Solid Special Bronze Bushing

High-Performance, Maintenance-Free Solution for Extreme Working Conditions

Solid Special Bronze Bushing

Solid special bronze bushings are engineered for heavy-duty applications where traditional lubricated bushings may fail. These bushings are made from high-strength bronze alloys, embedded with solid lubricants, such as graphite, to provide exceptional self-lubricating performance even under extreme conditions. Designed to operate without additional lubrication, they are ideal for use in environments where maintenance is difficult or where conventional lubrication is impractical.

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Material

Shape/Size

Characteristic

Application

Custom

FAQ

Bushing Material

Solid special bronze bushings are designed with a robust structure, combining the strength of bronze alloys and the self-lubricating properties of embedded solid lubricants.

Material Structure & Technical Details

1. High-Strength Bronze Alloy — Durability and Load-Bearing Capacity

The base material of the bushing is a high-strength bronze alloy that provides exceptional durability and resistance to wear, even under high loads. This material is chosen for its superior mechanical properties, ensuring long-lasting performance in tough industrial environments.

Excellent Strength: The bronze alloy ensures the bushing can handle high static and dynamic loads without risk of failure or deformation.

Corrosion Resistance: The bronze alloy is naturally resistant to corrosion, making these bushings ideal for use in environments exposed to water, chemicals, or other corrosive substances.

2. Solid Lubricant Inserts (Graphite or MoS₂) — Self-Lubricating for Maintenance-Free Operation

Embedded in the bronze base are solid lubricant plugs, such as graphite or molybdenum disulfide (MoS₂), which provide continuous lubrication as the bushing operates. These solid lubricants are distributed evenly across the surface of the bushing and are designed to release microscopic amounts of lubrication as the components move, reducing friction and wear.

Continuous Lubrication: Solid lubricant plugs ensure a steady release of lubrication, keeping the bushing running smoothly without the need for additional grease or oil.

Low Friction: The self-lubricating properties of the solid inserts result in a low coefficient of friction, even under heavy loads and high-speed conditions.

Extended Service Life: By minimizing friction and wear, solid lubricants help extend the operational life of both the bushing and the equipment it supports.

Material Combination

Material	Mechanical Performance	Wear Resistance	Corrosion Resistance	Operating Temperature Range	Friction Coefficient	Machinability	Cost	Environmental Compliance
Tin Bronze (Cu-Sn)	High strength, good impact resistance	Excellent, durable under high load and fatigue	Good, especially resistant to seawater and acid	-100°C to +250°C	0.08-0.15 (with lubrication)	Good, easy to cast, weld, and machine	Moderate to High	Complies with RoHS/REACH, lead-free
Aluminum Bronze (Cu-Al)	Very high strength and hardness, excellent impact resistance	Excellent, ideal for heavy loads	Very good, excellent against seawater and chemicals	-150°C to +300°C	0.10-0.18 (with lubrication)	Moderate, difficult to machine, requires specialized equipment	High	Complies with RoHS/REACH, lead-free
Lead Bronze (Cu-Pb)	Moderate strength, great lubricity, high fatigue resistance	Good, excellent lubrication, resistant to wear	Moderate, suitable for medium corrosive environments	-100°C to +200°C	0.06-0.12 (with lubrication)	Very good, easy to machine, ideal for complex shapes	Moderate to Low	Limited, contains lead, non-compliant with RoHS/REACH in some regions
Phosphor Bronze (Cu-Sn-P)	High strength, high elasticity, good fatigue resistance	Excellent, durable in high-vibration applications	Good, good corrosion resistance	-150°C to +250°C	0.08-0.15 (with lubrication)	Good, suitable for precision machining	Moderate to High	Complies with RoHS/REACH, lead-free
Manganese Bronze (Cu-Mn)	Very high strength and hardness, excellent impact resistance	Good, suited for high-load, high-impact environments	Good, suitable for damp and corrosive environments	-100°C to +250°C	0.08-0.16 (with lubrication)	Moderate, hard to machine, requires specialized equipment	High	Complies with RoHS/REACH, lead-free
Beryllium Bronze (Cu-Be)	Extremely high strength, excellent conductivity and fatigue resistance	Excellent, good wear resistance in high-precision applications	Excellent, resistant to chemicals and seawater	-200°C to +300°C	0.08-0.14 (with lubrication)	Difficult, requires special handling due to toxicity (beryllium)	Very High	Complies with RoHS/REACH, lead-free
Bronze with Solid Lubricant Inserts	High strength, excellent self-lubricating properties	Very good, performs well under dry or high-load conditions	Good, suitable for marine and chemical environments	-100°C to +300°C	0.03-0.10 (self-lubricating)	Good, but requires specific processes for lubricant inserts	High	Complies with RoHS/REACH, lead-free

Bushing Size

6 × 12 × 10 mm	30 × 40 × 40 mm	60 × 80 × 100 mm	120 × 150 × 220 mm
8 × 16 × 12 mm	35 × 50 × 50 mm	70 × 90 × 120 mm	150 × 180 × 250 mm
10 × 18 × 15 mm	40 × 55 × 60 mm	80 × 100 × 150 mm	180 × 220 × 300 mm
12 × 22 × 18 mm	45 × 60 × 70 mm	90 × 120 × 180 mm	200 × 250 × 350 mm
14 × 24 × 20 mm	50 × 70 × 80 mm	100 × 130 × 200 mm	250 × 300 × 400 mm
16 × 26 × 22 mm	30 × 45 × 40 mm	70 × 90 × 100 mm	140 × 170 × 220 mm
18 × 28 × 25 mm	32 × 48 × 45 mm	75 × 100 × 110 mm	150 × 180 × 240 mm
20 × 32 × 30 mm	35 × 50 × 50 mm	80 × 105 × 120 mm	160 × 190 × 260 mm
22 × 36 × 35 mm	38 × 52 × 55 mm	85 × 110 × 125 mm	170 × 200 × 280 mm
25 × 40 × 40 mm	40 × 60 × 60 mm	90 × 115 × 130 mm	180 × 210 × 300 mm
10 × 20 × 15 mm	45 × 65 × 70 mm	95 × 120 × 140 mm	190 × 230 × 320 mm
12 × 24 × 20 mm	50 × 70 × 75 mm	100 × 130 × 150 mm	200 × 250 × 340 mm
15 × 25 × 20 mm	55 × 75 × 80 mm	110 × 140 × 160 mm	220 × 270 × 360 mm
20 × 30 × 25 mm	60 × 80 × 85 mm	120 × 150 × 180 mm	240 × 290 × 380 mm
25 × 35 × 30 mm	65 × 85 × 90 mm	130 × 160 × 200 mm	250 × 300 × 400 mm

Bushing Shape

The different bushing shapes allow bushings to be widely used in various mechanical structure parts, such as the moving parts inside cars or the connecting parts on industrial machinery or other situations where there’s friction and wear that needs to be beaten down.

Cylindrical

Flanged

Thrust Washers

Wear Plates

Special Shape

Bearing Bush

Why Choose Solid Special Bronze Bushings?

Key Benefits:

Self-Lubricating: Embedded solid lubricants (such as graphite) allow the bushing to provide continuous lubrication, eliminating the need for additional grease or oil, even in the most demanding environments.
High Load Capacity: The bronze alloy provides excellent strength and durability, allowing the bushing to withstand heavy loads without deformation or failure.
Exceptional Wear Resistance: The combination of bronze and solid lubricants ensures low friction and high wear resistance, extending the service life of your machinery.
Corrosion and Chemical Resistance: Bronze is highly resistant to corrosion, making these bushings suitable for use in harsh environments, including marine and chemical applications.
Maintenance-Free: With solid lubricants embedded in the material, these bushings do not require external lubrication, reducing downtime and maintenance costs.
High-Temperature Performance: Solid special bronze bushings can withstand high operating temperatures, ensuring consistent performance in extreme thermal conditions.

Technical Specifications

Solid special bronze bushings are engineered to meet the demands of a wide range of industrial applications. Below are the technical specifications to help ensure that the product meets your specific requirements:

Material Composition: High-strength bronze alloy with embedded solid lubricants (graphite or MoS₂)
Max Static Load: 200N/mm²
Max Dynamic Load: 100N/mm²
Coefficient of Friction: 0.03-0.16 (depending on operating conditions)
Operating Temperature Range: -40°C to +300°C
Max Sliding Speed: 0.4-1.5 m/s (depending on lubrication)
Corrosion Resistance: Excellent resistance to seawater, chemicals, and oxidation
Tolerances: Manufactured to meet international standards (ISO/ANSI) for precision and performance in critical applications

Bushing Applications

Solid special bronze bushings are ideal for applications where traditional lubrication is impractical or where the equipment operates in harsh environments. Here are some of the primary industries and uses:

1. Construction and Mining Machinery

These bushings are used in heavy-duty construction and mining equipment such as excavators, bulldozers, and dump trucks. Their high load-bearing capacity and self-lubricating properties make them ideal for pivot points, bearings, and joints in these machines, where lubrication is difficult to maintain.

2. Marine Applications

In maritime environments, where saltwater exposure and harsh conditions are common, solid special bronze bushings provide excellent corrosion resistance and reliability. They are used in ship components, offshore platforms, and underwater equipment.

3. Steel Mills and High-Temperature Environments

Solid special bronze bushings are ideal for steel mill machinery and other high-temperature industrial processes. Their ability to operate at high temperatures without losing performance ensures that machinery continues to function optimally in extreme conditions.

4. Hydropower and Water Treatment

In hydropower plants and water treatment facilities, solid special bronze bushings are used in turbines, pumps, and other equipment that operates in wet and corrosive conditions. Their maintenance-free operation and corrosion resistance ensure reliable, long-term performance.

Combine Harvester

Crane

Bulldozer

Loader

Graders

Automobile

Truck

Tractor

Dump Truck

Excavator

Custom Services and Solutions

We offer flexible customization options to meet the specific needs of your application:

Custom Sizes: Available in a wide range of diameters, lengths, and thicknesses to suit your requirements.

Material Adjustments: Choose from different bronze alloys and solid lubricants (graphite, MoS₂, or PTFE) to match the operating environment.

Surface Finish: Various surface finishes are available to improve performance in specific conditions or applications.

Free consultation

Communicate with us to clarify the requirements

Free design

Customize your product according to your needs

Sample making

Confirm the drawings and arrange for sampling

Sample confirmation

Customer confirms sample and arranges production

Finished inspection

Inspect the finished product and arrange for shipment

FaQ

Are you a factory？

Of course, we are a manufacturer that can complete the entire production line from raw materials to finished bushing products.

What bushings do you production?

We mainly produce various self-lubricating bushings. Please refer to our product solutions or contact us for details

What is a bushing?

A bushing is a mechanical component typically used to reduce friction between two parts. It serves as a type of bearing that provides a smooth surface for parts to move against each other, often found in rotating or sliding applications.

What is the general process for manufacturing bushings?

Bushing manufacturing involves several key steps:

Material Selection: Choosing the appropriate material such as bronze, rubber, or plastic, depending on the application.
Forming: Techniques like casting, pressing, or extrusion are used to shape the raw material into a bushing.
Heat Treatment: For metal bushings, heat treatment is applied to increase strength and wear resistance.
Finishing: This step involves precision machining to achieve the required dimensional tolerances and surface finish.
Surface Treatment: A coating may be applied for corrosion resistance or lubrication purposes, such as zinc plating or Teflon coating.

What materials are commonly used in bushing production?

Common materials used in bushings include:

Bronze: Known for its durability and low friction, often used in heavy-duty applications.
Rubber: Used for vibration dampening in automotive and machinery applications.
Nylon/Polymer (like PTFE): Provides self-lubrication and is ideal for low-load, low-friction environments.
Steel: Used for high-load applications, often combined with a softer material like bronze or plastic as the lining.

How are bushing dimensions and tolerances maintained during production?

Precision is key in bushing production. CNC machines are frequently used to ensure that inner and outer diameters, as well as wall thickness, meet strict tolerance levels. Throughout production, measurements are taken using tools like micrometers and calipers, and automated systems can control accuracy to prevent deviations.

What surface treatments are used for bushings?

Bushings often undergo surface treatments to enhance their properties:

Zinc or nickel plating: Protects the metal surface from corrosion.
Teflon (PTFE) coatings: Provide low friction and self-lubricating properties.
Phosphating or black oxide coating: Improve wear resistance and reduce the potential for galling (severe adhesion between surfaces in motion).

What are the challenges in bushing production?

Key challenges include:

Maintaining precision: Ensuring dimensional accuracy across large production runs can be difficult, especially for complex shapes.
Material selection: Using the wrong material could result in failure under stress or environmental conditions.
Surface finish quality: Achieving smooth surface finishes is crucial to reducing friction and wear.

Can bushings be custom-made?

Yes, many manufacturers offer custom bushings based on specific requirements such as dimensions, load-bearing capacity, or environmental conditions. These custom bushings can be made from various materials and are typically used in specialized machinery or equipment.

What environmental factors are considered in bushing production?

Manufacturers consider several environmental aspects:

Material sustainability: Using eco-friendly or recyclable materials.
Waste management: Minimizing production waste and properly handling hazardous materials.
Energy consumption: Optimizing energy use in production processes to reduce carbon footprint.

What is the purpose of a bushing?

The lifespan of a bushing depends on various factors, including the material, load, speed, environment, and maintenance. Proper lubrication and regular inspections can extend the life of bushings significantly.

How can I tell when a bushing needs to be replaced?

Signs that a bushing may need replacement include:

Cracks, splits, or visible damage.
Increased noise, such as squeaking or grinding.
Excessive play or movement in the component where the bushing is installed.
Vibration or instability in the machinery or equipment.

How do I maintain bushings?

Maintenance involves regular inspection and lubrication (if required). Some bushings are self-lubricating, but others may need periodic greasing to reduce wear. Keeping the surrounding area clean from dirt and debris can also extend their lifespan.

What is the difference between a bushing and a bearing?

A bearing typically contains rolling elements (like balls or rollers), while a bushing is a simpler component, usually a sleeve that allows for sliding motion between parts. Bearings are generally used for high-speed, low-friction applications, while bushings are suitable for more straightforward, lower-speed applications with higher friction.

How long do bushings last?

The lifespan of a bushing depends on the material, load, speed, and environmental conditions. In optimal conditions with proper maintenance, bushings can last several years. However, harsh conditions such as heavy loads, extreme temperatures, or lack of lubrication can shorten their lifespan.

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Steel Bushing

Copper Bushing

Contact Us for More Information

We not only provide high-quality self-lubricating bushings but also offer comprehensive technical support and after-sales service to ensure your equipment always operates at peak performance. If you have any questions or need a quote, please feel free to contact us at any time.

Tel/Whatsapp： +86 136 4583 4002

Email：myway@mybushing.com