Grey Iron Bearing housings support your bearings, protect them from contaminants while keeping in lubricant, and can also house monitoring equipment. Essentially, they provide customizable mounted bearing solutions and help maximize performance, service life and cost-efficient maintenance of the incorporated bearing. Custom grey iron bearing blocks are widely used in heavy duty industry, like manufacturing plant, machinery repair ships, farms.
OEM & ODM Cast Iron Bearing Housings
Hengchang is the leading producer of gray, ductile iron in China, melting more than 6000 tons per year, with more than 15 years experience. Our custom products widely use in different area, such as water pumps, valves, oil & gas, metallurgy, municipal, rail roads, sport, foodservice industry, automotive, agriculture machine, construction, etc. Welcome to visit Hengchang, the leading manufacturer in the foundry industry, and learn how our quality, consistency and service to support you win more market shares.
Cast iron is a class of iron-carbon allys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through,grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile iron has spherical graphite "nodules" which stop the crack from further progressing.
Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel.
Cast iron tends to be brittel, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are used in pipes, machines and automotive industry parts, such as cylinder heads,, cylinder blocks and cylinder blocks and gearbox. It is resistant to damage by oxidation.
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Comparative qualities of cast irons
Name |
Nominal composition [% by weight] |
Form and condition |
Yield strength [ksi (0.2% offset)] |
Tensile strength [ksi] |
Elongation [%] |
Hardness [Brinell scale] |
Uses |
Grey cast iron (ASTM A48) |
C 3.4, Si 1.8, Mn 0.5 |
Cast |
— |
50 |
0.5 |
260 |
Engine cylinder blocks, flywheels, gear box cases, machine-tool bases |
White cast iron |
C 3.4, Si 0.7, Mn 0.6 |
Cast (as cast) |
— |
25 |
0 |
450 |
Bearing surfaces |
Malleable iron (ASTM A47) |
C 2.5, Si 1.0, Mn 0.55 |
Cast (annealed) |
33 |
52 |
12 |
130 |
Axle bearings, track wheels, automotive crankshafts |
Ductile or nodular iron |
C 3.4, P 0.1, Mn 0.4, Ni 1.0, Mg 0.06 |
Cast |
53 |
70 |
18 |
170 |
Gears, camshafts, crankshafts |
Ductile or nodular iron (ASTM A339) |
— |
Cast (quench tempered) |
108 |
135 |
5 |
310 |
— |
Ni-hard type 2 |
C 2.7, Si 0.6, Mn 0.5, Ni 4.5, Cr 2.0 |
Sand-cast |
— |
55 |
— |
550 |
High strength applications |
Ni-resist type 2 |
C 3.0, Si 2.0, Mn 1.0, Ni 20.0, Cr 2.5 |
Cast |
— |
27 |
2 |
140 |
Resistance to heat and corrosion |
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The Grades of Cast Iron We Pour for our Custom Cast Iron Bearing Block
Gray Iron: HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40. Ductile Iron or Nodular Iron: GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2; QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;
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Product detail
Material |
Gray iron ,ductile iron, brass, carbon steel, copper, aluminum, alloy steel, etc |
standard |
ASTM, ASME,DIN, EN, BS, JIS, ANSI, AS,GB etc. |
process |
Green sand casting ,resin sand casting, shell molding casting,vacuum casting, continuous concast, machining |
Weight range |
0.5-2,000kg |
Surface treatment |
painting, polishing, heat treatment, annealing or galvanization etc. |
Size and design |
As per the customer's drawings, samples and requirements |
Machining |
complete machining such as CN machining,CNC lathe,CNC milling,drilling etc. |
Packing |
As per customers' requirements |
Inspection |
in-house or the third Party |
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Grey & ductile iron casting:
- weight: 0.5-2000KG
- technology: Green sand, resin sand, vacuum casting, shell molding
- production line: DISA line, auto molding line, manual molding machine
- application: Pump, valve, automobile, agriculture, municipal, sports, metallurgy other mechanical field
Vacuum moulding line:
- available material: grey iron, ductile iron and alloy steel
- flask dimension: 1,000 mm × 800 mm × 500 mm
- weight scope: 0.5-100kgs
Resin Sand moulding line:
- available material: grey iron, ductile iron and steel
- flask dimension: 4200*4200*2000mm
- weight scope: 10-2000kgs
Moulding Autoline:
- available material: grey iron, ductile iron
- flask dimension:
- 508*609*250mm
- 350*450*150mm
- 400*500*180mm
- weight scope:0.2-50kgs
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Our Advantages in Sand Casting Field:
• Over 15 years of experience in sand casting, shell molding casting and machining technology. • Dimensionally accurate cores for complex internal contours. • Strictly control the raw materials. • Quality management throughout the production process and maximum process reliability.
Available Grade of Gray Iron in our Foundry: FC150, FC200, FC250, HT150, HT200, HT250; EN-GJL-150, EN-GJL-200, EN-GJL-250, GJL-250
Hengchang are producing various grey iron casting products for overseas customers in Japan, USA, Canada, Germany, Danmark, Russia and Dubai.
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Zhangzhou Hengchang Machinery Manufacturing Co.,Ltd Products photos
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