NAXK20Z Combined Needle Roller With Thrust Ball Bearing 20x30x30mm Ball Diameter - 18 inch (18") or any application that uses

or any application that uses this size 3mm

The Nylon material has low friction and less weight

the 6307-2NSENRC3/P01XM inner diameter is 35mm

SR188-2RS ABEC-7 Ceramic Ball Bearing - High Precision

the 6228 inner diameter is 140mm

NAXK20Z Combined Needle Roller With Thrust Ball Bearing 20x30x30mm Ball Diameter - 18 inch (18") or any application that usesNAXK20Z Combined Needle Roller With Thrust Ball Bearing 20mm x 30mm x 30mm VXB Bearing NAXK20Z 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 space, or where the axial loads are too heavy, the speeds are too high, or the lubricant is inadequate for arrangements with simple thrust