So that they cannot be injured by waste oil from the ball bearing, or by water or snow.
The man spun around as if mounted on a ball bearing and pulled by strings.
The same principle has been applied to mechanics in the ball bearing.
The work, which is the cone for a ball bearing, is shown at a by the dotted lines and also by the detail view to the right.
When you get into the movement of a ball bearing disk, your body is free to move.
A pilot box-tool for finishing another type of ball bearing cone is shown at B.
It is a board that is on a pivot, a ball bearing, and it has a tendency to give you certain exercises in twisting your body.
Oil the sweeper regularly about once a month by putting one drop of oil on the ball bearing on the hub of each wheel.
|ball bearing |