Wheel Axle

Design and Application

Structure and Design: Wheel axles are typically made of high-strength alloy steel or carbon steel to ensure their load-bearing capacity and resistance to deformation.
Core Specifications and Compatibility: The wheel axle must precisely match the wheel hub. Key specifications include:
Wheel Hole Diameter: The diameter of the axle where it passes through the wheel; common specifications include 20 millimeters.
Total Length and Effective Support Length: The total length determines the width of the wheel that can be installed, while the support length (e.g., "tube length") affects the stability of the fixing. For example, specifications exist with a total length of 14.5 cm and a tube length of 10.5 cm.
Thread Size: The size of the threads at the axle end and the corresponding nut, used for fastening.
Related Accessories Ecosystem: The effective operation of the wheel axle requires the cooperation of other accessories:
Wheels: Wheels made of different materials such as PU (wear-resistant and shock-absorbing) and polyurethane (oil-resistant and low-noise) are selected according to the application.
Bearings: Installed between the wheel axle and the wheel, they convert sliding friction into rolling friction, which is crucial for smooth operation. They are mainly divided into needle roller bearings (high load capacity) and ball bearings.
Fasteners: Such as circlips, used to securely fix the wheel to the axle, preventing lateral detachment.

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