Carbon Steel Parallel Key

Structure and Working Principle
Structure: Carbon steel flat key is a rectangular mechanical component with a cross-section usually square or rectangular, and its length depends on the actual application scenario.

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Mechanical parts carbon steel flat key
Working principle: Relying on two sides as working surfaces, the flat key is embedded into the keyway of the shaft and hub during assembly. The torque is transmitted through the compression between the key and the keyway side, achieving circumferential fixation and power transmission between the shaft and hub.
Material characteristics
High strength: Carbon steel has high strength and hardness, and can withstand large loads. In medium and heavy-duty mechanical transmissions, the use of carbon steel flat keys can ensure the reliability of key connections and prevent deformation or fracture of keys when transmitting torque.
Low cost: Carbon steel is a common metal material with a relatively low price. For some mechanical products that require high cost control, carbon steel flat keys are an economical and practical choice.
Good processing performance: Carbon steel has good machinability and can be processed through forging, cutting, heat treatment and other processes to meet the requirements of keys of different shapes and sizes. It can also be improved in hardness and strength through heat treatment processes such as quenching and tempering, making it more durable.
Types and standards
Types: Common types include A-type (round headed flat key), B-type (square headed flat key), and C-type (single round headed flat key). The two ends of the A-type flat key are semi-circular, the two ends of the B-type flat key are square, and the one end of the C-type flat key is semi-circular and the other end is square.

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Mechanical parts A-type carbon steel flat key
Standards: Common international standards include DIN 6885, ISO 773, etc. In China, there are related standards such as GB/T 1096, which provide detailed regulations on the dimensions, tolerances, materials, and other aspects of carbon steel flat keys.
application area
In the field of industrial equipment, such as pumps, valves, wind power generation equipment, power equipment, petrochemical equipment, etc., it is commonly used to connect shafts and transmission components such as gears, sprockets, and pulleys to ensure stable power transmission and normal operation of equipment.
In the field of mechanical processing, it is used in machine tools, milling machines, drilling machines and other mechanical processing equipment to connect the spindle with cutting tools, fixtures and other components, ensuring processing accuracy and production efficiency.
In the field of automobile manufacturing, it has a wide range of applications in components such as engines, transmissions, and driveshafts, which can ensure the reliable transmission of automobile power systems and the safe driving of vehicles.