The Double Loop Oil Grooved Cast Bronze Bushings, featuring self-lubricating and corrosion resistance properties, are designed for applications that require high performance and durability. These bushings are made from cast bronze, a material known for its excellent wear resistance and load-bearing capacity.

The key feature of these bushings is the double loop oil grooving design. This design allows for even distribution of lubricating oil within the bushing, ensuring constant lubrication and reducing the chances of friction and wear. The self-lubricating nature of the bushings further enhances their durability and performance, reducing the need for regular maintenance and replacement.

In addition to their self-lubricating properties, these bushings also exhibit excellent corrosion resistance. This is due to the bronze material, which is resistant to many chemicals and environments that can cause corrosion. This corrosion resistance makes the bushings suitable for use in a wide range of applications, including those with harsh or corrosive environments.

Overall, the Double Loop Oil Grooved Cast Bronze Bushings with self-lubricating and corrosion resistance properties are an excellent choice for applications that require high performance, durability, and reliability. Their unique design and material composition ensure consistent and efficient operation, reducing downtime and maintenance costs.

Oil Groove Bushings Type of groove Oil Grooves: wide x deep.Oil Holes

Any of our standard stock sizes for bronze sleeve bearings are adaptable to graphite. There are several styles of graphite available, however, we specialize in custom cutting! Graphite is mechanically forced into the groove under extreme pressure. A film of lubricant is transferred to the shaft when it starts to turn.

We are specialists in cutting lubrication grooves bronze bushings or with oil holes .Examples include Double Loop Groove and Single Loop Groove. In addition to our standard groove options we also offer grooves filled with graphite.Other common groove patterns available are Circular, straight Figure 8,double Figure 8.Any of these grooves can be contained within the length of the part or breaking out the ends. Call us for assistance in determining which pattern is most appropriate for your application. There are industry standard groove patterns that are available for different applications.

Standard size graphite plugged sleeve bushings are available for purchase online at www.bronzegleitlager.com.

Hundreds of industry standard size sleeve bushings are listed in both inch and metric standard sizes. These products are inventoried for quick shipment.

Grooved Cast Bronze BushingsThese plain bearings are most suitable for applications involving a high loading and requiring maintenance-free operation.The oil groove should not break out the end of the bushing.

Oil Groove styles available--Oil Holes And Double Oval

Common applications are:

• Flood/lock gates

• Offshore

• Iron and steel industry

• Furnace construction

• Mold construction

Groove copper sleeve is a kind of high - force brass bearing lubricated with groove barrel oil.This product has the traditional tin bronze bearing function, because USES the high profit brass, its hardness has raised one time, therefore USES this product in the low speed occasion, may lengthen the general bronze sleeve life one time, moreover its load bearing pressure is big, can adapt the heavy load occasion use.At present, the product is mainly used for excavator stress joint parts and large gearbox.

Copper alloy graphite groove solid lubricated bearing is a kind of high wear resistant solid lubricated bearing, which is based on aluminum brass and is processed into ring groove with the same spacing on the inner diameter of the bearing.In the process of use, due to the role of friction heat, the solid lubrication material in the aluminum brass groove on the inner diameter surface will produce micro expansion, so as to generate friction with the shaft first and form a transfer film on the shaft, so as to reduce the friction coefficient, reduce the wear of the shaft and shaft sleeve, extend the service life and other effects.The product is especially suitable for precision mold guide sleeve, precision guide rail and other reciprocating linear motion conditions.

We are specialists in cutting lubrication grooves in virtually any pattern. Groove. Other common groove patterns available are figure eight, double figure eight, loop, double loop, circular, wick or straight. Any of these grooves can be contained within the length of the part or breaking out the ends. Call us for assistance in determining which pattern is most appropriate for your application. There are industry standard groove patterns that are available for different applications.

Grooved Bronze Bushing Type:

• Circular Straight Grooved bushings

• Single Loop Grooved bushings

• Double Loop Grooved bushings

• Straight & Circular Grooved bushings

• Figure 8 Grooved bushings

• Double Figure 8 Grooved bushings

Material Structure

Aluminum bronze + solid lurbicants

Characteristics

Cost effective and higher crash strength comparing with tin-bronze type.

Its ends can even be welded with machine part and assemble tog.

Availability

C95400 Bronze Bushings​ Technical Data

Description

VSB-50 FlangeSolid Bronze Metallic Self-lubricating Bearings

Copper Cast Bronze Bearings / Flanged Bronze Bearings

Cast Bronze Bearing with Graphite Plugs

VSB-50 Flange

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℃

VSB-50 Flange 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

Bearing forms available in standard dimensions

· Cylindrical bushes

· Flanged bushes

· Sliding plates

Bearing forms made to order: standard forms in special dimensions, thrust washers, flanged thrust washers, half-bearings, special shapes obtained by stamping or deep drawing, customized bearing designs

This kind of bearing can be applied under dry, high temperature, high pressure, corrosive, water or other chemical environments when no oil can be introduced. It is widely used in automotive products line, water engineering, dam gate, plastic industries, successive casting machines, steel rollers in metallurgy industry, mineral machines, ships, turbo generators, hydraulic turbines and injection molding machines...

Customer Size

START YOUR
PROJECTWITH AN APPLICATION ENGINEER

Sliding Bearing, Bimetal Bush, Wrapped Bronze Bushing, Oiles Bush, Oiles Bearing, Manufacturer China

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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