NSK single-row deep groove ball bearings are the most common type of rolling bearings. These shielded (2Z or ZZ) bearings are fitted with two metal dust shields to prevent ingress of dirt and foreign matter. Available in a variety of metric sizes and found in a wide range of applications in many industries.
Accepts radial and axial loads High speed operation
Primarily intended for applications where the bearing inner ring rotates
If the outer ring rotates there is a danger that grease may be lost from the bearing at high speeds