A4 stainless steel bars

Key bar din 6880 - A4 stainless steel bar

A4 stainless steel bars
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Key bars play a crucial role in numerous mechanical and industrial applications, ensuring the transmission of power and keeping parts in place. In particular, A4 stainless steel key bars in accordance with DIN 6880 are recognized for their precision and robustness.

What is a key bar?

A keyway is a rectangular-shaped metal piece inserted into corresponding grooves in two mechanical components to lock them together, thus allowing the transmission of torque and preventing relative movement between the parts.

DIN 6880 standard

The standard din 6880 specifies the dimensions, tolerances and materials of keybars. This standard ensures that key bars are compatible and interchangeable, ensuring efficient installation and operation in mechanical systems.

Properties of A4 stainless steel

A4 stainless steel offers an ideal combination of corrosion resistance, mechanical strength and acid resistance, making it a preferred choice for keybars. Unlike A2 stainless steel, A4 stainless steel is also resistant to chlorinated and saline environments, making it suitable for more corrosive environments.

Comparison between A2 stainless steel and A4 stainless steel

The main difference between A2 stainless steel and A4 stainless steel is their chemical composition and corrosion resistance. A4 stainless steel contains more chromium, nickel and sometimes molybdenum compared to A2 stainless steel, which gives it better resistance to chemical attacks, especially in aggressive marine or industrial environments.

Applications of an A4 stainless steel key bar

Power transmission

A4 stainless steel key bars are widely used in power transmission systems to attach shafts to hubs, gears and pulleys, allowing for efficient transmission of torque.

Industrial machinery

In industrial machines, A4 stainless steel key bars maintain the alignment and fixing of rotating components, guaranteeing the smooth and safe operation of the equipment.

Automotive and aeronautics

A4 stainless steel keybars are essential in automotive and aircraft vehicle steering systems, engines and transmissions, where reliability and safety are paramount.

Advantages of an A4 stainless steel key bar

Accuracy and compatibility

A4 stainless steel keybars offer exceptional dimensional accuracy thanks to the H9 tolerance, ensuring perfect compatibility with mechanical components that comply with the DIN 6880 standard.

Ruggedness and durability

A4 stainless steel is extremely robust and durable, capable of withstanding high loads and difficult operating conditions, thus extending the life of assemblies.

Wear-resistance

A4 stainless steel bars offer excellent wear resistance, minimizing maintenance and frequent replacements, making them an economical and reliable choice for industrial applications.

How do I choose the right key bar?

To choose the appropriate key bar, it is important to consider:

  • Dimensions: The dimensions must correspond to the grooves of the components to be assembled.
  • Material: The type of stainless steel must be chosen according to the loads and conditions of use.
  • Standards: Make sure the bar complies with relevant standards like DIN 6880.

For applications requiring high precision and increased robustness, A4 stainless steel key bars are an excellent choice. Their dimensional tolerance and mechanical properties make them ideal for harsh industrial environments.

Installing A4 stainless steel key bars

Installation steps

  • Preparation: Make sure component grooves are clean and free of debris.
  • Inserting the bar: Insert the A4 stainless steel key bar into the shaft groove.
  • Assembly: Slide the hub or pulley onto the shaft, aligning the groove with the keybar.

To install a keyway, you will need:Hammer: To insert the A4 stainless steel keybar into the groove.Punch: To properly align the bar in the groove.Gauge: To check dimensional tolerances.

In summary, A4 stainless steel keybars, which comply with DIN 6880, are essential components for numerous industrial applications. Their precision, their robustness and their resistance to wear make them preferred choices for the transmission of power and the fixing of rotating components.

A4 stainless steel bars

Key bar din 6880 - A4 stainless steel bar

A4 stainless steel key bars. On request we can offer you special dimensions and tolerances, special lengths, as well as all other steel grades and heat treatment.

  • DIN 6880
  • A4 stainless steel
  • H9 tolerance
  • Length 500, 1000 or 3000mm
  • Dimensions 2x2mm to 45x25mm
Section (Stainless steel 316Ti X6CrNiMoTi17-12-2)Tolerance h9
2x2h9xh9
3x3h9xh9
4x4h9xh9
5x5h9xh9
6x4h9xh11
6x6h9xh9
8x7h9xh11
10x8h9xh11
12x8h9xh11
14x9h9xh11
16x10h9xh11
18x11h9xh11
20x12h9xh11
22x14h9xh11
25x14h9xh11
28x16h9xh11
32x18h9xh11
36x20h9xh11
40x22h9xh11
45x25h9xh11
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Key bars play a crucial role in numerous mechanical and industrial applications, ensuring the transmission of power and keeping parts in place. In particular, A4 stainless steel key bars in accordance with DIN 6880 are recognized for their precision and robustness.

What is a key bar?

A keyway is a rectangular-shaped metal piece inserted into corresponding grooves in two mechanical components to lock them together, thus allowing the transmission of torque and preventing relative movement between the parts.

DIN 6880 standard

The standard din 6880 specifies the dimensions, tolerances and materials of keybars. This standard ensures that key bars are compatible and interchangeable, ensuring efficient installation and operation in mechanical systems.

Properties of A4 stainless steel

A4 stainless steel offers an ideal combination of corrosion resistance, mechanical strength and acid resistance, making it a preferred choice for keybars. Unlike A2 stainless steel, A4 stainless steel is also resistant to chlorinated and saline environments, making it suitable for more corrosive environments.

Comparison between A2 stainless steel and A4 stainless steel

The main difference between A2 stainless steel and A4 stainless steel is their chemical composition and corrosion resistance. A4 stainless steel contains more chromium, nickel and sometimes molybdenum compared to A2 stainless steel, which gives it better resistance to chemical attacks, especially in aggressive marine or industrial environments.

Applications of an A4 stainless steel key bar

Power transmission

A4 stainless steel key bars are widely used in power transmission systems to attach shafts to hubs, gears and pulleys, allowing for efficient transmission of torque.

Industrial machinery

In industrial machines, A4 stainless steel key bars maintain the alignment and fixing of rotating components, guaranteeing the smooth and safe operation of the equipment.

Automotive and aeronautics

A4 stainless steel keybars are essential in automotive and aircraft vehicle steering systems, engines and transmissions, where reliability and safety are paramount.

Advantages of an A4 stainless steel key bar

Accuracy and compatibility

A4 stainless steel keybars offer exceptional dimensional accuracy thanks to the H9 tolerance, ensuring perfect compatibility with mechanical components that comply with the DIN 6880 standard.

Ruggedness and durability

A4 stainless steel is extremely robust and durable, capable of withstanding high loads and difficult operating conditions, thus extending the life of assemblies.

Wear-resistance

A4 stainless steel bars offer excellent wear resistance, minimizing maintenance and frequent replacements, making them an economical and reliable choice for industrial applications.

How do I choose the right key bar?

To choose the appropriate key bar, it is important to consider:

  • Dimensions: The dimensions must correspond to the grooves of the components to be assembled.
  • Material: The type of stainless steel must be chosen according to the loads and conditions of use.
  • Standards: Make sure the bar complies with relevant standards like DIN 6880.

For applications requiring high precision and increased robustness, A4 stainless steel key bars are an excellent choice. Their dimensional tolerance and mechanical properties make them ideal for harsh industrial environments.

Installing A4 stainless steel key bars

Installation steps

  • Preparation: Make sure component grooves are clean and free of debris.
  • Inserting the bar: Insert the A4 stainless steel key bar into the shaft groove.
  • Assembly: Slide the hub or pulley onto the shaft, aligning the groove with the keybar.

To install a keyway, you will need:Hammer: To insert the A4 stainless steel keybar into the groove.Punch: To properly align the bar in the groove.Gauge: To check dimensional tolerances.

In summary, A4 stainless steel keybars, which comply with DIN 6880, are essential components for numerous industrial applications. Their precision, their robustness and their resistance to wear make them preferred choices for the transmission of power and the fixing of rotating components.

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