In the realm of precision machinery and heavy-duty applications, having the right bearing solution is crucial for ensuring smooth, reliable, and efficient operation. Custom machined self-lubricating plain bearings, specifically cast bronze bushings, offer an optimal solution for a wide range of industrial and automotive applications.

Cast bronze bushings are renowned for their high strength, durability, and wear resistance. The casting process allows for the creation of complex shapes and geometries, ensuring that the bushings precisely fit the application's requirements. This precise fit minimizes vibration and movement, extending the life of the bearing and reducing the need for maintenance.

The self-lubricating property of these bushings is particularly beneficial. They are often impregnated with a lubricant, such as oil or grease, during the manufacturing process. This lubricant provides a continuous source of lubrication to the bearing surface, reducing friction and wear, even in high-speed or high-load applications. This eliminates the need for external lubrication, simplifying maintenance and reducing downtime.

Custom machining further enhances the performance of these bushings. By precisely shaping and finishing the bearing surface, custom machining ensures that the bushings fit perfectly within the application's operating envelope. This precision allows for tighter tolerances and reduced clearance, further minimizing vibration and wear.

In summary, custom machined self-lubricating plain bearings, specifically cast bronze bushings, offer a robust and reliable bearing solution for a wide range of industrial and automotive applications. Their high strength, durability, wear resistance, and self-lubricating properties ensure smooth and efficient operation, even in the most demanding environments.

Maintenance Free Cast Bronze Bearings & Bronze Bushing | Brass Oilless Bushes

Cast bronze bearings & bronze bushings are ideal for maintenance-free & heavy duty applications.

We manufacture custom and standard machined brass and bronze bushings and bearings to serve in a variety of industrial applications.

How VIIPLUS Help Your Shipping the self lubricating bronze bushing from China

If you’re not familiar with importing bushing bearings from China, shipping from China can be a problem for you. VIIPLUS is a professional self-lubricating bearing bushings supplier in China, we provide very competitive bushing bearings prices for shipping by sea, shipping by air.

ASK Your Best Quote For Your Self-lubricating bearings parts

Gleitlagerbuchsen,Custom Machined Commercial Excavator Screener Loader Truck Self Lubricating Plain Bearing / Cast Bronze Bushings

Cast Bronze Bushings China CuZn25Al5 material Graphite Lubricating Bronze Bushing

Commercial Truck Plain Sleeve Bushings for Screening equipment bucket Scrap Metal dirt fertilizer urea dap sorting system excavator screener loader telehandler skid steer self-lubricating bearings made to order from china.
We Stock and Manufacture Solutions for the Commercial Truck Industry BushingsSleeve Bushings,Slide Bearings,Thrust Bearings,Injection Block Bearings & Thrust Washers.

Availability

Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
We are a major supplier of precision components to a range of commercial industries, providing turnkey solutions to customers at competitive rates. Leveraging our state of the art machining capabilities and on-site materials warehouse, we are able to create parts for critical applications from any combination of materials. Our experience encompasses production for a range of businesses including transportation and commercial trucking.

Construction Machinery​

Excavators Bushings & Bearings,Self-lubricating Guide Bushing, Self-lubricating Guide Bearings
VIIPLUS SLiding Bearings are used in the engines and hydraulic systems of excavators and other construction machinery.The self-lubricating graphite plugged bronze sleeve bushings are machined from continuous cast bronze bar stock. They are then milled and plugged with solid lubricant graphite based plugs. The plugged graphite bushings are great for applications where maintenance is difficult and where normal grease.VIIPLUS cast bronze bushing is based on high strength brass or other material based on your choice, lubricating by oil added in the oil grooves. This type cast bronze sleeve bushing has the same performance with other oiles bearing.but with much higher hardness, twice life time for low speed application compared with tin bronze bushing.

Datong Dme Bujes Bronze Bushing Motor Gearbox Sleeve Dual Mass Flywheel Repairing Self-Lubricating Bearing Peek Bushing Sliding Bearing MPTZ20 28 25 33 30 38
Solid Bronze Metallic Self-lubricating Bearings

Cast Bronze Bearing with Graphite Plugs

Structure Characteristics and Applications

Small and Middle Size Engineering Machines: Bulldozer, Excavator, Loader Cast Bronze Bearings
Material:CuZn25AI5Mn4Fe3

Solid Lubricating Bearing is produced by strengthening brass that has good physical performance and good capability for casting. What's more, the brass material has pretty good anti-erosion abitity in air, fresh water and sea water. The surface is regularly and finely machined with sockets in which particular solid lubricant is filled. The product is widely used on consecutive casting and rolling machines, mine-exploiting equipments, ships, steam engine, etc.

Solid Lubricant Casting Aluminum Bronze Bearings Bronze Bushings

with Solid Graphite Lubrication. Various material specifications, standard and special shapes are also available.

Solid lubricating bearings
1. May work without any ol for long period
2. Extremely high load capacity, good anti-wear and lower friction
3. Particularly appropriate for low speed and high load
4. Suitable for reciprocating, oscillation or intermittent motion where oil film is hard to be formed
5. Good chemical resistant and anti-corrosion characteristics
6. Can b€ used in wide range of temperature from -40℃-+300℃

Solid Lubricant Sliding Bearings material is made of strong cast bronze based metal with special solid lubricants embedded. The base metal withstands high load and the solid lubricants provide self-lubrication. The bearing shows excellent performance without pre-lubrication under conditions of extreme high/low temperature with low speed. This material provides a maintenance-free bearing solution, particularly for high load, intermittent of oscillating motion.

Chemical Compositions

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.

4.  

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.

•