1.2—Rolling Elements
Rolling elements refer to the components sandwiched between the bearing rings in rolling bearings.
As the type of rolling element used significantly influences a bearing’s characteristics, most bearing names include the name of the rolling element.
Here, we’ll introduce some common types of ball and roller bearings.

(Deep groove)
Ball bearing

Cylindrical roller bearing

Needle roller bearing
(Needle bearing)

Spherical roller bearing
(Self-aligning roller bearing)

Tapered roller bearing
(Tapered bearing)