How does the upgraded Primer Track Bearing plate work?
First-When the primer slide (14281) is moving back into the primer housing/shield (20263) to pick up a primer, over half of the primer slide is sticking out, unsupported by the factory Dillon primer track bearing plate, the primer slide return spring (13928) is pulling the bottom of the primer slide causing it to tip, which allows debris to get under the primer slide, which causes binding.
Second- The primer slide is being pushed towards the primer housing on the right side by the operating rod (13869) to pick up a primer. This causes the primer slide to bind/rotate/twist in the channel of the primer housing/shield (20263). When It's fully retracted into the primer housing, is when it's mostly likely to bind up and get stuck.
The Primer Slide Bearing Track is made to counteract the two issues.
First-when the primer slide is sliding towards the primer housing, the bottom is supported by the extended plate, so the tipping is virtually eliminated which prevents debris from getting under the primer slide.
Second-the sideways pressure on the primer slide from the operating rod is now being supported by the sealed ball bearing for the entire travel of the primer bar. By the ball bearing aligning the primer slide, the primer slide moves back and forth in a straight line, the binding which causes stuck primer slides has nearly been eliminated.
This was tested extensively tested on two different Dillon 550B presses, small/large primers, with and without a case-feeder. During the testing, the priming system was only cleaned with compressed air.
Thousands have been sold in the United States and worldwide. Happy customers have reported thousands of rounds loaded without the need to disassemble the priming system for cleaning. Please look at the reviews if you have doubts. I recommend only lubricating with powdered graphite, it helps keep it slick and running smoother.
Included in the package: an Allen wrench, bearing, and detailed directions. If you have questions, concerns, comments feel free to contact me. My goal is to have 100% happy customers, so buy with confidence!
The design has been Copyrighted and a Patent Pending.
If you want to order an extra bearing, I have them listed separately as "Dillon 550B 550 Primer Track Bearing Replacement Bearing #231784848878"
Important domestic shipping information
Sometimes it will show "label created" but no tracking information will be updated for 3-5 days. Don't panic, I have packages that show no movement suddenly appear 5-7 business days later "out for delivery." Packages are always shipped within 24 hours. Give it 6-8 business days before you get worried. I watch all my shipments daily to make sure the make it or show movement.
Important international shipping information
If you buy multiple items, I will combine the shipping fees and refund any extra money.
International Buyers - Please Note:
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
Thank you for looking!
JW Systems