
High Voltage Epoxy Resin Insulation Bushing for Electrical Switchgear/Rmu
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
With a new attitude, open-mindedness, sincere cooperation and sincere service, we will standardize our operation, develop and innovate, and create greater value for the development of the porous plastic sheet filter, Sintered Muffler, thrust plain bearing industry. Our company's most valuable resource is the people who are enthusiastic and committed to doing their jobs well. The company continues to work hard to develop and innovate products, and strive to gain a place in the industry as soon as possible. We will continue to stabilize the domestic and overseas markets with high-quality products, manufacture reliable and trustworthy products for customers, and create the greatest value. Through enterprise training, our company provides new working ideas for the company, increases employees' talents, knowledge, information, skills, dedication and innovation spirit, and effectively improves our industry competitiveness.


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.







Through communication with customers, we constantly improve our High Voltage Epoxy Resin Insulation Bushing for Electrical Switchgear/Rmu, and even exceed customer expectations. It is not just about selling products, but about building long-term relationships with our customers, and to build such relationships, trustworthiness is the most important characteristic. We are committed to build an international level modernized enterprise talent strength, and lay the foundation for the long-term development of the enterprise.
Hot Tags: electrical bushing, China, manufacturers, suppliers, factory, wholesale, custom, brass sleeve bushing, Graphite Bronze Bushing, Pneumatic Sintered Brass Muffler, Pipe Cap Filters, disposable water filter, Wire Filters
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