ट्रेन के पहियों पर टायर नहीं होते, फिर वो घिसते नहीं हैं? कितने दिन में बदलते हैं?

Trains do not use rubber tires on their wheels because they are not suitable for the immense weight and long distances involved. Instead, trains are equipped with wheels made of special steel that operate with low friction on steel tracks. While these steel wheels do wear down over time, they are designed to last for millions of kilometers through regular maintenance and re-profiling processes.

Understanding the engineering of train wheels is crucial for appreciating the durability and maintenance required for large-scale transportation systems.