NX12Z Needle Roller / Full Comp Thrust Ball Bearing - Closure Ring 12x21x18mmNX12Z Needle Roller Full Comp Thrust Ball Bearing NX12Z Needle Roller Full Comp Thrust Ball Bearing with Closure Ring 12x21x18mm NX12Z Needle Roller Full Comp Thrust Ball Bearing With Closure Ring 12mm x 21mm x 18mm VXB Bearing NX12Z combined Needle roller bearings with a thrust bearing. They can accommodate both radial and axial loads. They are particularly suitable for applications where other types of locating bearing arrangements occupy too much