550 Primer Track Bearing
550 Primer Track Bearing
OEM Primer Track Bearing - Showing Worn EdgePrimer Track Bearing on Press - View from Beneath Primer Bar
Click to enlarge image(s)
Temporarily Out of Stock
ROBAR closed their doors on August 30th so we are searching for an alternative source for the Nickel/Teflon plating. I you have any suggestions, please let us know!
Since the lead time is uncertain, backorders are not being accepted at this time.

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.

Now Featuring ROBAR® NP3® Plating
Our Primer Track Bearing now features ROBAR® NP3® Plating. NP3® is an electroless nickel-based finish that co-deposits sub-micron particles of PTFE (TEFLON™). This yields a high lubricity and low coefficient of friction. This makes it the slickest primer track bearing there is!

Laser Cut from Mild Steel
1.4″ Longer than OEM Bearing
ROBAR® NP3® Plated - NEW!
Simple Drop-in Installation

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. Fits all 550 press models including the new 550C.
Will NOT fit the primer system of the new XL 750 press.

Customer Feedback
"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)

ROBAR and NP3 are registered trademarks of ROBAR Companies, Inc.
Made in USA Logo

Customer Reviews

Average rating from 4 reviews: 5.0 Showing: 3 of 4 Show All
If You Have a 550, you need this enhancement.I have multiple 550s. Was skeptical that this would be worthwhile, so ordered one to try it out, on the advice of my brother-in-law. Now have one one each of my 550s. Written by Carl C Ibsen on Mon 12 Nov 2018 11:01:46 PM GMT
Should be a factory itemI reload a lot and this has been an awesome upgrade. Over 10 thousand cycles and it still looks brand new and my biggest issue, primers is no longer and issue. Written by Dave Riley on Fri 10 Nov 2017 7:08:06 PM GMT
What a relief for primer woesThe 550 primer track bearing was more than worth the money, the primer system runs much, much smoother now, it has been on my machine for 6-8 months now with no primer feed problems at all. Thank you very much!!!!! Written by Cal Smith on Tue 3 Oct 2017 12:53:10 AM GMT
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