
PACKING AND DELIVERY
1. Inner Packing
For small products: 100PCS-200PCS per sealed plastic bag.
For bigger products: 2PCS-10PCS per plastic film roller (depends on the product size)
2. Outer Packing&Shipment Packing
8PCS-300PCS per carton (depends on the product size)
3. Shipment Packing
18-24 cartons per wood case or pallet, shockproof and safe for transportation.
FAQ
Q: Are you trading company or manufacturer?
A: Our management is focused on exporting activities for more than 10 years and we have our own bushing factory.
TEHCO is always professional and reliable. Our advantages are multiple resource integration, strong quality assurance and excellent service level. We are always responsible for our products.
Q: Hong long is your delivery time?
A: Generally 10-25 days after order. It depends on the quantity.
Q: Do you produce samples? Is it free or extra?
A: For standard products, we produce samples free of charge for our customers. And the express costs will be burdened by the customer, but can be returned after the order is placed.
Q: How to ensure the quality?
A: We produce as per the confirmed technology or drawings for each order for our customers. And our factory has a strict quality control system. We inspect goods during production according to a certain frequency and we also perform the final inspection before the goods are packed.
Q: Do you like to serve the customers only with small orders?
A: We are always glad to grow up together with all our customers whatever big or small.We hope our customers become stronger and stronger to be with us.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Customized: | Customized |
|---|---|
| Certification: | ISO, ISO 9001:2015 |
| Standard Parts: | Standard or non standard |
| Universal: | Yes |
| Type: | Bushing |
| Material: | Steel Base+ Bronze Powder+ PTFE |
| Samples: |
US$ 0.01/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Differences Between Plain Sliding Bearings and Self-Lubricating Bearings
Plain sliding bearings and self-lubricating bearings are two distinct types of bearings used in various applications. Here are the key differences between them:
Plain Sliding Bearings:
- Plain sliding bearings, also known as bushings, are simple bearing components that consist of a cylindrical sleeve made of a bearing material.
- These bearings require external lubrication, such as grease or oil, to reduce friction and wear between the bearing and the shaft.
- Regular maintenance and lubrication are essential to ensure proper operation and longevity.
- Plain sliding bearings are cost-effective and suitable for applications where lubrication can be easily provided.
- They are commonly used in low-speed and low-load applications, where the shaft slides within the bearing.
Self-Lubricating Bearings:
- Self-lubricating bearings, also known as maintenance-free bearings, are designed to operate without the need for external lubrication.
- These bearings incorporate solid lubricants, such as graphite, PTFE (polytetrafluoroethylene), or other additives, directly into the bearing material.
- The solid lubricants are released gradually as the bearing operates, reducing friction and providing a consistent lubricating film.
- Self-lubricating bearings are ideal for applications where frequent maintenance or lubrication is impractical or not feasible.
- They are suitable for both low-load and high-load applications, as the self-lubricating properties help extend the bearing’s service life.
In summary, plain sliding bearings require external lubrication and are suitable for applications where lubrication can be provided, while self-lubricating bearings incorporate solid lubricants and operate without the need for regular maintenance. The choice between these two types depends on factors such as the application’s operating conditions, maintenance requirements, and budget considerations.
Managing Friction and Wear in Sliding Bearings
Friction and wear are common challenges in sliding bearings that can lead to reduced performance and premature failure. Here’s a detailed look at these challenges and some solutions to manage them:
Challenges:
- Friction: High friction can lead to energy loss, increased heat generation, and accelerated wear.
- Wear: Continuous contact between sliding surfaces can result in material removal and surface degradation over time.
Solutions:
- Lubrication: Proper lubrication is crucial to reduce friction and wear. Lubricants create a protective film between sliding surfaces, minimizing direct contact and promoting smooth movement.
- Self-Lubricating Bearings: Bearings made from self-lubricating materials, such as polymers containing solid lubricants, can offer continuous lubrication without external intervention.
- Bearing Design: Optimized bearing designs, such as incorporating grooves or pockets for lubricant retention, can enhance lubrication efficiency and reduce friction.
- Maintenance: Regular maintenance and lubricant replenishment help ensure consistent lubrication levels and prevent excessive wear.
- Material Selection: Choosing materials with low friction coefficients and high wear resistance can minimize friction and extend bearing life.
- Surface Treatments: Coatings, such as PTFE or DLC (diamond-like carbon), can be applied to bearing surfaces to reduce friction and enhance wear resistance.
- Clearance Adjustment: Proper clearance between bearing components can reduce friction and prevent excessive loading.
By implementing effective lubrication strategies, choosing appropriate materials, and employing suitable design practices, the challenges of friction and wear in sliding bearings can be effectively managed, leading to improved performance and longer bearing life.
Considerations for Selecting Sliding Bearings
When choosing a sliding bearing for a specific application, several key factors should be taken into consideration:
- Load Capacity: Determine the maximum load the bearing will need to support. This includes both radial and axial loads, as well as any dynamic or static loads.
- Operating Conditions: Consider the operating environment, including temperature, humidity, and exposure to chemicals or contaminants. Different materials and coatings may be required for harsh conditions.
- Lubrication: Choose the appropriate lubrication method based on the application. Consider factors such as the frequency of lubrication, the availability of lubrication points, and the compatibility of lubricants with the bearing material.
- Speed and Motion: Evaluate the speed and type of motion the bearing will experience. Higher speeds may require special considerations for heat dissipation and lubrication.
- Alignment and Misalignment: Determine if the bearing will need to accommodate misalignment between the shaft and the bearing housing. Some applications may require self-aligning or spherical bearings.
- Wear Resistance: Choose a bearing material that offers good wear resistance to prevent premature wear and extend the bearing’s lifespan.
- Noise and Vibration: Consider the impact of noise and vibration on the application. Bearings with proper damping properties can help reduce noise and vibration levels.
- Maintenance Requirements: Assess the ease of maintenance, including lubrication intervals, accessibility of lubrication points, and the need for regular inspections.
- Cost and Availability: Compare the cost of the bearing with its expected performance and lifespan. Also, ensure that the chosen bearing type and size are readily available.
- Application-Specific Considerations: Some applications may have unique requirements, such as corrosion resistance, electrical insulation, or compatibility with food-grade standards.
By carefully considering these factors, you can select a sliding bearing that meets the specific needs of your application, ensuring reliable performance and longevity.
editor by CX 2024-04-30
China OEM Oilless Sliding Sleeve Tractor Self Lubricating Graphite Bimetal Bearing with Good quality
Product Description
Oilless Sliding Sleeve Tractor Self Lubricating Graphite Bimetal Bearing
|
Material |
Steel + CuPb10Sn10 + Graphite |
|
Typical Application |
Starting Motor |
|
Max Dynamic Load |
140N/mm² |
|
Max Line Speed (Grease) |
2.5m/s |
|
PV Value Limit (Grease) |
2.8N/mm².m/s |
|
Friction Coefficient (Grease) |
0.05~0.15 |
|
Max Working Temperature(Grease) |
150ºC |
|
Mating Axis |
Hardness ≥53HB, Roughness Ra=0.32~0.63 |
|
Alloy Layer Hardness |
60-90HB |
|
Thermal Conductivity |
47W/mk |
|
Coefficient Of Linear Expansion |
18×10-6/K |
|
We can also develop according to customers special request while out of this table |
|
Packing & Shipping
Packing Details:
1. Inner Packing
For small products: 100pcs-200pcs per sealed plastic bag. For bigger products: 2pcs-10pcs per plastic film roller (depends on the product size)
2. Outer Packing&Shipment Packing
8pcs-300pcs per carton (depends on the product size)
18-24 cartons per wood case or pallet, shockproof and safe for transportation.
Company Profile
Our Factory
FAQ
Q: Are you trading company or manufacturer?
A: Our management is focused on exporting activities for more than 10 years and we have our own bushing factory. TEHCO is always professional and reliable. Our advantages are multiple resource integration, strong quality assurance and excellent service level. We are always responsible for our products.
Q: Hong long is your delivery time?
A: Generally 10-25 days after order. It depends on the quantity.
Q: Do you produce samples? Is it free or extra?
A: For standard products, we produce samples free of charge for our customers. And the express costs will be burdened by the customer, but can be returned after the order is placed.
Q: How to ensure the quality?
A: We produce as per the confirmed technology or drawings for each order for our customers. And our factory has a strict quality control system. We inspect goods during production according to a certain frequency and we also perform the final inspection before the goods are packed.
Q: Do you like to serve the customers only with small orders?
A: We are always glad to grow up together with all our customers whatever big or small.
We hope our customers become stronger and stronger to be with us.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Customized: | Customized |
|---|---|
| Certification: | ISO, ISO 9001:2015 |
| Standard Parts: | Standard and Non Standard |
| Customization: |
Available
| Customized Request |
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Considerations for Selecting Appropriate Sliding Bearings
Choosing the right type and size of sliding bearing is crucial for ensuring optimal performance and longevity in various applications. Here are key considerations to keep in mind:
Load and Application: Determine the specific load and application requirements. Different sliding bearings are designed to handle varying loads, speeds, and operating conditions. Consider whether the bearing will experience radial, axial, or combined loads, as well as the expected range of motion.
Material Compatibility: Select materials that are compatible with the operating environment. Consider factors such as corrosion resistance, temperature tolerance, and exposure to chemicals or contaminants. Common bearing materials include bronze, steel, and self-lubricating polymers.
Lubrication: Proper lubrication is essential for reducing friction and wear in sliding bearings. Choose a lubrication method that suits the application, whether it’s grease, oil, or self-lubricating materials. Some sliding bearings are designed for maintenance-free operation.
Design and Configuration: Determine the appropriate bearing design, such as bushings, thrust washers, or linear guides. Consider the bearing’s dimensions, including inner and outer diameter, length, and width. The bearing’s configuration should match the available space and mounting requirements.
Load Distribution: Ensure that the selected sliding bearing can evenly distribute the applied load across its surface. This helps prevent premature wear and ensures the bearing’s longevity. Consider the bearing’s load capacity and how it aligns with the actual load demands.
Friction and Wear: Evaluate the bearing’s coefficient of friction and wear characteristics. Lower friction and wear rates contribute to longer bearing life and improved efficiency. Consider whether the bearing requires initial running-in to reach optimal performance.
Maintenance and Service Life: Consider the maintenance requirements and expected service life of the sliding bearing. Some applications may benefit from bearings with extended maintenance intervals or self-lubricating properties, while others may prioritize easy replacement.
Cost-Efficiency: Balancing performance with cost is essential. While high-performance materials and features can enhance bearing performance, they may also increase the upfront cost. Choose a solution that aligns with your budget and long-term operational goals.
Environmental Conditions: Factor in the environmental conditions the bearing will operate in. For example, marine environments may require bearings with exceptional corrosion resistance, while high-temperature applications demand materials with thermal stability.
Supplier Expertise: Partner with reputable suppliers who offer technical expertise and a range of sliding bearing solutions. Suppliers with a strong track record can provide guidance in selecting the most suitable bearing for your specific application.
By carefully considering these factors, you can confidently choose the appropriate type and size of sliding bearing that meets your application’s requirements and ensures optimal performance and reliability.
Impact of Materials on Sliding Bearing Performance and Durability
The choice of materials used in sliding bearings significantly influences their performance, longevity, and suitability for specific applications. Different materials offer varying characteristics that affect factors such as friction, wear resistance, load capacity, and corrosion resistance. Here are some common materials and their effects:
- Bronze Bearings: Bronze bearings, often made from bronze alloys, offer good load-carrying capacity and resistance to wear. They are suitable for applications with moderate to heavy loads and low to moderate speeds. Bronze bearings also have good heat dissipation properties.
- Steel Bearings: Steel bearings, particularly those made from stainless steel, provide excellent corrosion resistance and are suitable for applications exposed to harsh environments or moisture. Steel bearings are often used in marine and food processing industries.
- Polymer Bearings: Polymer bearings, such as those made from materials like PTFE (polytetrafluoroethylene) or nylon, offer low friction and self-lubricating properties. They are suitable for applications where minimizing friction and wear is critical.
- Composite Bearings: Composite bearings combine different materials to achieve specific performance characteristics. For instance, they might feature a polymer matrix with embedded reinforcing fibers for improved load capacity and wear resistance.
- Graphite Bearings: Bearings with graphite as a lubricating element can operate without additional lubrication in certain conditions, reducing maintenance needs and offering self-lubricating properties.
The selection of materials should consider factors such as the application’s operating conditions, load requirements, speed, temperature, and the presence of corrosive substances. The right material choice ensures optimal performance, durability, and minimal maintenance for sliding bearings.
Design Principles and Functions of Sliding Bearings
Sliding bearings, also known as plain bearings or journal bearings, operate on the principle of providing a low-friction interface between two moving surfaces. The design of sliding bearings is based on creating a film of lubrication between the bearing surface and the shaft or journal it supports. This film of lubrication separates the two surfaces and minimizes direct metal-to-metal contact, reducing friction and wear.
The main components and design principles of sliding bearings include:
- Bearing Material: Sliding bearings are typically made from materials with good wear resistance and self-lubricating properties, such as bronze, brass, or various polymers. These materials help reduce friction and prevent excessive wear.
- Lubrication: Lubrication is crucial for the proper functioning of sliding bearings. It can be provided by an external lubricant, solid lubricants embedded in the bearing material, or a combination of both. The lubrication forms a protective layer that reduces direct contact and minimizes friction.
- Clearance: Sliding bearings are designed with a specific clearance between the bearing and the shaft to accommodate the lubricating film and allow for proper movement. This clearance prevents seizing and binding of the bearing.
- Load Distribution: The design of sliding bearings ensures that the load is distributed over a larger surface area to prevent excessive stress on any single point. This feature is essential for handling heavy loads in industrial applications.
- Alignment and Misalignment: Sliding bearings can tolerate small misalignments between the bearing and the shaft. This flexibility allows them to accommodate minor shifts caused by thermal expansion, vibration, or other factors.
- Heat Dissipation: Sliding bearings can generate frictional heat during operation. Proper design includes features to facilitate heat dissipation and prevent overheating that could lead to premature wear.
- Application-Specific Design: The design of sliding bearings can vary based on the specific application requirements, including load capacity, speed, operating temperature, and environmental conditions.
The functions of sliding bearings include providing support to rotating or sliding shafts, reducing friction, absorbing and distributing loads, allowing for misalignment, and offering smooth movement even in dirty or contaminated environments. Sliding bearings are commonly used in various industrial machinery and equipment, including engines, pumps, conveyors, and manufacturing equipment.
Overall, the design principles and functions of sliding bearings make them suitable for applications where low friction, durability, load-bearing capacity, and adaptability to varying conditions are essential.
editor by CX 2024-03-25
China Custom Sintered Copper Bronze Brass Self Lubricating Sleeve Sliding Shaft Bearing supplier
Product Description
Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!
How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;
2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;
3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;
4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.
5. We can arrange a technical communication meeting with you and our engineers together anytime if required.
| Place of origin: | Jangsu,China |
| Type: | Powder metallurgy sintering |
| Spare parts type: | Powder metallurgy parts |
| Machinery Test report: | Provided |
| Material: | Iron,stainless,steel,copper |
| Key selling points: | Quality assurance |
| Mould type: | Tungsten steel |
| Material standard: | MPIF 35,DIN 3571,JIS Z 2550 |
| Application: | Small home appliances,Lockset,Electric tool, automobile, |
| Brand Name: | OEM SERVICE |
| Plating: | Customized |
| After-sales Service: | Online support |
| Processing: | Powder Metallurgr,CNC Machining |
| Powder Metallurgr: | High frequency quenching, oil immersion |
| Quality Control: | 100% inspection |
The Advantage of Powder Metallurgy Process
1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .
2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.
3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .
4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .
5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten.
FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.
Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good.
Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.
Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.
Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.
Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Customized: | Customized |
|---|---|
| Certification: | IATF16949 |
| Standard Parts: | No |
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Challenges of Lubricant Contamination in Sliding Bearings and Solutions
Lubricant contamination in sliding bearings can lead to various challenges that impact performance and longevity. Here are some challenges and solutions:
Challenge: Reduced Lubrication Effectiveness
Contaminants such as dust, dirt, moisture, and foreign particles can compromise the lubricant’s ability to provide effective lubrication between bearing surfaces.
Solution: Regular maintenance practices involving cleaning and relubrication help remove contaminants and restore the lubricant’s effectiveness. Proper seals and shields can also prevent contaminants from entering the bearing.
Challenge: Increased Friction and Wear
Contaminants in the lubricant can create abrasive particles that increase friction and accelerate wear on bearing surfaces.
Solution: Using high-quality, clean lubricants and implementing effective filtration systems can minimize the presence of contaminants, reducing friction and wear.
Challenge: Component Damage
Contaminants can cause pitting, scratching, and other damage to bearing surfaces, leading to decreased performance and potential bearing failure.
Solution: Regular inspections and cleaning routines are essential to prevent the accumulation of contaminants. Using lubricants with appropriate viscosity and additives can also help protect bearing surfaces.
Challenge: Increased Heat and Temperature
Contaminants can create heat and increase operating temperatures due to increased friction, which can negatively impact bearing performance.
Solution: Clean lubricants with proper viscosity and thermal stability are essential to dissipate heat effectively. Maintaining proper lubrication levels helps manage temperature rise.
Challenge: Corrosion
Moisture and certain contaminants can lead to corrosion of bearing surfaces, which compromises their structural integrity.
Solution: Proper storage and handling of bearings, as well as using corrosion-resistant lubricants, can mitigate the risk of corrosion. Seals and shields also provide additional protection against moisture ingress.
Challenge: Lubricant Breakdown
Contaminants and high operating temperatures can cause lubricants to degrade over time, reducing their lubricating properties.
Solution: Monitoring lubricant condition and replenishing or changing it at appropriate intervals helps maintain its effectiveness. Using lubricants with good oxidation resistance is also important.
Lubricant contamination in sliding bearings can significantly impact their performance and longevity. Implementing proper maintenance practices, using clean and suitable lubricants, and employing effective sealing mechanisms are key strategies to address these challenges and ensure optimal sliding bearing operation.
Impact of Materials on Sliding Bearing Performance and Durability
The choice of materials used in sliding bearings significantly influences their performance, longevity, and suitability for specific applications. Different materials offer varying characteristics that affect factors such as friction, wear resistance, load capacity, and corrosion resistance. Here are some common materials and their effects:
- Bronze Bearings: Bronze bearings, often made from bronze alloys, offer good load-carrying capacity and resistance to wear. They are suitable for applications with moderate to heavy loads and low to moderate speeds. Bronze bearings also have good heat dissipation properties.
- Steel Bearings: Steel bearings, particularly those made from stainless steel, provide excellent corrosion resistance and are suitable for applications exposed to harsh environments or moisture. Steel bearings are often used in marine and food processing industries.
- Polymer Bearings: Polymer bearings, such as those made from materials like PTFE (polytetrafluoroethylene) or nylon, offer low friction and self-lubricating properties. They are suitable for applications where minimizing friction and wear is critical.
- Composite Bearings: Composite bearings combine different materials to achieve specific performance characteristics. For instance, they might feature a polymer matrix with embedded reinforcing fibers for improved load capacity and wear resistance.
- Graphite Bearings: Bearings with graphite as a lubricating element can operate without additional lubrication in certain conditions, reducing maintenance needs and offering self-lubricating properties.
The selection of materials should consider factors such as the application’s operating conditions, load requirements, speed, temperature, and the presence of corrosive substances. The right material choice ensures optimal performance, durability, and minimal maintenance for sliding bearings.
Considerations for Selecting Sliding Bearings
When choosing a sliding bearing for a specific application, several key factors should be taken into consideration:
- Load Capacity: Determine the maximum load the bearing will need to support. This includes both radial and axial loads, as well as any dynamic or static loads.
- Operating Conditions: Consider the operating environment, including temperature, humidity, and exposure to chemicals or contaminants. Different materials and coatings may be required for harsh conditions.
- Lubrication: Choose the appropriate lubrication method based on the application. Consider factors such as the frequency of lubrication, the availability of lubrication points, and the compatibility of lubricants with the bearing material.
- Speed and Motion: Evaluate the speed and type of motion the bearing will experience. Higher speeds may require special considerations for heat dissipation and lubrication.
- Alignment and Misalignment: Determine if the bearing will need to accommodate misalignment between the shaft and the bearing housing. Some applications may require self-aligning or spherical bearings.
- Wear Resistance: Choose a bearing material that offers good wear resistance to prevent premature wear and extend the bearing’s lifespan.
- Noise and Vibration: Consider the impact of noise and vibration on the application. Bearings with proper damping properties can help reduce noise and vibration levels.
- Maintenance Requirements: Assess the ease of maintenance, including lubrication intervals, accessibility of lubrication points, and the need for regular inspections.
- Cost and Availability: Compare the cost of the bearing with its expected performance and lifespan. Also, ensure that the chosen bearing type and size are readily available.
- Application-Specific Considerations: Some applications may have unique requirements, such as corrosion resistance, electrical insulation, or compatibility with food-grade standards.
By carefully considering these factors, you can select a sliding bearing that meets the specific needs of your application, ensuring reliable performance and longevity.
editor by CX 2024-03-02