Where to get bearings near me? This guide will navigate you through a comprehensive exploration of bearing acquisition, from local retailers to online ordering, and everything in between. Whether you’re a seasoned mechanic or a DIY enthusiast, understanding bearing types, sizes, and selection criteria is key to successful projects. We’ll delve into the crucial factors impacting your choice, from load capacity to environmental considerations, offering clear and concise information to empower your decision-making process.
From identifying the perfect ball bearings for your next woodworking project to understanding the intricate role of roller bearings in industrial machinery, this resource will equip you with the knowledge to make informed decisions. We’ll explore the diverse applications of bearings, offering practical insights into how they power our world, and discuss maintenance and troubleshooting to keep your bearings performing at their best.
This detailed guide will help you locate local suppliers, compare types, understand specifications, and ultimately, make the best bearing choices for your needs.
Local Bearing Retailers
Finding the right bearings for your project can feel like a treasure hunt, but it doesn’t have to be! Knowing where to look can save you time and frustration, and finding a local retailer can mean quicker delivery and better support if you need help. Let’s explore your options.
Online Bearing Retailers
A wealth of options awaits you online. Reputable online retailers stock a vast array of bearing types, sizes, and brands, often offering competitive pricing and convenient delivery. This often allows for a wide comparison of options.
- Bearing Supply Hubs: These online retailers specialize in bearings, often providing detailed product specifications and technical support. This detailed information can be crucial for making the right choice.
- General Hardware Stores: Many major hardware stores have online storefronts and sell a wide range of bearings, from basic ball bearings to specialized industrial types. They can be a convenient option if you need bearings alongside other hardware.
- Industrial Supply Companies: For larger orders or specialized bearings, consider industrial supply companies. They typically have a wider selection and can handle larger quantities.
Locating Local Retailers
Finding a local bearing retailer is straightforward. This can save you shipping time and let you inspect the bearings in person. This is particularly helpful for unusual or custom needs.
- GPS Navigation: Using a GPS app, search for “bearing retailers near me.” This will provide a list of nearby retailers with bearing inventories. Many GPS apps also allow you to filter results by type of store or other criteria.
- Online Search Engines: Utilize search engines like Google, Bing, or DuckDuckGo. Enter “bearing retailers near me” or “bearing suppliers [your city].” The results will usually include local stores and their contact information. Refine your search with specific bearing types if needed, such as “ball bearing retailers near me.”
Retailer Information
For easy reference, here’s a table listing common information about bearing retailers. This can be extremely useful for planning your procurement.
| Retailer Name | Address | Phone Number | Website |
|---|---|---|---|
| ABC Bearing Solutions | 123 Main Street, Anytown, CA 91234 | 555-1212 | www.abcbearings.com |
| XYZ Bearing Co. | 456 Elm Avenue, Anytown, CA 91235 | 555-3456 | www.xyzbearings.com |
| Bearing Depot | 789 Oak Street, Anytown, CA 91236 | 555-5678 | www.bearingdepot.com |
Types of Bearings
Bearings are the unsung heroes of machinery, enabling smooth and reliable motion. Understanding the various types and their applications is key to selecting the right bearing for a specific task. From the familiar to the specialized, each type offers a unique set of characteristics and performance attributes.
Ball Bearings
Ball bearings utilize small, hard steel balls to facilitate rotation between moving parts. Their simple design translates to a low cost, high load capacity, and high speed capabilities. They are a ubiquitous choice in everyday machinery, from bicycles to automobiles.
- Applications: Ball bearings are prevalent in applications demanding smooth, high-speed rotation, such as electric motors, gearboxes, and automotive components like wheels and axles. Their ability to handle significant loads makes them ideal for industrial machinery.
- Characteristics: Ball bearings excel in high-speed applications due to their low friction. They also exhibit good load capacity, and a simple design.
Roller Bearings
Roller bearings utilize cylindrical rollers instead of balls. This design variation introduces different characteristics, especially regarding load capacity and speed capabilities. The type of roller (e.g., cylindrical, tapered, needle) affects the specific application.
- Applications: Roller bearings are commonly found in applications requiring high load capacity or specific load orientations, such as heavy machinery, conveyor systems, and some automotive components. The specific type of roller bearing (e.g., cylindrical, tapered) is tailored to the application’s unique demands.
- Characteristics: Roller bearings typically exhibit higher load capacity compared to ball bearings, especially under radial loads. Their ability to handle axial loads also sets them apart. However, they may not perform as well at very high speeds due to the increased friction from the rollers.
Thrust Bearings
Thrust bearings are specifically designed to handle axial loads, the forces pushing or pulling along the axis of rotation. They are essential in applications where these forces are significant.
- Applications: Thrust bearings are critical in applications where shafts experience significant axial loads, such as pumps, compressors, and high-speed machinery. Their ability to support these forces ensures proper alignment and operation.
- Characteristics: Thrust bearings are specifically designed to handle axial loads. They are typically used in conjunction with other bearings to support the entire load. The specific design of the thrust bearing (e.g., tilting-pad, hydrostatic) is crucial for optimal performance.
Comparison Table, Where to get bearings near me
| Bearing Type | Properties | Advantages | Disadvantages |
|---|---|---|---|
| Ball Bearings | Low friction, high speed, moderate load capacity | Low cost, wide availability, smooth operation at high speeds | Limited load capacity in high-load applications |
| Roller Bearings | High load capacity, moderate speed | Excellent load capacity, good for high-load, heavy machinery | Higher friction compared to ball bearings at high speeds |
| Thrust Bearings | Designed for axial loads | Critical for supporting axial forces, maintains proper shaft alignment | More complex design, higher cost |
Bearing Sizes and Specifications
Picking the right bearing is crucial for a smooth operation, whether it’s a tiny watch mechanism or a massive industrial machine. Understanding bearing sizes and specifications is key to getting the best performance and longevity from your chosen bearing. It’s like choosing the perfect pair of shoes for a marathon – you need the right fit for optimal performance and comfort.Accurate bearing selection hinges on understanding the critical dimensions and properties.
This involves more than just the outside diameter; factors like bore size, width, and the type of bearing (ball, roller, etc.) all play a role. The right bearing will seamlessly integrate into the system, minimizing friction and maximizing efficiency.
Bearing Dimensions and Tolerances
Bearing dimensions are precisely defined to ensure proper fit and function. Understanding tolerances is vital. Too tight a fit can lead to premature failure due to excessive stress, while a loose fit will cause instability and vibration. Knowing the acceptable tolerances for each application is essential.
Key Specifications for Selection
Various factors influence bearing selection. Internal and external diameters, width, and the type of bearing (e.g., ball bearing, roller bearing) are crucial. The load capacity, speed, and operating environment further refine the selection.
Bearing Types and Their Applications
Different bearing types cater to various needs. Ball bearings are excellent for high-speed applications, while roller bearings are better suited for heavy-duty loads. Choosing the right type for the specific application is vital for maximizing performance. This is like picking the right tool for the job – a screwdriver for screws, a wrench for nuts and bolts.
Determining the Right Bearing Size
To determine the appropriate bearing size, consider the load, speed, and operating environment. A thorough understanding of the application’s specific requirements is essential. Consider the space constraints and the desired lifespan. A properly sized bearing will operate reliably and efficiently.
Example Table of Bearing Sizes and Specifications
| Bearing Size (mm) | Bore Diameter (mm) | Outer Diameter (mm) | Width (mm) | Load Capacity (kg) | Application |
|---|---|---|---|---|---|
| 608 | 8 | 22 | 15 | 1000 | General-purpose applications |
| 6203 | 20 | 40 | 15 | 1500 | High-speed applications |
| 6300 | 25 | 47 | 20 | 2000 | Heavy-duty applications |
Selecting the right bearing size is crucial for the smooth operation and long life of a machine. A well-chosen bearing will minimize friction and maximize efficiency.
Bearing Selection Criteria: Where To Get Bearings Near Me
Choosing the right bearing is crucial for the smooth and reliable operation of any machine. It’s not just about finding a bearing thatfits*; it’s about selecting one that can withstand the specific demands of its application. Understanding the factors influencing bearing performance is key to ensuring longevity and optimal performance.Bearing selection is a multifaceted process, and a deep understanding of the application’s specific needs is paramount.
This includes careful consideration of load characteristics, operational speeds, and the environmental conditions where the bearing will be used. Material selection is also vital for maximizing bearing life and performance in a given context.
Load Capacity Considerations
Proper load capacity assessment is fundamental to bearing selection. Bearings must be capable of handling the expected loads, whether static or dynamic. Consider the magnitude and direction of the loads, as well as the load distribution across the bearing. A critical factor is understanding the load type (radial, thrust, or combined). For example, a bearing designed for radial loads will likely fail under heavy thrust loads.
Speed Considerations
Operational speed is another crucial parameter in bearing selection. High speeds can lead to increased friction and potential wear, necessitating the use of bearings specifically designed for higher rotational speeds. The bearing’s dynamic capacity directly correlates with the operating speed. The higher the speed, the more important it is to choose a bearing with a high fatigue life rating.
Environmental Considerations
Environmental conditions can significantly impact bearing performance. Factors like temperature, humidity, and the presence of corrosive substances must be accounted for. Corrosion resistant materials, such as those with specific coatings, might be necessary to ensure extended lifespan in demanding environments. For instance, a bearing operating in a highly corrosive chemical environment would require a specific material to avoid premature failure.
Material Selection Importance
The choice of bearing material is vital for achieving optimal performance and lifespan. Different materials possess varying strengths, tolerances, and resistances to corrosion, heat, and wear. Selecting the right material for the application is essential for minimizing maintenance requirements and maximizing reliability. For example, a bearing operating in high-temperature conditions may require a heat-resistant material.
Bearing Selection Factors Table
| Factor | Description | Importance |
|---|---|---|
| Load Capacity | Magnitude and type of loads (radial, thrust, combined) | Ensures the bearing can handle the applied forces without failure. |
| Speed | Rotational speed of the application | Impacts friction and wear; high-speed bearings are crucial for high-speed applications. |
| Environment | Temperature, humidity, corrosive substances, etc. | Determines the bearing’s resistance to the operating environment. |
| Material | Material composition of the bearing | Influences strength, durability, and resistance to environmental factors. |
Online Bearing Ordering
Finding the perfect bearing online is like treasure hunting—but with fewer pirates and more precise specifications. The digital marketplace offers a vast selection, often at competitive prices, making it a convenient option for many. This approach allows you to compare products, read reviews, and ultimately, make informed decisions.
Locating Bearings Online
The internet is a vast library of bearing information. Searching effectively is key to finding the right ones. Start by using precise s—the more specific, the better. For instance, instead of “ball bearings,” try “high-precision, 20mm ball bearings for industrial use.” Using filters, like those found on many online retailers’ sites, will significantly narrow down your search.
These filters usually allow you to specify bearing type, size, material, and other critical features. Combining precise s with intelligent filtering is the most efficient way to locate bearings online.
Placing an Online Order
Ordering bearings online is a straightforward process, generally similar across retailers. First, select the bearings that meet your needs, carefully reviewing the details. Review the product page thoroughly, paying attention to the specifications, materials, and dimensions. Next, add the desired bearings to your cart. Double-check the quantity and make sure everything is correct.
Proceed to checkout, providing your shipping address and payment information securely. Finally, review your order summary, ensuring accuracy before submitting. By following these steps, your order will be on its way!
Checking Reviews and Ratings
Before committing to an online purchase, scrutinize customer reviews and ratings. They provide valuable insights into the product’s quality, performance, and reliability. Look for patterns in the reviews—do customers consistently praise a specific aspect, or are there recurring issues? Reading reviews gives you a more comprehensive understanding of the product and the vendor’s reputation. Remember, reviews offer a real-world perspective, helping you make a more informed buying decision.
Reliable Online Retailers
Numerous online retailers provide a wide array of bearings. Some of the most reliable include reputable distributors specializing in industrial parts, or e-commerce platforms known for their comprehensive inventory and secure transactions. These retailers often have dedicated support teams, helping with any questions or concerns. They often maintain detailed product pages, complete with specifications, diagrams, and customer testimonials.
By selecting these retailers, you ensure a smooth and trustworthy online bearing purchasing experience.
Bearing Maintenance and Troubleshooting
Keeping your bearings in tip-top shape is crucial for the longevity and smooth operation of any machine. Proper maintenance prevents costly repairs and downtime. This section provides a practical guide to maintaining your bearings and troubleshooting potential issues.Understanding the signs of a failing bearing empowers you to address problems early, potentially saving significant expenses and preventing equipment failure.
Early intervention is often more economical than replacing a completely worn-out bearing.
Common Maintenance Practices
Regular lubrication is essential for bearing health. Proper lubrication reduces friction and wear, extending the life of the bearing significantly. Different types of bearings require different lubricants; always consult the manufacturer’s specifications. Cleaning the bearing area to remove debris and contaminants is another key practice. This prevents abrasive particles from causing accelerated wear and tear.
Inspecting for visible damage or unusual sounds is also crucial for proactive maintenance.
Troubleshooting Bearing Issues
Identifying the root cause of a bearing problem is paramount for effective resolution. The first step in troubleshooting is careful observation. Look for any signs of unusual noises, like grinding, humming, or clicking. Note the location of the noise, as this can help pinpoint the source. Check for visible signs of damage, such as cracks, pitting, or excessive wear.
Temperature monitoring is also vital. Overheating can be a significant indicator of bearing failure. A rise in temperature beyond the manufacturer’s specifications warrants immediate attention.
Signs of a Failing Bearing
Several indicators signal a failing bearing. A noticeable increase in friction, resulting in increased noise levels or vibrations, is a common symptom. Changes in operating speed or output are also cause for concern. A grinding or screeching sound is an obvious sign of significant wear. A visibly worn bearing housing, showing excessive play or damage, is another clear indication of potential failure.
These signs, when identified early, can often prevent catastrophic equipment failure.
Identifying and Replacing a Worn-Out Bearing
Accurate identification of a worn-out bearing involves a systematic process. First, ensure the machine is safely shut down and de-energized. Disconnect any power sources and remove any potential hazards. Consult the equipment’s manual for specific procedures and safety precautions. Using the proper tools, carefully dismantle the affected area to access the bearing.
Compare the condition of the old bearing to the manufacturer’s specifications and diagrams to determine if it needs replacement. Replacing a worn-out bearing with a correctly sized and specified replacement is essential for restoring optimal performance. Follow the manufacturer’s instructions precisely for proper installation. Using incorrect tools or procedures during replacement can lead to damage. After reassembly, thoroughly test the equipment to confirm the bearing is operating correctly.
Bearing Installation and Replacement
Getting bearings installed or replaced correctly is crucial for smooth operation and extended lifespan of your machinery. Proper techniques prevent premature wear, costly repairs, and potential safety hazards. This section details the essential steps and safety precautions for successful bearing installations and replacements.Bearing installation and replacement are not just about fitting a part; they are about precision, safety, and understanding the mechanical context.
Each step has a purpose, and skipping any of them can lead to problems down the line. This comprehensive guide will equip you with the knowledge and confidence to handle this task effectively.
Proper Bearing Installation Techniques
Understanding the nuances of bearing installation is paramount. Different bearing types and applications require specific procedures. The key is precision, ensuring proper alignment and lubrication for optimal performance. Incorrect installation can lead to premature failure.
- Thoroughly clean the mounting surfaces to remove any debris or contaminants. This ensures a clean and proper contact between the bearing and the housing, preventing friction and potential damage.
- Inspect the bearings for any damage or defects. Ensure the bearings are free of scratches, dents, or other imperfections that could compromise their integrity.
- Apply a thin film of lubricant to the bearing races and inner rings before installation. This lubricant will reduce friction and allow for smoother rotation.
- Use appropriate installation tools and techniques to ensure precise alignment. Avoid using excessive force, as this can damage the bearing or the housing.
- Ensure proper preload is applied to the bearing. This is crucial for achieving the desired level of support and stability. Over-tightening can damage the bearing or the housing, under-tightening can lead to instability.
Detailed Steps for Replacing Bearings
Replacing bearings effectively requires careful planning and execution. Following a step-by-step process will help ensure a successful replacement and minimize potential issues.
- Disassembly: Carefully remove any components surrounding the bearing. This might involve removing fasteners, securing brackets, or disengaging the shaft from the housing. Ensure to note the exact positioning of components to facilitate reassembly.
- Bearing Removal: Use appropriate tools to remove the old bearing from the shaft or housing. This often involves using a bearing puller or similar tools. Carefully remove the bearing without damaging it or the surrounding components. Inspect the shaft or housing for any damage caused during removal.
- Cleaning: Thoroughly clean the shaft and housing surfaces where the bearing was mounted. This will ensure a clean and proper installation for the new bearing.
- Preparation: Ensure the new bearing is compatible with the shaft and housing. Verify its dimensions and tolerances to ensure a proper fit. Apply a thin layer of lubricant to the bearing raceways and inner rings of the new bearing.
- Bearing Installation: Carefully place the new bearing onto the shaft or housing. Ensure the bearing is correctly oriented and aligned with the housing. Use appropriate tools to press or install the bearing, ensuring a precise fit.
- Reassembly: Carefully reassemble all the components in the reverse order of disassembly. Ensure all fasteners are tightened to the appropriate torque specifications. Thoroughly inspect the reassembled unit for proper function.
Safety Precautions During Installation and Replacement
Safety should always be a top priority during any mechanical work. Adhering to safety precautions can prevent injuries and ensure a safe working environment.
- Personal Protective Equipment (PPE): Always wear appropriate safety glasses, gloves, and other PPE to protect yourself from flying debris or potential hazards.
- Proper Handling of Tools: Use tools appropriately and carefully to avoid accidents. Ensure tools are in good working condition and properly secured before use.
- Working in a Well-Lit Area: Ensure the work area is well-lit to avoid accidents or mishaps due to poor visibility. Use appropriate lighting if needed.
- Proper Lifting Techniques: When lifting heavy components, use proper lifting techniques to avoid strains or injuries. Ask for help if needed.
Step-by-Step Guide on Replacing a Bearing (with Image Descriptions)
Imagine a shaft with a worn-out bearing. The shaft is round, and the bearing is a cylindrical component sitting in the housing.
1. (Image 1)
A close-up view of the disassembled bearing assembly. You’ll see the old bearing, the shaft, and the housing. Note the position of each component. (Image description)
2. (Image 2)
A technician using a bearing puller to carefully remove the old bearing from the shaft. (Image description)
3. (Image 3)
A clean shaft and housing, ready for the new bearing. The surfaces are free of debris. (Image description)
4. (Image 4)
The new bearing is positioned on the shaft, lubricated and aligned correctly. (Image description)
5. (Image 5)
The technician carefully presses the new bearing into the housing using the correct tools. (Image description)
6. (Image 6)
The bearing is fully installed, and all components are reassembled. (Image description)
7. (Image 7)
Final inspection of the reassembled unit, confirming proper alignment and functionality. (Image description)
Bearing Applications
Bearings, those unsung heroes of machinery, quietly enable a world of motion. From the whirring gears of a clock to the roaring engines of a jet, bearings are the silent facilitators of smooth, efficient operation. They are crucial components in countless devices, ensuring reliability and performance.A multitude of industries depend on bearings for their day-to-day operations. Their ability to reduce friction, withstand stress, and maintain precise alignment makes them indispensable.
This section dives into the fascinating world of bearing applications, highlighting their diverse roles and showcasing their critical impact.
Bearing Applications in Machinery
Bearings are the unsung heroes of machinery, enabling smooth and efficient operation. They are the quiet workhorses that keep everything running. From simple hand tools to complex industrial equipment, bearings are essential for ensuring smooth motion and minimizing wear and tear.
- Printing Presses: Imagine the relentless pressure and precise movements required to print a newspaper. Bearings enable the rollers and other components to rotate with minimal friction, ensuring consistent print quality and preventing jamming.
- Construction Equipment: The massive excavators, bulldozers, and cranes on construction sites rely heavily on bearings. These robust components handle immense loads and continuous operation, enabling the machines to perform their tasks efficiently.
- Agricultural Machinery: Tractors, harvesters, and other agricultural equipment rely on bearings for their smooth operation. The constant turning and shifting of components are managed effectively by bearings, ensuring consistent output and reducing downtime.
- Textile Machinery: In the textile industry, the continuous operation of looms, spindles, and other machinery relies on bearings to minimize friction and maximize production. Bearings are crucial to the efficiency of this industry.
Bearing Applications in Vehicles
Bearings are vital for ensuring smooth operation in vehicles of all types. From bicycles to airplanes, the ability of bearings to withstand stress and provide precise alignment is essential. They are often the silent guardians of our transportation systems.
- Automotive: Car engines, transmissions, and wheels rely on bearings for smooth operation. The precise alignment and low friction enabled by bearings contribute to fuel efficiency and a comfortable ride. The bearings in a vehicle’s suspension system are also crucial to absorbing shocks and vibrations.
- Aircraft: Aircraft engines and components utilize sophisticated bearing systems to withstand the extreme forces and temperatures experienced during flight. Bearings are vital to ensure the smooth operation of the engine and maintain flight stability.
- Ships: Ship engines, propellers, and other components use bearings to function smoothly in the challenging marine environment. The ability of bearings to handle the significant forces and vibrations is critical to the safety and efficiency of ships.
Bearing Applications in Specific Machines
Consider a sophisticated machine like a high-speed CNC milling machine. Its precision movements depend on bearings to maintain alignment and minimize friction. The intricate dance of cutters and components, precisely controlled by the CNC, relies on the unwavering performance of the bearings.
- CNC Milling Machines: High-speed CNC milling machines use precision bearings to allow the cutting tools to move with the desired accuracy and speed. These bearings are crucial for maintaining the machine’s precision and preventing errors.
- Robotics: The smooth and precise movements of robotic arms and manipulators are directly dependent on bearings. The seamless transition of joints and components is essential for the accuracy and efficiency of the robots.
- Industrial Fans: Industrial fans rely on bearings to ensure smooth and continuous operation. The fan blades require a constant and precise rotation to maintain airflow and efficiency. The bearings enable the fans to perform their function without excessive friction or wear.
Bearing Materials and Properties
Choosing the right bearing material is crucial for optimal performance and longevity. Different materials react differently to load, speed, temperature, and environmental conditions. Understanding these properties allows for informed decisions, ensuring bearings meet the demands of their specific application.The selection process for bearing materials involves a careful balance of factors. Cost, availability, and ease of manufacturing are also key considerations.
A thorough understanding of each material’s strengths and weaknesses is paramount to selecting the ideal bearing for the job.
Materials Used in Bearing Manufacturing
Various materials are used in bearing manufacturing, each with its unique characteristics. Understanding these characteristics allows for informed choices based on specific application requirements.
- Steel: Steel is a prevalent choice due to its high strength and durability. It offers excellent load-bearing capacity and is relatively inexpensive. High-carbon steel, for instance, is often used for bearings requiring exceptional strength and hardness.
- Bronze: Bronze, an alloy of copper and tin, is known for its excellent corrosion resistance and self-lubricating properties. Its use is particularly suited for applications where lubrication is challenging or where moisture is present. Bronze bearings are often found in marine environments or other harsh conditions.
- Ceramic: Ceramic bearings offer exceptional load-carrying capacity at high speeds and temperatures. They exhibit excellent wear resistance and are known for their low friction. However, their brittleness must be considered, limiting their use in applications involving high shock loads.
- Polymers: Polymeric materials, such as nylon and PTFE, are often chosen for their low friction and self-lubricating properties. They are particularly suitable for applications requiring low-cost solutions, or where operating conditions are relatively mild.
Properties of Bearing Materials
The performance of a bearing is directly linked to the material’s properties. These include strength, hardness, wear resistance, and corrosion resistance. Each property plays a vital role in the bearing’s longevity and suitability for a given application.
- Strength: The ability of a material to withstand applied forces without deformation is critical. A bearing material’s strength directly influences its load-carrying capacity. High-strength materials are essential in heavy-duty applications.
- Hardness: A material’s resistance to scratching and indentation is known as hardness. This property is vital for preventing wear and tear, especially under high-load conditions. Hard materials generally have better wear resistance.
- Wear Resistance: This property describes a material’s ability to withstand abrasion and friction. High wear resistance is crucial in applications experiencing significant mechanical contact. Materials like hardened steel demonstrate excellent wear resistance.
- Corrosion Resistance: The ability of a material to resist degradation from chemical attack, such as rust or oxidation, is critical in environments with moisture or chemicals. Materials like stainless steel or corrosion-resistant bronze are preferred in such environments.
Durability and Corrosion Resistance Comparison
Different bearing materials exhibit varying levels of durability and corrosion resistance. This difference significantly impacts their suitability for specific applications. A material’s ability to withstand environmental factors and maintain its structural integrity is a key consideration.
| Material | Durability | Corrosion Resistance | Typical Applications |
|---|---|---|---|
| Steel | High | Moderate (depending on alloying) | General machinery, heavy-duty equipment |
| Bronze | Moderate | High | Marine environments, applications with moisture |
| Ceramic | High (at low speeds and shock loads) | High | High-speed, high-temperature applications |
| Polymers | Low to Moderate | Variable | Low-load, low-speed applications |
