
Tungsten Carbide Electrical Oil Bushing for Excavator
DALON self-lubricating custom bronze bushing are manufactured of pressed copper and tin powders by sintered technology and impregnated with lubricating oil and high porosity (20-25% in volume). The oil contained in the porosity provides a constant lubrication between bearing and shaft, the system does not need any additional external lubricant, allows this type of sintered bronze bushing to work under hydrodynamic conditions. which resulting in a very low friction coefficient and maintenance-free for general engineering applications.
Product Introduction
We take the science and technology as the forerunner, devotes to the automation, the informationization, the intellectualization, innovates unceasingly, provides the high quality Iron Sintered Self Lubricated Bushes, self lubricating bushing, bronze bearing for the customer. Our company insists on the route of common prosperity, development relies on staff, development for staff, and development results are shared with staff. We are confident to be your preferred partner with our in-depth understanding of customer needs, as well as continuous optimization of production quality management and after-sales service system. We are developing our own sales and customization business for global customers. We'll work whole-heartedly to improve our solutions and services.


DALON Electrical Bushing consist of a sintered bronze body. The main feature of Electrical Bushing is their porous design, which contains oil lubricant, which should be the viscosity decrease due to increasing operating temperatures due to friction, the oil leaks out. At higher speed, a lubrication wedge develops, which lowers the bushing's friction.
The powdered metallurgy process is a mass production process that can reduce costs to a level that can be startlingly low when compared to CNC machining. An added benefit of the sintered Electrical Bushing are the unique pores that are formed in the structure of the metal. These pores can serve as a reservoir for lubricant, providing a passage to the bearing surface. This unique feature adds the benefit of self-lubrication to many powdered metal bearings.
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Material Specifications |
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Composition |
Density |
Porosity |
K Strength Constant |
Tensile Strength |
Elongation |
Yield PSI |
Comparable Designations |
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(gm/cc) |
(% by Vol.) |
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(in 1" %) |
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Copper 87.5-90.5 |
6.4-6.8 |
19 min |
26,500 |
14,000 |
1 |
11,000 |
ASTM B-438-70 |
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Iron 1.0 max |
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GR1 Type II |
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Tin 9.5-11.5 |
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MPIF CT-0010-R |
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Carbon 1.75 max |
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Mil-B-5687C |
Storage of Electrical Bushing – These bearings must be stored in non-absorbing containers. Do not store in paper or cloth container. Do not store in cardboard boxes. The best containers are made of plastic or metal.
Supplementary Lubrication – Additional lubrication can be provided through the use of oil soaked felts, wicks, etc. or by periodic oiling. A unique advantage of this type of bearing is that it does not require any grooving or holes to distribute the oil across the bearing face due to the microscopic pores in the bearing material.
Custom Made Electrical Bushing – Custom Electrical Bushing can be designed and manufactured according to customer specifications, including requirements for special dimensions and/or materials. Please offer your drawings by email and we will made a quotation quickly.







The company adheres to the business philosophy of "integrity, efficiency, innovation and win-win", insists on the road of scientific and technological innovation and sustainable development, and takes the responsibility of building an advanced brand in the Tungsten Carbide Electrical Oil Bushing for Excavator industry. The company continuously strengthens basic management, perfects and improves rules and regulations, and continues to implement target management. We take the company's business as a common entrepreneurial platform, forming a team with strong fighting force, up and down, unity and cooperation.
Hot Tags: electrical bushing, China, manufacturers, suppliers, factory, wholesale, custom, stainless steel mesh filter cartridge, Sintered Iron Fan Bushing, Graphite Impregnated Bronze Bushings, Self Lubricating Bronze Bushing, electric motor bushing, Sintered Bronze Filter
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