The die guide bushing, in its universal straight type configuration, is a crucial component in various machinery and tooling applications. This type of bushing is designed to provide precision guidance and stability, enabling accurate alignment and smooth operation.

The bushing itself, without a bolt hole, offers flexibility in installation and can be used in a wide range of applications. The washer, which accompanies the bushing, also plays a vital role in ensuring the stability and smooth functioning of the system.

Both the bushing and washer are precision-manufactured from high-quality materials that are chosen for their durability, strength, and corrosion resistance. This ensures that the components can withstand the rigorous demands of heavy-duty industrial applications.

The universal straight design of the bushing allows for easy installation and adjustment, making it a versatile choice for various machine tool setups. The washer, without a bolt hole, provides additional support and stability, ensuring that the bushing remains securely in place during operation.

Overall, the die guide bushing, in its universal straight type configuration, along with the accompanying washer without a bolt hole, offers a reliable and dependable solution for precision guidance and stability in various industrial applications.

Graphite Plugged Bushings

What is mold guide sleeve

Die guide sleeve is also known as a high-strength copper substrate (die guide sleeve, high-strength brass bearing). Graphite or high performance solid lubricated molybdenum disulfide solid lubricant products. It breaks through the limitations of general bearing film lubrication. During use, heat of friction causes solid lubrication and shaft friction, forming excellent conditions for powder and oil lubrication, protective shaft wear, and eternal solid lubrication characteristics. It is twice as high as the usual copper sleeve and twice as resistant to wear.

Washer, self-lubricating, "SOBW" Series Washer, self-lubricating,

Price and delivery time on request.

"SOBW" Brass Washer, self-lubricating bearing parts

Maintenance-free bearing and guide bushes, bronze with solid lubricant

Custom-made washer products

Find bronze brass parts washer products faster and inquire online!

Properties: "SOBW" bronze brass washer

Bronze Thrust Washers

Our Bronze Thrust Washers are available in (3) types: Plain Thrust Washer, Graphite Plugged Thrust Washer and Oil / Grease Grooved Thrust Washer.

Thrust washers can be found in almost every appliance, machine, transportation conveyance, power tool, and recreational device that has moving parts, axles, bolts, pins, bearings, and rotating components. In their simplest form, thrust washers are long-wearing flat bearings in the shape of a washer that transmit and resolve axial forces in rotating mechanisms to keep components aligned along a shaft. Thrust washers are an economical alternative to rolling thrust bearings whenever forces velocities are moderate.

They are manufactured from a variety of Bronze Alloys, including: C95400 Aluminum Bronze, C93200 Bearing Bronze and C86300 Manganese Bronze. We provide your desired Thrust Washers according to the specifications you require.

Die Guide Bushing Universal Straight Type Components Guide Bushing. Material: Bronze with Graphite, machining tolerance H7
recommended hole f7: High precision e7 general use light load d8 high load mating post tolerance, bronze washer type without bolt holes.
Guide Bushing Flange Type
The bronze graphite sleeve bushing & bearings are used for labor-saving in various production lines. Products of VIIPLUS Oilless Industry are developing the world standard. In addition to standard product series, tailor-made products to customers' requirements are available.
Standard Components for Press Die
Standard Components for Plastic Moulds
Standard Components for Sliding Material

Oilless self-lubricating solid graphite inserted bronze thrust washer

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.

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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.

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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.

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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.

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