C90800 Tin Bronze Graphite Plugged Bushings CuSn12 are specifically designed for use in injection mold machinery. They are made of CuSn12, a tin-bronze alloy that offers excellent wear resistance, good machinability, and high strength. The graphite plugging provides additional lubrication, further enhancing the bushings' durability and lifespan. These bushings are crucial components in injection molding machines, as they play a vital role in ensuring smooth and efficient operation of the machinery. The use of C90800 Tin Bronze Graphite Plugged Bushings CuSn12 can significantly improve the performance and reliability of injection mold machinery, reducing the need for frequent maintenance and repairs.

C90800 Graphite Inlaid CuSn12 Bronze Bushing & Bearings

Copper Bearing finished copper alloy bushings provide a simple, economical way to use bearings with high bearing, good corrosion resistance, dimensional processing any of the characteristics. Meanwhile VIIPLUS CHINA can provide different copper alloys according to different conditions, and in accordance with the requirements of processing different forms, it has a higher dimensional accuracy than class copper rolling bearings.

Bronze Plugged bronze bushing for High Temperature Applications. Reduced costs & downtime. Increased productivity. Highlights: Offering Custom Designed Products,Customized Drawings Available.Plug graphiting is accomplished by drilling a rowed, staggered hole configuration through the bearing wall and pressing graphite into these holes and hard baking.Standard size and custom size Choose from our selection of graphite bronze bearings wheel, including stock products in a wide range of styles and sizes.BEARING WHEEL C90800 Graphite Inlaid Oiles Tin Bronze Bearing Graphite

Application:

Heavy Industries• Steel Tube Plant Machinery • Tire & Paper Mills • Power Generating Stations • Injection Mold Machine

Our range of flanged bearings are available in metric and imperial sizes. Our in-house machining service is able to produce non-standard sizes to suit specific customer requirements.Plug graphiting is accomplished by drilling a rowed, staggered hole configuration through the bearing wall and pressing graphite into these holes and hard baking.

C90800 Bearing Bronze

VIIPLUS Offer the C90800 Bearing Bronze,cast bronze bushing & plate.

Viiplus graphite plugged tin bronze oiles bearing is based on tin bronze material. This type of self-lubricating bearing is also called #500 oilless bearing,brass bearing,cooper bushing,solid sliding bearing,guide bushing and graphite filled bearing.

The tin bronze graphite inlaid bearing is based on CuSn12 material. Compared with CuSn5Zn5Pb5, CuSn12 increases the tin content and reduces the friction coefficient, but the relative cost increases.The product is embedded with graphite oil as solid lubricant, which can achieve the effect of lubrication without oil.The product is mainly used in low load, relatively high temperature, medium speed occasions, such as construction machinery 'metallurgy machinery, paper machinery, transport machinery in the lubrication difficult parts.

Solid bronze bearing is a standard item of our company. This type self-lubricating bearing is also called solid metal bearing,graphite plugged bearing,solid lubricating bearing,guide bushes,cast bronze bushing, #500 oilless bearing,oiles flange bearing and solid sliding bearing.

Advantages

In places where oil film formation is difficult, such as reciprocating movement, swing movement, frequent starting and stopping, excellent wear resistance can be exerted:
The arrangement principle of the lubricants of the solid lubrication bearing is to ensure that there are lubricants on all parts of the grinding parts in the running process. Therefore, the arrangement position of the lubricants must be determined according to the movement direction of the grinding parts.

C90800 Bearing Bronze Bushing

Clearance
Greater than normal clearance must be allowed: (1) if exceptionally high speed is involved, (2) if higher than normal loading is encountered.

Material Structure
Standard material: CuSn12 + Graphite.

Characteristics

● Have Incomparable performance under a high load, low speed operation. Also perform well without lubrication;

● Excellent wear resistance in such places where an oil film is difficult to be formed due to reciprocating, oscillating motions and frequently intermittent operations;

● Remarkable resistance to corrosion and resistance to chemical attack;

● Maintenance free and save operating cost.

Availability

● Cylindrical oiles bushing, flanged oilless bush, thrust washer and slide plate are standard fabrication.

● Special designed solid metal bearing and material can be made according to your design.

● Other material can be made based on your requirement.
Graphite Inlaid Oiles Tin Bronze Bearing CuSn12 Material

CuSn12 EN Casting Copper Alloy Tin Bronze Bushings

Graphite plugged tin bronze oiles bearing is widely used in successive casting machine, mineral mountain machinery, shipping, steam turbine etc.

Technical Parameters

TIN BRONZE BUSHINGS CUSTOMER SIZE

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.

•