💨Spinning brass wheel reaches incredible speeds, causing ceramic bearings to fail.
🔥Fuel pump from a fighter jet reveals its inner workings when cut open.
🔩Bushings offer a potential solution for achieving even higher speeds.
⏱️Measuring pitch changes allows for approximating the wheel's speed.
🧪Comparing bushings to ceramic bearings reveals their advantages and limitations.
What causes ceramic bearings to fail when the wheel spins at high speeds?
—The extreme rotational forces generate friction and heat, causing the ceramic bearings to break down and ultimately fail.
Why was the fuel pump cut open?
—The fuel pump from a fighter jet was cut open to explore its internal structure and gain insight into its functionality.
What are bushings and how do they differ from bearings?
—Bushings are cylindrical metal sleeves that reduce friction between two moving parts, offering an alternative to traditional ball bearings.
How was the wheel's speed measured?
—The wheel's speed was approximated by comparing the pitch changes at different stages of spinning, allowing an estimation of its rotational speed.
Which is better: ceramic bearings or bushings?
—Ceramic bearings are ideal for certain applications but may fail at extremely high speeds. Bushings offer a potential solution as they can handle higher speeds with less risk of failure.
00:02Introduction to the spinning brass wheel and the question of its speed.
00:26Fabrication process of the brass wheel using a lathe and metal cutting bandsaw.
01:06Assembly of the wheel and creation of a stand for stability.
01:57Exploration of ceramic bearings and their limitations at high speeds.
03:02Deconstruction of a fuel pump from a fighter jet to understand its inner workings.
05:42Testing the wheel's speed and witnessing the explosive failure of ceramic bearings.
09:29Creation and testing of custom bushings for potential higher speeds.
11:22Comparison of pitch changes to estimate the wheel's speed.
