How are the two halves of a divided wheel sealed together?

The two halves of a divided wheel are sealed together by an o-ring. An o-ring is a rubber or elastomeric ring that is specifically designed to provide a tight seal between two surfaces. When the halves of the wheel come together, the o-ring is compressed, filling the gap and preventing the leakage of air or fluids. This method is particularly effective because o-rings are flexible and can accommodate slight variations in the surfaces they are sealing, ensuring a reliable barrier.

Using screws or welding might not provide the necessary flexibility and tightness needed for optimal sealing in applications where pressure and dynamic forces are present. Adhesives could potentially be an option, but they may not offer the same level of durability and ease of maintenance as an o-ring, which can be replaced independently without damaging the wheel itself. Therefore, the use of an o-ring is the preferred method for sealing the halves of a divided wheel in mechanical applications.