How are ball bearings manufactured?
thanks so much… verrrrry interesting!
HowStuffWorks has this answer.
(I liked that stone ball machine)
I wondered about ball bearings too. Thanks.
This is related.
How ‘Shot’ was made. I’m not sure if they are talking about shotgun shot, or ‘balls’ for muskets.
Shotgun shot is made in towers. There is some overlap as the largest shotgun shot is as big as smaller muzzle loading pistol calibers but large shot for “front stuffers” is either cast in molds or preferably swaged to shape.
There’s a shot tower still standing inside Melbourne Central Shopping Centre. Yes, they appear to have built the Shopping Centre around it, so as to keep a Historical Building standing.