Oil-free plugged graphite slide bearing plates are a unique type of bearing material designed for applications where the use of lubricants is undesirable or impractical. These bearing plates are constructed from high-quality graphite, a naturally occurring mineral that possesses exceptional lubricity and wear resistance.

The key feature of oil-free plugged graphite slide bearing plates is the incorporation of plugs or inserts that serve to retain the graphite material and provide structural integrity. These plugs are typically made from a compatible material, such as stainless steel or other corrosion-resistant alloys, and are precisely positioned to optimize the bearing's performance.

The absence of oil or other lubricants means that these bearing plates rely solely on the inherent lubricity of the graphite material to facilitate smooth sliding motion. Graphite's low coefficient of friction and excellent wear resistance make it an ideal choice for this purpose, even under high loads and temperatures.

Oil-free plugged graphite slide bearing plates are commonly used in a variety of applications, including industrial machinery, transportation systems, and other equipment where the use of lubricants is not feasible or desired. Their durability, reliability, and maintenance-free operation make them a cost-effective solution for many demanding applications.

Oil-Free Slide Plates, Plugged Graphite Plate, Cost-effective graphite parts, contact me to give you a satisfactory price.

Check the oil-free sliding plates for the latest prices and delivery times to order from China with holes of different thicknesses.

Oil-free slide plates are produced by incorporating a special solid lubricant in the appropriate places.Sintered alloy is a special alloy with an even distribution of solid lubricants and lubricating grease filled with pores.The metal base material supports the load while the built-in solid lubricant provides lubrication, resulting in superior oil-free durability, even under harsh conditions.

Oil-free slide plates Feature

• Oil-free slide plates are most effective in places where a constant supply of lubricant is required, frequent or frequent start and stop movements are required and the oil film is difficult to form.
• Since oil-free slide plates are used in oil-free conditions, lubrication equipment is not required. This reduces assembly time and results in a cleaner environment by preventing pollution from hydrocarbons and other problems.
• Oil-free slide plates have excellent seizure resistance.

Oil-free Slide Plates Size Model

Material: C86300 bronze Oil-Free Slide Plates (previously used copper alloy JIS, HBSC4). Special solid lubricant. Initial lubrication is recommended for more efficient use. Oil-free sliding plates made of copper alloy

Oil-free slide plates chemical composition

Oil-free slide plates mechanical properties

Oil-Free Slide Plates Material Properties

• Enables maintenance-free and long life;
• Suitable for high static and dynamic loads;
• With low and smooth friction coefficient and no stick-slip effect;
• Suitable for dirt, corrosion, impact load, and edge loading;
• The base material provided good shock absorption;
• Can be used in a wide temperature range;
• Suitable for reciprocating, rotational and oscillating movement with initial frequency and difficulty in creating an oil film;

Oil-Free Slide Plates are special elements that are intended to significantly reduce the coefficient of friction in pipe supports. As a result, they lower the load values ​​caused by the horizontal displacement of pipes or devices, reduce the load, and improve the functionality of the associated rest supports.

They are usually installed between the pipe or equipment and the structure or floor. The main sliding plate is based on the use of for temperatures below 150ºC or brown graphite for temperatures in this range or when loads or environmental conditions are harsher, or because of their longer service life.

The or bronze-graphite component is permanently attached to a carbon steel base designed to be welded to the support structure or the recessed plate.

Oil-Free Slide Plates Types & Dimensions

Inlaid plates, suppliers, and manufacturers of inlaid plates.

This type of Oil-Free Slide Plates can be applied in dry, high temperature, high pressure, corrosive, water, or other chemical environments when it is not possible to introduce oil. It is widely used in the automotive product line, water engineering, dam gate, plastics industries, subsequent casting machines, steel rollers in the metallurgical industry, mineral machines, ships, turbogenerators, hydraulic turbines, and injection molding machines.

Oil-Free Slide Plates

STRUCTURE

VSB-50P Sliding Block 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 at low speed. This material provides a maintenance-free bearing solution, particularly for high load, intermittent of oscillating motion.

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.

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• 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.