
Hot Sale Electrical Brass Transformer Porcelain Bushing
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 are committed to promoting the development of the world's 316 Sintered Stainless Steel Filters, Perforated Sintered Filter, Cylinder filter industry and building an internationally influential technology 316 Sintered Stainless Steel Filters, Perforated Sintered Filter, Cylinder filter brand. Our company continues to introduce advanced production and testing equipment to ensure product quality, and provide customers with high-quality and low-cost products as well as thoughtful and personalized services. Our enterprise operations will be carried out with a complete quality assurance system and excellent after-sales service.


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.







We strive to provide quality Hot Sale Electrical Brass Transformer Porcelain Bushing and considerate services to the public in industries closely related to human life. We are adhering to the enterprise spirit of "developing new products with advanced consciousness, creating new advantages with scientific management, ensuring high quality with rigorous style, and providing high service with integrity". We insist on pursuing the synergistic development of high quality and high efficiency, ensuring high quality is our company's commitment, and we strive to achieve the best in everything.
Hot Tags: electrical bushing, China, manufacturers, suppliers, factory, wholesale, custom, metal bushing sleeve, Stainless Wire Mesh Steel filter, rounded plastic filter, graphite bushing, Self Lubricating Bronze Bushings, front end bushing
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