The UniqueTek 550 Primer Track Bearing has a 1.4″ extension that supports the primer bar better. This extended support prevents the primer bar from "drooping" and binding while its in the "out" position. The top surface of the bearing has also been coated with a Molybdenum Disulfide dry-film lubricant to further enhance smooth motion of the primer bar.
The photo at right shows the UniqueTek 550 Primer Track Bearing (left) compared to the original Dillon part (right).
The UniqueTek 550 Primer Track Bearing is a drop-in replacement for the original Dillon Primer Track Bearing (part #14015) and takes just minutes to install.
Features • Laser Cut from Mild Steel • Front Edge is Radiused to Prevent Wearing of Primer Bar • Top Surface Lapped Smooth with 400 Grit Cloth • Top Surface Coated with a Molybdenum Disulfide Dry-Film Lubricant