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Dedicated to the classification of materials used in Shanghai helical gear reducer bearings

Source: rubyrad.com Release time: 2015-12-01

The bearing is a component that supports the Shanghai helical gear reducer , reduces the friction coefficient during its movement, and guarantees the accuracy of the period of rotation. Due to the nature of the bearing, the bearing is most suitable for being made of metal materials, because metal materials With good mechanical properties, physical properties, chemical properties and process properties, it is used as the most commonly used material for the production of bearings for Shanghai Helical Gear Reducers. We should also know that the scope of metal materials is very broad, so it is not possible to have only one type of metal material used for making bearings. They can also be classified:
1. Ferrous metal 1. Alloy steel In order to improve the performance of steel, consciously add a certain amount of alloying elements to carbon steel, such as silicon, manganese, chromium, nickel, molybdenum, vanadium, titanium, etc., to form alloy steel. Due to the addition of alloying elements, the grains of the steel are refined, and the comprehensive mechanical properties, heat hardness, and permeability of the steel are improved. Generally can be divided into three types of alloy structural steel, alloy tool steel, special structural steel. Among them, alloy tool steel is commonly used to manufacture various cutting tools, measuring tools, and molds, so the corresponding ones are cutting tool steel, measuring tool steel, and mold steel. The special performance alloy steel refers to a kind of high alloy steel with special physical and chemical properties, mainly including stainless steel, heat-resistant steel and magnetic steel.
2. Carbon steel with iron content of 2.06% or less is called steel. Carbon steel can be rolled into reducer gear shafts, plates and profiles, and can also be forged into various shapes of forgings. This kind of carbon steel includes ordinary carbon structural steel, high-quality carbon structural steel, carbon tool steel, cast steel, etc. Among them, ordinary carbon structural steel is usually rolled steel plate, section steel, bar steel, etc., and can be welded, riveted, bolt Most of the linked general engineering components do not require heat treatment and can be used directly in the supply state.
3. Cast iron is an iron-carbon alloy with a carbon content greater than 2.06%. The carbon content of cast iron commonly used in the industry is generally 2.5% to 4.05%. Because cast iron has good castability, shock resistance, machinability, and certain mechanical properties, and is inexpensive and simple in production equipment, it is used in reducer gears. The shaft material occupies a large proportion, and it is widely used to make various shaped parts such as various frames, bases, boxes, and cylinder liners. There are white cast iron, gray cast iron, ductile cast iron, and malleable cast iron. Gray cast iron has good forgeability, wear resistance, shock resistance, and machinability, so it is the most widely used type of cast iron in production.
2. In the production of non-ferrous metals, iron and steel are usually called ferrous metals, and copper, aluminum, magnesium, lead, and their alloys are called non-ferrous metals. Because non-ferrous metals have certain special properties, such as good thermal conductivity, electrical conductivity, and corrosion resistance, they have become indispensable important materials for reducer gear shafts.
As an important component to support the normal operation of Shanghai helical gear reducer, it is necessary to understand it. Only by having a deep understanding of each component can we better understand Shanghai helical gear reducer.


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