Friction Bearings made of Bronze Bushing are a reliable and robust choice for high-load applications, offering superior performance and durability. Bronze, known for its excellent wear resistance and corrosion resistance, is an ideal material for bearings that need to withstand heavy loads and frequent operation.

For those seeking a high-load alternative, CuSn6P is a highly suitable option. This alloy combines the strength and ductility of copper with the wear-resistant properties of tin and phosphorus. CuSn6P bearings exhibit excellent friction characteristics, making them ideal for demanding applications where smooth and efficient operation is crucial.

Bronze bushings, along with CuSn6P bearings, provide a reliable and long-lasting solution for friction bearing needs. They are easy to install and maintain, ensuring minimal downtime and maximum productivity.

Wh you're replacing worn-out bearings or upgrading your existing system, Bronze Bushing Friction Bearings and CuSn6P bearings are excellent choices for high-load applications. Their durability and performance make them a cost-effective long-term solution for your industrial needs.

Cojinetes De FriccióN Bronze Bushing & Bearing Types

A plain bearing, or more commonly sliding contact bearing and slide bearing, is the simplest type of bearing, comprising just a bearing surface and no rolling elements. Therefore, the journal slides over the bearing surface. The simplest example of a plain bearing is a shaft rotating in a hole.

COJINETE FRICTION Bushing Flange Bearing Plain Bushes Flange Bushes Metric Standard Flange Bushing(DIN1494), fabrica cojinetes de fricción en diversos diseños y de distintos ... Cada una de las combinaciones de material y diseño del cojinete de fricción tiene ... Series, BRM80, Bronze Bearing With Flange & Holes Through, The bearing is intended for oil or grease lubrication. Available with or without flange. The cusn8 bronze sliding surface has rhomboid lubrication pockets. The bronze bushing sliding surface has holes going right through.

Bronze Bearing
Bronze sliding bearings in accordance with DIN17662 CuSn8.
The bearing is intended for oil or grease lubrication.
Available with or without flange.

The bronze sliding surface has rhomboid lubrication pockets.
The bronze sliding surface has holes going right through.

Properties
High load ability level
Compact dimensions
High chemical resistance in aggressive environments
High thermal conductivity
Wide working temperature range
Easy to fit and maintain
Technical instructions:
Maximum permissible surface pressure 150 N/mm2 (static)
Maximum permissible surface pressure 60 N/mm2 (dynamic)

Minimum working temperature -40°C
Maximum working temperature +150°C

Maximum sliding speed 2.5 m/s (grease-lubricated)

More technical specifications

We’re experts in bronze


The bronze bushes have through-holes on bushes, which have a greater capacity to collect the lubricant compared with the indentations. These indents serve as lubricant reservoirs to rapidly build up a lubrication film in the start movement and therewith reduce the start friction.


slide bronze plain bearings with or without flange are intended for radial and axial movements. The bearings are wrapped of a cold formable homogenous.

Bronze Bearing With Flange & Holes Through Plain Bushings WB802 Lubricating Holes Bronze Bushes After assembly, it is injected with lubricating oil and used with end face sealing. The bearing has the advantages of large oil storage, convenient installation, small design volume, and can replace the use of the copper sleeve, can greatly reduce the cost, the product has been applied to conveyor, elevator, hoist, leveling machine and another medium load, low-speed occasions.

WB802WF Series FB092 bronze bearing is thin wall bearing, which is made of bronze material and processed evenly and orderly oil filling holes. After assembly, lubricating oil is injected and end face seal is configured for use. The bearing has the advantages of large oil storage, convenient installation, small design volume, and can replace the use of copper bushing, can greatly reduce the cost.
Widely used in lifting machinery, construction machinery, car tractor chassis, machine tool industry, mining machinery, car drive shaft, car change gear box, generator, crane, metallurgical machinery and conveyor, lift, rolling field machine, leveling machine and other medium load, low speed occasions.

Material

• Support material CuSn8P (DIN 17662)
• alternative CuSn6P available

Plain Bearing Bushes

Flange Bearing Plain Bushes

FB090 bronze bearing is made of high density copper alloy strip with special formula. The surface can be rolled diamond or hemispherical oil holes and grooves as required by users. It has the advantages of high density, large bearing capacity, good wear resistance, long service life, etc., to replace the traditional casting copper sleeve, can reduce the mechanical volume, reduce the cost. Widely used in lifting machinery, construction machinery, car tractor chassis, machine tool industry, mining machinery, car drive shaft, car change gear box, generator, crane, metallurgical machinery and conveyor, lift, rolling field machine, leveling machine and other medium load, low speed occasions.

Technical Parameters

Tolerance Details

• Housing ØH7
• Bushing inner-Ø after mountingH9
• Shaft tolerancef7 to h8

Properties

• Economic solution for bronze bearing application due to a thin wall thickness. High load capability and good stability with low abrasion. Suitable for rough working conditions, good corrosion resistance. Lubrication holes for maximum grease storage and the lowest maintenance intervals.

The bearing is intended for oil or grease lubrication. Available with or without flange.

The BRM10’s sliding surface has rhomboid lubrication pockets. The BRM80’s sliding surface has holes going right through.

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.