seagiant
05-24-2011, 09:22 PM
Hi,
I bought an old DL-300 shotshell reloader from E-bay and when it arrived there were a few small surprises! One of them was the charge bar. It has a wheel or bearing in a slot in the back of the bar that rides on a upright cam that makes the bar slide in and out dropping powder and shot automaticly as the shellholder rides up and down. The old wheel for the bar was actually a ball bearing and was so old that the outer race had cracked! I thought a wheel of sorts with a outer steel part to ride against the steel cam and then a bronze part to ride on the axle would work better. No real heavy torque or speed involved so thats what I did. I was originally going to make the powder part of the bar take MEC bushings but decided to just drill the hole to drop the load that I use for everything with Clays powder.
As you can see in the pics I decided to use some bronze 1 1/4" sq. bar that I had. The original bar was aluminum or some type of very light metal. I cut the bar then milled so I had a tighter fit than the original but still with enough room to work correctly. Next I milled the slot that the cam rides in and the where the wheel goes. Then I made the steel wheel with the bronze insert for a press fit. Although I have a 30T press for this I hit the numbers right and all I used for the press fit was a BFH and it was good to go! Oh yea you can see the drilling of the shot and powder holes. I ran out of room for the final pics so I will do another post!
I bought an old DL-300 shotshell reloader from E-bay and when it arrived there were a few small surprises! One of them was the charge bar. It has a wheel or bearing in a slot in the back of the bar that rides on a upright cam that makes the bar slide in and out dropping powder and shot automaticly as the shellholder rides up and down. The old wheel for the bar was actually a ball bearing and was so old that the outer race had cracked! I thought a wheel of sorts with a outer steel part to ride against the steel cam and then a bronze part to ride on the axle would work better. No real heavy torque or speed involved so thats what I did. I was originally going to make the powder part of the bar take MEC bushings but decided to just drill the hole to drop the load that I use for everything with Clays powder.
As you can see in the pics I decided to use some bronze 1 1/4" sq. bar that I had. The original bar was aluminum or some type of very light metal. I cut the bar then milled so I had a tighter fit than the original but still with enough room to work correctly. Next I milled the slot that the cam rides in and the where the wheel goes. Then I made the steel wheel with the bronze insert for a press fit. Although I have a 30T press for this I hit the numbers right and all I used for the press fit was a BFH and it was good to go! Oh yea you can see the drilling of the shot and powder holes. I ran out of room for the final pics so I will do another post!