Скачать или смотреть How Giant Steel Bearings Are Made | 30-Ton Precision Machined to a Human Hair

Every year, millions of tons of steel bearings are manufactured worldwide, but only a handful reach 30 tons in weight—equivalent to 10 elephants compressed into a single ring—while maintaining precision thinner than a human hair. We'll show you the complete manufacturing process of giant bearings for tunnel boring machines and wind turbines, from forging 2000-degree steel under thousands of tons of pressure to grinding with micron-level accuracy. You'll discover what happens when red-hot metal gets "shocked" in oil at 1600 degrees, why without tempering this 30-ton beast shatters like glass, and how engineers achieve Swiss watch precision in a part the size of a house that costs up to 3 million dollars.

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