What is SDX Bearing? (2)

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  What is SDX Bearing? (2) ✅ FAQ 1. What is the difference between SDX and dry-bearing SDU? SDU is a dry-bearing that can operate without lubrication and is resistant to most solvents and industrial fluids. On the other hand, SDX bearings are pre-lubricated by applying grease during assembly and are generally used in agricultural machinery, hydraulic machinery, and automobiles. 2. What is the plating material for the outer diameter? It is usually tin-plated with a thickness of about 0.002 mm, and copper plating is available upon request. 3. Is there any difference in performance depending on the POM colors? There is no difference in the performance and price from the standard product (yellow POM + tin plating). Other colors besides yellow POM can be made to order. SDX bearings with PEEK are recommended for high-temperature environments such as high-pressure gear pumps, water injection pumps, paint spraying, etc. 4. What material is recommended for the shaft? It can be used with all...
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Bronze Casting Processes for Oil-less Bearings (1)

 

Bronze Casting Processes 

for Oil-less Bearings (1)



Following the last letter about the main bronze materials for the oil-less bearings, today’s letter is about two bronze casting processes and their characteristics.

 


※ Sand-Casting


※ Sand Cast Bushings


1. Sand Casting

 

Sand casting is a casting process characterized by using sand as the mold material, which can be used for both ferrous and non-ferrous metals. It is widely used in the mass production of industrial units such as automotive metal casting parts such as engine blocks, cylinder heads, crankshafts, etc.

 



2. Oilless Bearings 
 

Centrifugal casting is a process of manufacturing cylindrical parts using centrifugal force.

This type of metal casting uses a preheated rotating die into which molten metal is poured. Centrifugal force helps distribute molten metal within the die at high speed.

 


The molten metal flows in and is distributed in the mold at high speed to prevent poor fluidity and improve the texture.

Since high pressure is applied to the molten metal, casting tissue is dense and has no pores. In addition, the separation and removal of metal inclusions are performed quickly due to the difference in specific gravity.



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Bronze Casting Processes for Oil-less Bearings(3)

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  Bronze Casting Processes  for Oil-less Bearings (3) The last letter  covered Horizontal Continuous Casting, and we will introduce Metal Extrusion as the final episode of the casting process for oil-less bearings. Extrusion   Extrusion is a forming process that enables the continuous production of tubular or rod-shaped products with a uniform cross-section by extruding material through a mold. The material coming out of the mold is called the extrudate, and non-metals such as ceramics, plastics, and polymers are also suitable for extrusion.   UBE 2,750 ton Hot Extrusion Machine   Extrusion at room temperature is called cold extrusion, and extrusion by heating the billet above its recrystallization temperature to soften the metal is called hot extrusion. The extrusion process has a high initial cost and requires high compressive force, but it has many advantages technically and economically. Heated Billet Before Extrusion   Continuous casting allows th...
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SGO THEDVELON Bearings

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  SGO THEDVELON Bearings SGO THEDVELON THEDVELON  is a type of oilless bearing that  offsets the disadvantages of the sintered metal bearings by applying a heat treatment on a steel-backed material. It can be used for medium to high loads by supplementing the insufficient mechanical rigidity through diffusion-bonding the sintered layer and the back-steel, and the porosity of the sintered layer can also be varied. While it has an excellent abrasion resistance, it is highly price competitive owing to lower material costs compared to the conventional brass bearings. For any inquiries about   THEDVELON , please contact us by clicking the button below. INQUIRY
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Types and Characteristics of Major Copper Alloys used for Oil-less Bearings

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  Types and Characteristics of  Major Copper Alloys used for Oil-less Bearings SGO mainly manufactures Oil-less bearings using high-strength brass but used different bronzes per application. We will introduce the most used bronzes with characteristics and their uses. ※ KS D 6024 We have only introduced five materials that have been asked a lot, and there are many other copper alloy materials. You need to choose the base metal and solid lubricant depending on the working load, speed, and other working conditions of the bearings. SGO has a one-stop process from material to finished product, so if you need advice on Oil-less bearing, please don't hesitate to contact us. INQUIRY
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