The principle of wrist ball

Wrist ball is the abbreviation of wrist fitness ball. Wrist ball consists of three parts: inner ball core, outer ball shell and surrounding rubber ring.

The working principle is to use the gyroscope and the principle of conservation of angular momentum. Under the action of the law of inertia and angular momentum, it continues to rotate and generates powerful force, so that the wrist and arm are in a state of autonomous movement. The powerful force generated by the high-speed rotation of the wrist ball is very helpful in exercising the strength and toughness of our fingers, wrists, and arms. It integrates sports, entertainment, and fitness, and is increasingly favored and loved by people all over the world.

The wrist ball is an artificial power device. It is purely mechanical and does not require batteries or any power supply. It has no electromagnetic radiation. It relies on the rotation of the wrist to drive the ball core to rotate at high speed, thereby generating powerful force. Through human control, the rhythm and speed of the core rotation can be adjusted arbitrarily. The faster the speed, the greater the force generated, which can be equivalent to 50 different weights of dumbbells. At 8000 rpm, there is about 14kg of force, and at 10000 rpm, there is about 22kg. strength. The world record has exceeded 20,000 rpm.