Self-Lubricating
These bushings are designed to reduce friction and wear without the need for external lubrication, making them ideal for maintenance-free applications.
High Load Capacity
They can withstand significant radial and axial loads, making them suitable for heavy-duty applications.
Corrosion Resistance
Metal-polymer composites often have excellent resistance to corrosion, which is beneficial in harsh environments.
Low Friction
Low Friction: The polymer component reduces friction, leading to smoother operation and longer lifespan.
Noise Reduction
These bushings can help reduce noise and vibration in mechanical systems.
Manufacturing & Production
Metal-polymer composite bearing bushings and a catalog for plain bearings.
Metal-polymer composite bushings are widely used in various applications due to their self-lubricating properties, durability, and ability to operate under high loads and harsh conditions. Applications: Industrial Machinery: Conveyors, pumps, and compressors. Construction Equipment: Excavators, cranes, and bulldozers.
Cost-Effective and Durable, The Ideal Plain Bearing for Every Application
Our plain bearings offer a wide range of bushings designed for industrial and automotive applications. This includes maintenance-free cylindrical and flanged bushings with bronze backing, thrust washers, and versatile strip materials. Metal-polymer composite bushings are an excellent choice for many applications due to their self-lubricating properties and durability. By downloading the manufacturer’s catalog, you can easily find the right bushing for your needs and ensure optimal performance of your mechanical systems. If you need further assistance or specific part numbers, feel free to ask!
Look for a section dedicated to plain bearings or bushings.
Contact Our Customer Support: If you can’t find the catalog online, reach out to the manufacturer’s customer support for assistance.
Provide Part Numbers: When requesting a replacement bushing, make sure to have the part number ready. This will help ensure you get the exact match for your application.
Provide Part Numbers: When requesting a replacement bushing, make sure to have the part number ready. This will help ensure you get the exact match for your application.
Supplies advanced materials for bushings and bearings.
We proudly supply a diverse and readily available range of in-stock bushings that are precisely engineered to deliver dependable performance in rotating, oscillating, and linear motion applications. In addition, our catalogue features an extensive, high-quality assortment of durable metal-polymer composite bushings for varied specific operational requirements.
Manufacturing on Demand
Manufacturing on Demand
Bushing Selection Overview: Flanged and Maintenance-Free Bronze-Backed Bushings
Our bushing catalog offers an intuitive guide to help you choose the ideal bushing for your needs. It includes key specifications such as temperature limits, friction coefficients, load capacities, sliding speeds, and shaft recommendations, ensuring optimal compatibility and performance for a variety of applications. This comprehensive resource provides detailed insights into our bushings and related products to meet diverse mechanical and engineering requirements.
For fast delivery and customized components in non-stock sizes, refer to our PDF catalog for detailed specifications.
Supplier of Stainless Steel Bushings
We are a trusted supplier of stainless steel bushings, providing advanced tools for designing plain bushings. Our services include installation, lubrication, condition monitoring, and reconditioning.
Flanged, Maintenance-Free Bushings with Steel Backing
Explore our collection of maintenance-free, steel-backed flanged bushings, designed for long-lasting performance in demanding environments.
Overview of Metal-Polymer Self-Lubricating Bearings
This brochure highlights our range of metal-polymer self-lubricating bearings, including cylindrical and flanged bushings, washers, and strips in both metric and imperial sizes. It covers standard options, testing methods, installation guidelines, customization possibilities, and selection calculations based on load, speed, and application needs. These versatile plain bearings are ideal for industries such as agriculture, automotive, construction, commercial transport, hydraulics, industrial transmissions, printing, pumps, renewable energy, and more.
Common Materials Include:
- Solid Bronze: Known for its durability and wear resistance, solid bronze bushings are perfect for demanding environments, effectively handling shock loads and vibrations.
- Wrapped Bronze: These bushings feature lubrication pockets that release grease during operation, making them ideal for use in contaminated environments.
Polymers:
- PTFE (Polytetrafluoroethylene): This thermoplastic offers excellent self-lubricating properties, making it ideal for low-friction applications.
- POM (Polyoxymethylene): Commonly used in composite bushings, POM provides strong wear resistance and is well-suited for high-load conditions.
Composite Materials: Combining metal and polymer, these bushings offer improved load capacity and thermal stability.
Bushing Catalog Overview: Types of Bushings
Our comprehensive catalog features various bushing options, including straight and wrapped bronze, PTFE composites, POM composites, PTFE polyamide, and filament-wound bushings. It offers detailed specifications on dimensions, material composition, and the benefits of each type, including the maintenance-free nature of PTFE polyamide bushings. The catalog also compares materials based on self-lubrication, maintenance requirements, durability in harsh environments, corrosion resistance, and load capacity.
Explore our range of maintenance-free, steel-backed bushings, precision components, systems, and self-lubricating bearing solutions. Contact us for more information on our bushings and technologies.
Explore More
Discover our maintenance-free PTFE bushings and plain bearings from China, providing reliable solutions for your engineering needs.
The Ultimate Guide to Navigating Any Online Bushing Catalog
Staring at an online bushing catalog can feel overwhelming. You’re faced with thousands of part numbers, cryptic material codes, and pages of technical data. How do you find the one component that won’t fail in your application?
The secret is to see the catalog not as a parts list, but as a powerful engineering guide.
Whether you’re a seasoned designer, a maintenance professional, or a purchasing agent, this guide will teach you how to decode any online plain bearing catalog. We’ll move beyond the surface-level data to help you select the perfect bushing with confidence.
The First Step: Decoding Bushing Materials
Before you even look at dimensions, you must choose a material family. The material dictates everything: load capacity, speed limit, temperature range, and lubrication needs. Most online catalogs group their products this way.
Here’s a breakdown of the common types to help you make a clear choice:
| Material Type | Best For… | Key Considerations | Lubrication Method |
| Metal-Polymer Composite | High loads and moderate speeds where external lubrication is impossible or undesirable. Excellent for compact designs. | Typically has a steel backing, so environmental corrosion must be considered. | Self-lubricating (solid lubricant layer) |
| Engineered Polymer | Wet or corrosive environments, food-grade applications, and situations where low weight is critical. | Generally lower load capacity and temperature limits compared to metallic options. | Self-lubricating (lubricants embedded in the polymer) |
| Sintered Bronze | General-purpose industrial machinery with medium loads and speeds. A classic, reliable choice. | The impregnated oil dictates the temperature range and can dry out over time or at high temperatures. | Self-lubricating (oil-impregnated pores) |
| Solid Bronze | Extremely high loads, slow oscillating movements, and harsh, abrasive environments. | Requires consistent external lubrication (grease or oil) to function. Without it, it will fail quickly. | External Lubrication Required |
By understanding this fundamental trade-off, you can immediately narrow your search to the correct section of the catalog.
Navigating Dimensional Data Like a Pro
Once you’ve selected a material, you’ll land on the data tables. This part is straightforward. The key dimensions for a plain sleeve bushing are:
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d: Inner Diameter (ID) – This must match your shaft’s diameter.
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D: Outer Diameter (OD) – This must fit your housing bore.
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L/B: Length – The nominal length of the bushing.
For flanged bushings, you will also find dimensions for the flange diameter and thickness. Part numbers are often a direct reflection of these dimensions, making them easy to identify.
The Engineer’s Secret Weapon: The PV Value
Here is the single most important technical specification in any self-lubricating bushing catalog: the PV Value. Ignoring it is the #1 reason for premature bearing failure.
What is PV?
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P (Pressure): The load on the bushing, spread over its projected area.
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V (Velocity): The surface speed of the shaft rotating inside the bushing.
The PV Limit listed in the catalog is the maximum combination of pressure and velocity the bushing can handle before the heat generated by friction causes the material to break down and fail.
Your application’s PV must be less than the catalog’s PV limit.
How to Calculate Your Application’s PV
1. Calculate Pressure (P)
This measures the stress on the bearing material.
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Formula: P (MPa) = Load (N) / [ Inner Diameter (mm) x Length (mm) ]
2. Calculate Surface Velocity (V)
This measures how fast the shaft is moving against the bearing surface.
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Formula: V (m/s) = [ π x Inner Diameter (mm) x RPM ] / 60,000
3. Calculate the Final PV Value
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Formula: PV = P x V
Example:
You have a 1,000 N load on a 20mm shaft spinning at 100 RPM, using a bushing that is 30mm long.
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P = 1000 / (20 x 30) = 1.67 MPa
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V = (3.14 x 20 x 100) / 60000 = 0.105 m/s
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PV = 1.67 x 0.105 = 0.175 MPa·m/s
Now, you would check the catalog for your chosen material. If its PV limit is, for example, 1.2 MPa·m/s, your application is well within the safe operating range.
Don’t Forget the Details: Fits, Tolerances, and Shafts
A high-quality online catalog provides more than just part numbers. Look for an engineering or technical section. It will contain critical information on:
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Housing & Shaft Fits: The catalog will recommend specific tolerances (e.g., H7 for the housing, g6 for the shaft) to ensure a proper press-fit and the correct running clearance. If the fit is too tight, the shaft will seize; too loose, and the bushing will spin in the housing.
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Shaft Surface Finish: For optimal life, the shaft shouldn’t be too rough (which would abrade the bushing) or too smooth (which can hinder the transfer of self-lubricating films). The catalog will specify an ideal Ra (surface roughness) value.
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Shaft Hardness: A harder shaft is always better, as it resists wear and creates a better mating surface for the bushing.
Your Step-by-Step Selection Process
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Define Your Needs: List your application’s Load, Speed, Temperature, and Environment (wet, dry, etc.).
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Choose a Material Family: Use our chart above to select the right category.
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Find Your Dimensions: In the online catalog, filter by the material and find the part with the correct ID, OD, and Length.
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Perform the PV Check: Calculate your application’s PV value. Confirm it is safely below the catalog’s stated PV limit for that material.
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Verify Mating Surface Specs: Check the recommended shaft hardness and surface finish.
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Select Your Part: With all conditions met, you can confidently select your final part number.
You are now equipped to master any online bushing catalog. By moving from material to dimensions and finishing with the critical PV check, you transform a confusing list into a precision engineering tool.
Ready to put this knowledge into practice? Explore our comprehensive online catalog, complete with technical data and calculation tools, to find the perfect component for your next project. Visit us at www.viiplus.com to get started.
