550 Primer Track Bearing
550 Primer Track Bearing
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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.

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

Customer Feedback
"Lee, I bought the 550 Primer Track Bearing and it works great. Since I installed it, primer insertion is much easier, with no crushed primers." — Robert S. - Renton, WA (4/7/16)

"In my estimation, the primer system causes the most problems on the 550. I loaded 300 today and the primer bar did not jam one time! I believe you have made an improvement. Before long, I'm going to have more invested in your improvements than the original press." — Harvey S. - Santan Valley, AZ (12/22/15)

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Customer Reviews

Average rating from 1 reviews: 5.0
Simple and perfect upgradeThe Achilles heel of the RL550 is the primer system. Lee has developed and is selling two enhancements that bring this system up to the level of perfection for the rest of the press. The 550 Primer track bearing and the Spent Primer Chute could not be two finer products. Both are easy to install and make loading that much more of an enjoyable hobby. Written by Les S.- St. Louis on Sun 23 Oct 2016 10:44:16 PM GMT
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