Premium Shellplate Bearing Kit Dillon RL 550 B replaces the index sprocket with a modified sprocket that has the room required to install the shellplate bearing kit.  Run out is eliminated and this results in more consistent ammo. The bearing kit smoothest the action of the press, reducing powder spillage and increasing tactile feel while priming. Our tough as nails phenolic low mass detent ball is included. Priming operation will be more consistent. Thumbscrews replace bolts to speed up the adjustment of the press. Thumbscrews for 3 powder measures and 3 powder measure adjustment knobs. This kit works with both new and old style powder measures.

Please Note: Dillon recently changed the primer alarm screw to a phillips head sheet metal type screw. if you have this new style primer alarm the thumb screw we provide will not fit and it may be discarded

No re-adjustment of dies is needed with any of these kits!

**Instructions are provided, but see Hit Factor website for fitting older models, and for specific help questions**