Cast Iron Gear

Cast Iron Gear Specification

Gear Type
Spur Gears

Material
Iron

Processing Type
Hobbing

Gear Tooth Profile
Other

Product Type
Cast Iron Gear

Cast Iron Gear Trade Information

Minimum Order Quantity
5 Pieces

FOB Port
Shenzhen

Supply Ability
10000 Pieces Per Month

Delivery Time
30 Days

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa

Main Domestic Market
All India

About Cast Iron Gear

Product Advantages

Cast iron gear has different characteristics depending on the cast iron material it chooses.

Good abrasion resistance

Due to the presence of graphite in the composition of cast iron materials, graphite is lubricating and forms a lubricating film during the friction of cast iron gear, thereby improving the wear resistance of the gear.

Good shock absorption

The graphite in cast iron materials can absorb mechanical vibration energy and hinder vibration propagation, so it can show good shock absorption performance in cast iron gear and reduce noise during operation.

Lower cost

The cost of cast iron materials is lower than that of stainless steel, copper alloys and other materials, and because it contains graphite, its cutting performance is also better, and the tool wear is small during processing, so it has lower material costs and processing costs.

Material Selection

The materials that can be selected for cast iron gear are gray cast iron, ductile iron, alloy cast iron, etc. The table below shows the characteristics and applications of gears made from different cast iron materials.

	Gray cast iron	Ductile cast iron	Alloy cast iron
Peculiarity	Good shock absorption, wear resistance, processing performance and casting fluidity, but low strength, poor toughness, and impact resistance.	It has high hardness and toughness, comprehensive performance close to steel materials, and good shock absorption and wear resistance.	Gray cast iron or ductile iron is used as the base material, and other alloying elements are added to enhance the strength, hardness, wear resistance and heat resistance of the material.
Commonly Used Grades	HT250,HT300,etc.	QT200,QT400,etc.	nickel-chromium cast iron, chromium-molybdenum cast iron, etc.
Scenario	Suitable for low-speed, light-load, impact-free gears.	Suitable for medium to heavy loads with gears that can withstand some impact.	For special gears that require high wear resistance, corrosion resistance, or the ability to operate at higher temperatures.

Performance Parameters

When producing cast iron gear, the specific performance parameters can be determined according to the actual working conditions of customers, and the following is the main performance parameter table for your reference.

Parameter	Illustrate
Diameter Range	3 mm - 300 mm Small diameter (<20mm): Ductile iron is often used. Medium and large diameter: suitable for all types of cast iron, gray cast iron is mostly found in large low-speed gears.
Tooth Type	Straight teeth: the most common Helical gear: smooth transmission, less noise, higher load carrying capacity Bevel Teeth: Used for intersecting shaft drives, ductile iron is a common choice. Internal gears: can achieve a compact structure, casting can form complex internal teeth well.
Modulus Range	0.1 mm 5.0 mm
Applicable Standards	ISO 1328, DIN 3962, GB/T 10095
Accuracy Level	ISO/DIN/GB level 6 (after finishing)
Tensile Strength	Gray iron150 - 350 MPa Ductile iron400 - 800 MPa
Tooth Surface Hardness	Gray iron170 - 250 HB Ductile iron: 170 - 300 HB (cast or normalized).
Surface Treatment	Phosphating treatment Oxidation and blackening Surface quenching Galvanized/nickel