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Bronze Graphite Bushings – Graphite Bushing Bearing Supplier
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Bronze graphite bushings are mainly made of a high-strength copper alloy as the base, with the base inlaid as a special formula of solid lubricating material as a lubricating medium to replace the traditional oil groove copper bushings.
High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.
High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.
High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.
High hardness, wear-resistance, and fully comply with EU ROHS standards. Can provide spectrometer composition test, strength test.
At www.bronzeoilless.com, we specialize in crafting top-quality bushings that find applications in various industries. From die sets and metal stamping dies to molds, special machines, and heavy equipment, our bushings are designed to meet diverse needs.
Our bronze graphite bushings are meticulously manufactured using solid aluminum bronze. We offer the flexibility of ordering them with or without self-lubricating graphite, ensuring optimal performance. Our inventory boasts a wide selection of inch and metric sizes, encompassing all sleeve bushing dimensions.
In situations where a standard bushing falls short, bronzeoilless.com rises to the occasion. Our expertise allows us to create custom bushings with ease, tailored to your precise specifications and requirements. Regardless of the size you need, we deliver cost-effective solutions promptly and efficiently.
At our company, we take pride in offering a comprehensive range of cast bronze bearings and slide plates. Our product lineup includes cast bronze sleeve bearings, flange bearings, and customized parts, all designed to cater to your specific needs. These bearings can be equipped with either oil grooves or grease grooves, providing versatile options for lubrication.
When it comes to oil grooves and grease grooves, there are notable distinctions. Grease grooves are generally wider and deeper, enabling them to hold a sufficient amount of grease and facilitating its application. On the other hand, oil grooves tend to have varying widths but are shallower compared to grease grooves. Most oil grooves are used in constant loss or closed oiling systems, ensuring a steady supply of less viscous oil to the grooves. For grease applications, we recommend utilizing double loop grooves and double figure eight groove configurations.
For those seeking maintenance-free solutions, we offer bronze bearings with graphite-filled grooves and graphite plugs. The graphite acts as a dry lubricant, providing continuous lubrication without the need for regular maintenance. The ID groove patterns can be filled with a specialized hardenable graphite paste, while graphite plugs can be securely fitted through the bearing wall using a special epoxy resin binder. Typically, the graphite plugs have a diameter of 7mm and cover approximately 25% of the surface area. They can be strategically placed around specific features of your parts. It’s important to note that graphite bronze parts should operate without the use of oil or grease. Our graphite plug bearings typically exhibit a coefficient of friction ranging from 0.10 to 0.15, depending on various performance factors.
We prioritize delivering high-quality products and services to meet your requirements, contact us now.
Graphite Plugged Bronze Bushing Material
Material response table
| Material Code | Chinese | International | German | Japan | U.S. | U.K. | France | Applicable |
| Alloy Copper | ZCuZn25Al6 | GCuZn25Al6 | DIN1709 | H5102 | B30-92 | HTB2 | High load, low speed, general use | |
| Fe3Mn3 | Fe3Mn3 | G-CuZn25Al5 | CAC304 | C86300 | ||||
| Alloy Copper | ZCuZn25Al6 | GCuZn25Al6 | DIN1709 | H5102 | B30-92 | HTB2 | High load, low speed, high load | |
| Fe3Mn3 | Fe3Mn3 | G-CuZn25Al5 | CAC304 | C86300 | ||||
| Cast tin bronze | ZCuSn5 | GCuPb5 | DIN1705 | H5111 | B30-92 | LG2 | CuPb5 | medium load, low speed |
| Pb5Zn5 | Sn5Zn5 | G-CuSn5ZnPb | BC6 | C83600 | Sn5Zn5 | |||
| Cast aluminum bronze | ZCuAl9Fe4 | GCuAl10 | DIN17656 | H5114 | B30-92 | AB2 | CuAl10 | Medium load, medium speed, general use |
| Ni4Mn2 | FeNi5 | G-CuAl10Ni | AlBC3 | C95500 | Fe5Ni5 | |||
| cast iron | GB5675-85 | FC250 | ASTM | medium load, low speed | ||||
| HT250 | Class40 |
Material composition and performance table
| chemical composition | CuZn25Al5Mn3Fe3 | CuZn25Al5Mn3Fe3 | CuAl9Fe4Ni4Mn2 | CuSn5Pb5Zn5 | CuSn12 | HT250 | Gcr15 |
| density (g/cm³) | 8 | 8 | 8.5 | 8.9 | 9.05 | 7.3 | 7.8 |
| hardness (HB) | ＞210 | ＞250 | ＞150 | ＞70 | ＞80 | ＞190 | HRC＞58 |
| tensile strength (N/mm²) | ＞750 | ＞800 | ＞800 | ＞200 | ＞260 | ＞250 | ＞1500 |
| Elongation (%) | ＞12 | ＞8 | ＞15 | ＞10 | ＞8 | ＞5 | ＞15 |
| Linear expansion coefficient | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1 | 1.1 |
| Operating temperature(℃) | -40~+300 | -40~+150 | -40~+400 | -40~+400 | -40~+400 | -40~+400 | -40~+400 |
| Maximum dynamic load(N/mm²) | 100 | 120 | 150 | 60 | 70 | 80 | 200 |
| Maximum line speed (m/min) | 15 | 15 | 20 | 10 | 10 | 8 | 5 |
| Maximum PV Lubrication | 200 | 200 | 60 | 60 | 80 | 40 | 150 |
| (N/mm²*m/min) | |||||||
| permanent compression set | ＜0.01 | ＜0.005 | ＜0.04 | ＜0.05 | ＜0.05 | ＜0.015 | ＜0.002 |
| 300N/mm² |
What are Bronze Graphite Bushings?
Bronze graphite bushings are cylindrical sleeves made from a bronze alloy that is infused with graphite particles. The graphite acts as a dry lubricant, reducing friction and wear between moving parts. These bushings are designed to withstand heavy loads, high temperatures, and harsh operating conditions.
Composition and Properties
Bronze graphite bushings are typically composed of bronze alloys such as tin bronze or aluminum bronze. The addition of graphite particles enhances their lubricating properties. The bronze matrix provides strength and durability, while the graphite ensures low friction and self-lubrication.
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Graphite Copper Bearing Factory – Mold Parts
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Mold guide pillars are used in combination with components in the mold to ensure that the mold moves and guides the mold stroke precisely.Bronzeoilless.com standard graphite bushing bearing, with high hardness, wear resistance, and good interchangeability, meet the production requirements of various molds. The unique heat treatment process and imported semi-automatic processing equipment greatly shorten the production cycle and effectively improve the quality of the mold guide pillar.
China Bronze Graphite Bushings Manufacturer
The bronze graphite bushings are machined from continuous cast bronze bar stock. They are then milled and plugged with solid lubricant graphite-based plugs. The plugged graphite bushings are great for applications where maintenance is difficult and where normal grease and oil-based lubricants can burn off due to high temperatures. The cast bronze base material gives these products stronger bearing abilities when compared to other self-lubricating bronze bushings.
Variable backing materials, such as bronze, brass, and other iron-based materials, are available for the oil-free graphite bushing.
We produce sliding plates, half-bearings, flanged bushes, thrust washer bearings, and cylindrical bushes in a range of forms and shapes from graphite bushes. It can also create any customized form or size to satisfy the customer’s requirements.
Continuous Cast Bronze Bushing With Graphite
Our self-lubricating bronze graphite bushings undergo a meticulous manufacturing process. They are precision-machined from continuous cast bronze bar stock, followed by milling operations to incorporate solid lubricant graphite-based plugs. These plugged graphite bushing bearing offer exceptional advantages for applications where maintenance poses challenges, and conventional grease and oil lubricants may experience burn-off due to elevated temperatures.
By selecting our self-lubricating graphite-plugged bronze sleeve bushings, you gain reliable and long-lasting solutions that effectively overcome maintenance difficulties and withstand high-temperature environments. Rest assured, our products are engineered to deliver outstanding performance and exceed your expectations.
Say goodbye to wear and tear with our high-performance bronze graphite bushings
Graphite Bushings And Bearings – Custom Material & Size
Graphite bushings and bearings are a complete line of Self-Lubricating Bushings that excel whenever standard lubrication is impractical, including heavy load, and high-temperature applications. Graphite Bushings with a solid lubricant are made of strong cast bronze-based metal with special solid lubricants embedded. , including C95400 Aluminum Bronze, C93200 Bearing Bronze, and C86300 Manganese Bronze. The bushing shows excellent performance without pre-lubrication under extremely high/lower temperature conditions with low speed. This material provides a maintenance-free bushing solution, particularly for high-load, intermittent oscillating motion.
HIGHLY EXPERIENCED SUPPLIER
Plugged Graphite Bronze Bushings | Features
There are several compelling reasons to choose our plug graphite self-lubricating products:
- Complete Self-Lubrication: No oil or grease is needed
- Our products exhibit exceptional wear resistance, particularly in demanding working conditions characterized by heavy loads, low velocities, reciprocating or oscillating motions, and intermittent movements where the formation of an oil film is difficult.
- Low Coefficient of Friction: Typical range of 0.04 to 0.2
- Wide Operating Temperature Range: -415°F to 1,100°F
- exhibit remarkable resistance to water and caustic chemicals
- high-precision products with close tolerances
- Cost-Competitive Solution
Upgrade your equipment today with our durable bronze graphite bushings.
Application Of Graphite Bushing Bearings
The applications for bronze graphite bushings are virtually unlimited. From hard maintenance applications to high-temperature environments to heavily loaded applications.
Bronze Graphite Bushing Bearing Exhibit Excellent Service And Wear Resistance. Such Applications Include:
Steel Mills, Furnace drag outs, Drying Equipment, Roasters, Heat Exchangers, Press dies, Assembly lines, Machine tools, Chain Conveyors, Offshore structures, Deck cranes, Winches, Hatch covers Rudder’s arms, Hoisting Equipment, Tire & Paper Mills, Toggle link bearings for injection mold machinery, Mixers, Grinders, Pulverizers, Construction Machinery, Mining rigs, Arm link bearings, Power shovels, and more.
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Graphite bushings impregnated To Achieve Self Lubricating
The so-called no oil supply means that there is no need to add oil or less oil. Our research aims to ensure that the graphite bushings impregnated can still perform well under this working condition and prolong its service life as much as possible.
The basic working principle of self-lubricating bearings is that in the initial running stage, the solid lubricant on the graphite bushings impregnated surface forms a transfer film due to mutual friction and coats the opposite abrasive parts to form a solid lubricating film to achieve the purpose of self-lubricating. The direct contact between the workpieces thus protects the abrasive parts and prolongs the service life of the bearing and the workpiece.
Bronze Graphite Bushings – High-Quality and Durable Bushings for Various Applications
In applications where a completely self-lubricating copper base alloy-bearing material is needed, our products are widely utilized. We offer a diverse range of standard sleeve and flanged bearings, available in both metric and imperial sizes. Additionally, we have the capability to manufacture custom parts tailored to your exact specifications. Our oilless bearings eliminate the need for oil or grease, as they rely on a graphite film that forms between the surfaces, providing a dependable mechanical barrier of lubrication. We also provide bearings with graphite-filled grooves and wear plates to enhance performance. At bronzeoilless.com, we offer a variety of bronze alloy options to meet the specific requirements of your application. Feel free to send us a drawing or sample, and we aim to provide you with a price quote within 24 hours. Enjoy the benefits of our totally self-lubricating bearings, where no oil or grease is required.
Exploring LG2 Bronze Graphite Bushings: A Trusted Choice in Industrial Applications
One such material that has stood the test of time in various applications is LG2 Bronze Graphite Bushings. These bushings, also known as C83600 Leaded Gunmetal Bronze, have a long history of excellence in providing reliable and efficient solutions for industrial needs.
The addition of graphite in LG2 bronze bushings enhances their self-lubricating capabilities, reducing the need for external lubrication and maintenance. This makes them ideal for applications where frequent lubrication is impractical or where contamination from traditional lubricants must be avoided.
These bushings are commonly used in machinery and equipment that require smooth and reliable rotational or sliding motion. They are known for their durability and ability to withstand heavy loads and harsh operating conditions. LG2 bronze graphite bushings are often used in industries such as agriculture, automotive, construction, and manufacturing.
Bronze Graphite Sleeve Bushings, Flanged Bushings, Thrust Washers, Radial Bearings
Bronze graphite sleeve bushings, flanged bushings, and thrust washers are types of mechanical components commonly used in various industries for their specific applications. Let’s briefly explain each of them:
Bronze Graphite Sleeve Bushings: These are cylindrical bearings made of bronze infused with graphite. The graphite provides self-lubricating properties, reducing friction and wear between moving parts. Bronze graphite sleeve bushings are often used in applications where frequent lubrication is impractical or where low-maintenance operation is required.
Flanged Bushings: Flanged bushings, also known as flanged bearings or bushings with flanges, have an extended flange at one end. The flange acts as a built-in support or stopper, providing axial guidance and preventing the bushing from moving out of position. Flanged bushings are commonly used in applications where axial movement needs to be limited or where the bushing needs to be securely held in place.
Thrust Washers: Thrust washers are flat, washer-like components used to support axial loads in rotary or linear motion systems. They are often made of bronze, brass, or other low-friction materials. Thrust washers provide a smooth bearing surface for rotating or sliding parts, minimizing friction and wear between them. They are commonly used in applications such as automotive transmissions, hydraulic systems, and industrial machinery.
Radial bearings are a type of rolling-element bearing designed to support radial loads, which are forces acting perpendicular to the shaft’s axis. They are commonly used in rotating machinery and equipment to enable smooth and low-friction motion.
These components play crucial roles in various mechanical systems, providing support, reducing friction, and extending the lifespan of moving parts. Their specific design and material properties make them suitable for different applications and operating conditions.
Graphite Bronze Bushing Size Chart
| RADIAL BEARINGS | FLANGED BEARINGS -THRUST WASHERS | ||||||||||
| Diameter mm | length B mm 1.0*Di 0.75*Di 1.25*Di | Diameter mm | Flange thickn. | Length mm | |||||||
| Di | Do | recom. | min | max | Di | D1 | Do | Dfl | Bfl/ST | B | |
| 10 | 15 | 10 | 7 | 13 | 10 | 15 | 20 | 2,5 | flanged bearing | ||
| 12 | 18 | 12 | 9 | 15 | 12 | 18 | 22 | 3,0 | |||
| 14 | 20 | 14 | 10 | 18 | 14 | 20 | 25 | 3,0 | |||
| 15 | 20 | 15 | 11 | 19 | 15 | 20 | 26 | 3,0 | |||
| 16 | 22 | 16 | 12 | 20 | 16 | 22 | 28 | 3,0 | |||
| 20 | 26 | 20 | 15 | 25 | 20 | 26 | 32 | 3,0 | |||
| 22 | 28 | 22 | 16 | 28 | 22 | 28 | 34 | 3,0 | |||
| 25 | 32 | 25 | 18 | 32 | 25 | 32 | 38 | 3,5 | |||
| 28 | 35 | 28 | 21 | 35 | 28 | 35 | 42 | 3,5 | |||
| 30 | 38 | 30 | 22 | 38 | 30 | 38 | 45 | 4,0 | |||
| 35 | 44 | 35 | 26 | 44 | 35 | 44 | 50 | 4,5 | |||
| 40 | 50 | 40 | 30 | 50 | 40 | 50 | 60 | 5,0 | |||
| 45 | 55 | 45 | 33 | 56 | 45 | 55 | 70 | 5,0 | |||
| 50 | 60 | 50 | 35 | 65 | 50 | 60 | 80 | 5,0 | |||
| 55 | 65 | 55 | 40 | 70 | 55 | 65 | 85 | 5,0 | |||
| 60 | 70 | 60 | 45 | 75 | 60 | 70 | 90 | ||||
| 65 | 76 | 65 | 45 | 80 | 65 | 76 | 95 | 5,5 | |||
| 70 | 82 | 70 | 50 | 85 | 70 | 82 | 100 | 6,0 | |||
| 75 | 88 | 75 | 55 | 90 | 75 | 88 | 105 | 6,5 | |||
| 80 | 95 | 80 | 60 | 100 | 80 | 95 | 110 | 7,5 | |||
| 85 | 100 | 85 | 60 | 105 | 85 | 100 | 115 | 7,5 | |||
| 90 | 105 | 90 | 65 | 115 | 90 | 105 | 120 | 7,5 | |||
| 95 | 110 | 95 | 70 | 120 | 95 | 110 | 130 | 7,5 | |||
| 100 | 115 | 100 | 75 | 125 | 100 | 115 | 140 | 7,5 | |||
| 110 | 125 | 110 | 80 | 140 | 110 | 125 | 150 | 7,5 | |||
| 120 | 135 | 120 | 90 | 150 | 120 | 135 | 160 | 7,5 | |||
| 140 | 160 | 140 | 100 | 175 | 140 | 160 | 180 | 10,0 | |||
| 150 | 170 | 150 | 110 | 185 | 150 | 170 | 190 | 10,0 | |||
| 180 | 200 | 180 | 135 | 225 | 180 | 185 | 200 | 230 | 10,0 | cylindrical bearing and thrust wahsher | |
| 200 | 220 | 200 | 150 | 250 | 200 | 205 | 220 | 250 | 10,0 | ||
| 225 | 250 | 225 | 170 | 280 | 225 | 230 | 250 | 275 | 12,5 | ||
| 250 | 275 | 250 | 190 | 315 | 250 | 255 | 275 | 300 | 12,5 | ||
| 280 | 310 | 280 | 210 | 350 | 280 | 285 | 310 | 340 | 15,0 | ||
| 300 | 330 | 300 | 225 | 375 | 300 | 305 | 330 | 360 | 15,0 | ||
| 350 | 380 | 350 | 260 | 435 | 350 | 355 | 380 | 420 | 15,0 | ||
| 400 | 435 | 400 | 300 | 500 | 400 | 405 | 435 | 480 | 17,5 | ||
| 450 | 490 | 450 | 340 | 560 | 450 | 455 | 490 | 530 | 20,0 | ||
| 500 | 540 | 500 | 375 | 625 | 500 | 510 | 540 | 600 | 20,0 | ||
| 550 | 590 | 550 | 415 | 690 | 550 | 560 | 590 | 650 | 20,0 | ||
| 600 | 640 | 600 | 450 | 750* | 600 | 610 | 640 | 720 | 20,0 | ||
| 650 | 700 | 650 | 490 | 815* | 650 | 660 | 700 | 780 | 25,0 | ||
| 700 | 750 | 700 | 525 | 875* | 700 | 710 | 750 | 840 | 25,0 | ||
| 750 | 800 | 750* | 560 | 940* | 750 | 760 | 800 | 900 | 25,0 | ||
| 800 | 850 | 800* | 600 | 1000* | 800 | 810 | 850 | 960 | 25,0 | ||
| 850 | 900 | 850* | 640 | 1060* | 850 | 860 | 900 | 1020 | 25,0 | ||
| 900 | 950 | 900* | 675 | 1125* | 900 | 910 | 950 | 1080 | 25,0 | ||
| 950 | 1000 | 900* | 710* | 1200* | 950 | 960 | 1000 | 1140 | 25,0 | ||
| 1000 | 1060 | 1000* | 750* | 1250* | 1000 | 1010 | 1060 | 1200 | 30,0 | ||
| 1200 | 1260 | 1200* | 900* | 1500* | 1200 | 1210 | 1260 | 1440 | 30,0 | ||
| * Splitted in length (2 x 0.5) for technical reasons | |||||||||||
| Length B = B1+Bfl/St Where B1 = bearing length and Bfl/St =flange or washer thickness | |||||||||||
Base Metal and Alloys
Selecting the proper base metal and alloy is crucial to the successful application of self-lubricated bushing. There are many factors to consider that influence the bearing suitability of the application. Some are Speed, Load, Environment, Mating Material, and Temperature.
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