Tempered bronze sliding bearings, particularly oilless sleeve bearings, are highly valued for their durability, wear resistance, and ability to operate without lubrication, making them ideal for high-strain and impact-load applications. Here’s a detailed overview of the product and its suppliers in China:
Key Features of Tempered Bronze Sliding Bearings
Material and Durability:
Made from tempered bronze alloys, these bearings offer exceptional wear resistance, strength, and corrosion resistance. The hardness of tempered bronze is significantly higher than standard bronze, enhancing its performance in demanding environments 1.
Some variants include graphite plugs or impregnated graphite, which provide self-lubricating properties, reducing maintenance needs and extending service life 18.
Oilless Design:
These bearings are designed to operate without lubrication, making them suitable for applications where lubrication is impractical or undesirable. This feature also reduces operational costs and enhances efficiency.
Customization:
Suppliers offer customized sizes and designs to meet specific application requirements. This includes non-standard dimensions, flanged designs, and specialized features like helical grease grooves for improved lubrication.
Applications:
Widely used in industries such as marine hardware, construction machinery, plastic injection machines, hydraulic systems, and power generation. They are also suitable for high-temperature and high-load environments.
Chinese Suppliers
VIIPLUS:
A trusted supplier specializing in tempered bronze sliding bearings. They provide high-quality, self-lubricating bearings with certifications like DIN 1850, ISO 4379, and UNS standards. Their products are known for precise machining and excellent surface finishes.

Offers high-performance oilless graphite linear sleeve bearings with customizable sizes. Their products are made from CuZn25Al6Fe3Mn3 bronze alloy and are suitable for aerospace, automotive, and heavy machinery applications 24.

Specializes in oilless bronze bearings with a focus on customization. They provide a wide range of products, including solid lubricant-embedded bushes and flanged bearings, catering to industries like automotive, construction, and energy .
Known for producing self-lubricating bearings with tin bronze substrates and PTFE-based polymer surfaces. Their products are designed for low friction, high wear resistance, and maintenance-free operation .

A professional manufacturer of self-lubricating bearings, offering high-quality graphite bronze bearings with advanced QC processes and testing facilities.
Advantages of Sourcing from China
Cost-Effectiveness: Chinese suppliers offer competitive pricing due to large-scale production capabilities.
Customization: VIIPLUS provide tailored solutions to meet specific industrial needs .
Quality Assurance: Products often meet international standards like ISO, DIN, and ASTM, ensuring reliability and performance .
Conclusion
Tempered bronze sliding bearings from Chinese suppliers are a reliable choice for high-performance, low-maintenance applications. With options for customization and a wide range of industrial uses, these bearings are well-suited for demanding environments.


We, as a trusted supplier from China, specialize in offering high-quality tempered bronze sliding bearings that are designed for exceptional performance and durability. These bearings are made from tempered bronze alloys, which are known for their excellent wear resistance, strength, and corrosion resistance.
The sliding bearings we provide are oilless sleeve bearings, meaning they do not require lubrication, reducing maintenance costs and enhancing operational efficiency. This feature is particularly beneficial in applications where lubrication is not feasible or desired.
We understand that every application has unique requirements, and therefore, we offer customized sizes to cater to your specific needs. Wh you need a bearing that is larger or smaller than standard sizes, or has specific dimensions, we can provide you with a customized solution that perfectly fits your application.
Our team of experts is committed to providing you with the best quality bearings that meet or exceed your expectations. We employ precision manufacturing techniques to ensure accurate dimensions and tolerances, guaranteeing a secure and reliable fit for your equipment.
In summary, if you are looking for high-quality, customized-size, oilless sleeve bearings made from tempered bronze, we are your reliable China supplier. Contact us today to discuss your requirements and let us provide you with the perfect solution for your sliding bearing needs.

Tempered Bronze Sliding Bearing For Highest Strain And Impact Load

Oilless Sleeve Flange Fixed Bronze Guide Bush with graphite

Our Machine the difficult spires and slots customized bushing sliding beairngs designed, and satisfactory machining results were achieved.Bronze bushing pivot bushes with helical grease grooves maximize the shaft bushing service life.The sliding bearing is provided with a spiral oil groove so as to realize the requirement of bearing sliding lubrication. Basically general-purpose products, suitable for various circumstances Including high or low load,high or low temperature, with oil or oiless lubrication, or even In the water. With it's matrix made of high strength brass, It's hardness doubles than normal bronze bushings and the wear performance improves in large degree, so it is applicable for continue pitching machine, converors of metallurgy industry. It could also be used in plastic injection machines, in the automatic switch of high-tension electricity, in the luffing and surporting parts of construction machines, hydraulic gate supporter, pulley, drive wheels of water control project, and also for drying tunnel of paper machines, auto die, sliding parts for ships unmooring etc.

Spiral Groove Bronze Bushing Feature

Some mechanical parts of the inner hole or outer ring, processing has different rotation, a certain depth of the spiral groove.Some of them are single spiral groove, some are double spiral groove, and the rotation direction and the opposite direction of the parts.The spiral groove on the parts has two main functions: one is to return oil, that is, to guide for self-lubricating & residue and leakage.

Cast Bronze Graphites Bearings Chamfering

Sliding Bearing chamfering in some parts, especially the outer circle and inner hole of circular parts are often processed into chamfering of 45° or 30°.
Bronze bushing pivot bushes with helical grease grooves maximize the shaft bushing service life
Naval Brass C48200 Plugged Graphite Bronze Bushings Medium Lead Long Life C48200 Plugged Graphite Naval Brass Bushings Selection

Continuous And Centrifugal & Cast Bronze Bar And Wear Plate

We specialize in the manufacture and distribution of a large range of copper alloys which incorporate continuous cast and machined parts, centrifugal castings, wrought copper alloys, bars, sheets ,bi-metal bushing strips,and plates, bronze wear plates and finished machined parts.Our graphite plug bearings typically have a Working temperature -40~+300°C, depending on a variety of factors affecting performance.

Naval brass Bushings & Sliding Bearings is the classic marine, high-strength and corrosion-resistant alloy containing 60 percent copper, .75 percent tin and 39.2 percent zinc. It is widely used in marine construction where strong, corrosive-resistant and hard material is required and is suitable for both salt and fresh water applications. Naval brass is used in propeller shafts, marine hardware, decorative fittings, shafting, propeller shafts and turn buckles. There are also many industrial applications, such as welding rods, condenser plates, structural uses, valve stems, balls, heat exchanger tubes, aircraft turnbuckle barrels, dies, and many more.
Naval Brass Bronze Bearings Selection
Material Naval Brass "Medium Lead"

Engineered Sliding Bearings Custom Machined Metal Sliding Bearings Products

VIIPLUS Bronze Bushings meet ASTM, SAE, QQC, ASME, AMS, and other standards.
Naval brass: C48200, C48500
Tin Bronzes - i.e., C90300, C90500, C90700
Leaded Tin Bronzes - i.e., C83600, C92200, C92900, C93200, C93700
Manganese Bronzes - i.e., C86200, C86300, C86500
Aluminum Bronzes - i.e., C95200, C95400, C95500 C95800We have strong ability of products design and manufacture, and specialize in large size copper alloy centrifugal casting, bronze bushings with graphite, wear plates and flanged bushings for industries such as Gears, Valve Stems,Power & Energy, Transmission Bearings, Power & Energy, General Engineering and Marine. And so on.

Beyond Grease: A Deep Dive into Oilless Bushings & Why Viiplus Leads the Way

Friction is the enemy of efficiency. In countless machines, from massive industrial equipment to intricate automotive components, the constant battle against wear and tear dictates performance, longevity, and maintenance costs. Traditionally, grease and oil have been the go-to solutions, but they come with their own set of challenges: frequent re-lubrication, potential contamination, environmental concerns, and limitations in extreme conditions.

Enter the world of oilless bushings, also known as self-lubricating bearings or sliding bearings. These innovative components offer a smarter way to manage friction, delivering reliable movement without the need for external lubrication.

At Viiplus (www.viiplus.com), we don't just supply these components; we engineer solutions. Leveraging deep expertise in metallurgy and tribology (the science of friction, wear, and lubrication), we've become a leading name in sliding bearing technology. But what exactly are oilless bushings, and why should they be on your radar? Let's dive deeper.

What Exactly Are Oilless Bushings? The Science of Self-Lubrication

Unlike traditional ball or roller bearings that rely on rolling elements and require constant lubrication films, oilless bushings operate on the principle of sliding motion. Their "magic" lies in their material composition and structure, designed to provide their own lubrication at the bearing surface. This can be achieved through several key technologies:

1. Solid Lubricants Embedded: Materials like graphite, MoS₂, or PTFE are embedded directly into the metallic matrix (often bronze) of the bushing. As the shaft rotates or slides, a minuscule amount of this solid lubricant is transferred to the mating surface, creating a low-friction film.

2. Porous Metal Structures: Sintered bronze or iron materials are created with microscopic pores. These pores are vacuum-impregnated with oil during manufacturing. In operation, slight heating causes the oil to expand and seep onto the bearing surface, providing lubrication. When it cools, the capillary action draws the oil back in, creating a closed-loop system.

3. Layered Composites: These often feature a strong backing (like steel), an intermediate sintered layer (like bronze), and a low-friction overlay (often PTFE-based). The PTFE layer provides the primary sliding surface, offering extremely low friction.

Contrasting Logic: Oilless vs. Traditionally Lubricated Bearings

The Tangible Benefits: Why Make the Switch?

Choosing oilless bushings isn't just about eliminating grease guns. It's about unlocking significant operational advantages:

• Drastically Reduced Maintenance: This is the most obvious benefit. No re-greasing means less labor, less scheduled downtime, and simplified maintenance protocols. Imagine the savings across a factory floor!

• Enhanced Reliability: Lubricant starvation is a major cause of bearing failure. Self-lubricating bearings ensure consistent lubrication, leading to predictable performance and longer service life, especially in hard-to-reach locations.

• Superior Performance in Harsh Conditions: Oilless bushings excel where traditional lubricants fail:

  • High Temperatures: Certain types can operate at temperatures far exceeding the limits of conventional greases.

  • Low Temperatures: No grease means no stiffening or freezing issues.

  • Contaminated Environments: The absence of sticky grease reduces the ingress of dirt, dust, and debris.

  • Vacuum or Underwater: Ideal for applications where liquid lubricants are impractical or impossible.

• Cost Savings (Total Cost of Ownership): While the initial purchase price might sometimes be higher, the TCO is often significantly lower due to savings on lubricants, labor, downtime, and potential component failure replacement.

• Environmental Friendliness: Eliminating oil and grease leakage prevents contamination of products, machinery, and the environment. Crucial for industries like food processing, pharmaceuticals, and textiles.

• Compact & Simplified Designs: Without the need for lubrication systems (nipples, lines, reservoirs), machine designs can be more compact and streamlined.

Exploring Viiplus's Portfolio: Finding Your Solution

Viiplus offers a comprehensive range of self-lubricating bearings designed to meet diverse application needs. Understanding the different series helps in selection:

• JDB Series (Graphite Plugged Bronze): Excellent for high-load, low-speed applications, intermittent motion, and high temperatures. The graphite plugs provide continuous solid lubrication. Ideal for heavy machinery, molds, and hydraulic components.

• SF Series (PTFE-Based Composite): Typically metal-backed (SF-1: steel, SF-2: steel/bronze) with a PTFE-based lining. Offers very low friction, good wear resistance, and suitability for dry running or marginal lubrication. Common in automotive, office equipment, and hydraulics.

• JF Series (Bimetal Bushings): Combines a steel backing with a sintered bronze or lead-bronze lining. Good load capacity and fatigue strength. Often used with grease or oil but can operate marginally lubricated. Found in engines, chassis parts, and agricultural machinery.

• FB Series (Wrapped Bronze): Often made from bronze strip, sometimes with lubrication pockets or through-holes. A cost-effective solution for medium loads and speeds, typically requiring initial greasing but offering extended re-lubrication intervals.

Quick Comparison Chart (General Guide):

(Note: This is a simplified guide. Always consult specific product data sheets or Viiplus experts for precise application requirements.)

Uncertain which material or type suits your project? Our Bushing Material Selection Guide is designed to help, or Contact Us for a Free Quote and Expert Advice.

Why Partner with Viiplus? Expertise Meets Quality

Choosing the right supplier is as critical as choosing the right bushing. Here’s why companies worldwide trust Viiplus:

• Deep Expertise: Our foundation in metallurgy and tribology, coupled with a talented R&D team, means we understand the science behind reliable movement. We don't just sell; we solve friction challenges.

• Uncompromising Quality: We employ advanced manufacturing techniques (including sand casting, centrifugal casting, metal casting, investment casting) and a rigorous quality management system, ensuring every bushing meets the highest standards.

• Comprehensive Range: From standard metric sizes in JDB, SF, JF, and FB series to custom solutions including cylindrical, flange, double flange bushings, wear plates, and guide rails – we have the portfolio to match your needs.

• Global Reach, Seamless Logistics: Based in China, we ship sliding bearings worldwide. Our professional team handles customs clearance efficiently, ensuring smooth, timely delivery with all necessary documentation.

• Customer-Centric Approach: We believe in ethical practices and building trust. We offer flexible production (single units to large series), competitive pricing, and online support.