What are the requirements for tooth plate processing of mountain bicycles?

Mountain bike tooth plate processing has the following requirements:

I. Material requirements

High strength: the dental disc needs to bear strong force from the legs, so the material must have sufficient strength to prevent deformation or fracture during use. Common materials are aluminum alloy and steel.

Lightweight: In order to improve the performance and riding efficiency of bicycles, the tooth plate should be as lightweight as possible. On the premise of ensuring strength, the weight of the whole vehicle can be reduced by selecting materials with lower density.

Corrosion resistance: Mountain bikes are often used in various harsh environments, such as rain and mud, so the dental disc material needs to have good corrosion resistance to prolong its service life.

Second, the dimensional accuracy requirements

Pitch accuracy: the pitch of the tooth plate must be accurate to ensure a good fit with the chain. Excessive tooth pitch deviation will lead to chain jumping, unsmooth gear shifting, and even damage the chain and transmission.

Accuracy of center hole: the center hole of the tooth plate is matched with the middle shaft of the bicycle, and its dimensional accuracy directly affects the installation stability and rotation accuracy of the tooth plate. The diameter, roundness and cylindricity of the central hole need to be controlled within a small tolerance range.

Uniform disc thickness: the thickness of each disc of the tooth disc should be uniform, otherwise it will affect the tension and shift performance of the chain. At the same time, the flatness of the disc also needs to meet certain requirements to ensure good contact with the chain.

Third, the surface treatment requirements

Smoothness: The surface of the dental disc should be smooth and flat to reduce friction and wear. High surface finish can improve the transmission efficiency of the dental disc and prolong its service life.

Anti-rust treatment: As mentioned above, mountain bike tooth plates need to have good corrosion resistance. Therefore, after the processing is completed, anti-rust treatment, such as electroplating and spraying, is usually carried out.

Aesthetic requirements: as one of the important parts of bicycle, the appearance of dental disc is also very important. Surface treatment can make the dental disc have a good appearance and increase the overall aesthetic feeling of the bicycle.

Fourth, the mechanical performance requirements

Hardness: the teeth of the tooth plate need to have a certain hardness to resist the wear and impact of the chain. Through reasonable heat treatment process, the hardness and wear resistance of dental disc can be improved.

Toughness: while ensuring hardness, the dental disc needs to have certain toughness to prevent brittle fracture when it is impacted. Proper material selection and heat treatment process can make the dental disc have good toughness.

In a word, the machining requirements of mountain bike tooth plate are strict, and certain standards need to be met in material selection, dimensional accuracy, surface treatment and mechanical properties to ensure its performance and quality.