I found these small metal balls on the ground 😲 They are very hard, impossible to crush or melt 🤔 I had never seen anything like this before 😨 Then I found out online what they are, and honestly, I was shocked.
I’m telling you why these balls are used. The continuation is in the first comment 👇👇
At an abandoned truck parking lot, covered with fine gravel and rusty nuts, we found a strange pile of tiny metal balls.
At first glance, they looked like children’s bearings, but they were too perfectly smooth and even. Each sphere gleamed under the sun and seemed completely resistant to corrosion despite being outdoors.
We tried to crush them — no luck. We tried to melt them with a lighter — useless. The material was clearly very strong. Their shape and identical size made us wonder where they could have come from.
I asked a friend of mine who has been in the trucking business for many years. He immediately recognized the balls and explained:
— These are balancing balls, — he said. — They fill tires with them to balance the wheel while driving.
Instead of putting weights on a balancing machine, drivers simply pour these balls inside. When the tire spins, the balls find the right spot themselves to balance the rotation. Cheaper and faster — especially for heavy trucks.
Later, I researched this a bit. It turns out such balls are indeed used in truck and off-road tires.
They are made from hardened steel to withstand high temperature and pressure inside the wheel, without breaking or losing shape.
Sometimes they are even made with anti-corrosion coating or from composite materials to reduce weight, but steel ones are more common — they are the strongest and most durable.
When the truck accelerates, these balancing balls evenly distribute inside the tire and automatically compensate for any imbalances — because the wheel can lose balance if the tread wears out or the load changes.
Thus, the tire “adjusts” to any driving conditions.
