What's the difference between ball bearings and roller bearings?
Ball bearings are point contact, so small friction can be high speed, but because the contact point is small, so it can not withstand heavy load.Roller bearings are line contact, so the friction is large, the speed of the ball is not high, but because of the large contact area, you can also withstand heavy load.
Ball bearings are point contact, so small friction can be high speed, but because the contact point is small, so it can not withstand heavy load.Roller bearings are line contact, so the friction is large, the speed of the ball is not high, but because of the large contact area, you can also withstand heavy load.
The working principle of the bearing is friction rolling motion. The roller of the ball bearing is spherical, and the roller of the roller bearing is cylindrical. The speed of the ball bearing is higher than that of the roller bearing, but the load of the ball bearing doesn't have the load of the roller bearing,
