TY! Learned a few things. One thought though (for future viewers, since this isn't a recent video), I wouod think you'd want to the inner sleeve to be just slightly longer than the finished, pressed bushings, instead of underflush like it appears it ended up. The way it is now, when the center bolt torques down the chassis mounting ears to the sleeve, it'll actually bottom out to the bushings first instead, creating binding. If the sleeve is even a few thousands wider, the mounting ears can clamp down on sleeve, yet bushings have room to rotate with arm (and sleeve to bushing is the pivot point). But not so much room between bushing and ears that there is any significant side to side motion. I'd machine them like you did, then sand outer face of bushings to achieve this slight overflush of sleeve (press sleeve underflush, sand, press back to center. Repeat for opposite face. Achieve a few thou clearance on each side).
About eight years ago I had a machinist make me some Delran bushing for a Heits front end and still in the car today. Something to keep in mind when making these make sure to measure each end as the sizes will vary.
FYI, the outer soft bushing weather its delrin, PU or rubber should not extend past the inner metal bushing. The inner metal bushing needs to be able to be clamped in the frame via the bolt and should move inside the soft bushing. Note the bolt must be able to tighten down on the inner metal bushing so that the inner bushing does not rotate on the bolt. Also for longer life of your soft bushings they need to have a gap between them to hold grease and it is recommended that they be fluted. If they are also to tight, they will wear out. If the metal bushing is not able to be clamped on the frame brackets and the soft bushings are to large, then the bolt will move and damage the frame. Not to mention a huge safety hazard.
I did mine too but I drill the inside diameter while it was on the lathe and then cut it to the size came out good 👍🏼 .
TY! Learned a few things.
One thought though (for future viewers, since this isn't a recent video), I wouod think you'd want to the inner sleeve to be just slightly longer than the finished, pressed bushings, instead of underflush like it appears it ended up.
The way it is now, when the center bolt torques down the chassis mounting ears to the sleeve, it'll actually bottom out to the bushings first instead, creating binding.
If the sleeve is even a few thousands wider, the mounting ears can clamp down on sleeve, yet bushings have room to rotate with arm (and sleeve to bushing is the pivot point).
But not so much room between bushing and ears that there is any significant side to side motion.
I'd machine them like you did, then sand outer face of bushings to achieve this slight overflush of sleeve (press sleeve underflush, sand, press back to center. Repeat for opposite face. Achieve a few thou clearance on each side).
About eight years ago I had a machinist make me some Delran bushing for a Heits front end and still in the car today. Something to keep in mind when making these make sure to measure each end as the sizes will vary.
FYI, the outer soft bushing weather its delrin, PU or rubber should not extend past the inner metal bushing. The inner metal bushing needs to be able to be clamped in the frame via the bolt and should move inside the soft bushing. Note the bolt must be able to tighten down on the inner metal bushing so that the inner bushing does not rotate on the bolt. Also for longer life of your soft bushings they need to have a gap between them to hold grease and it is recommended that they be fluted. If they are also to tight, they will wear out. If the metal bushing is not able to be clamped on the frame brackets and the soft bushings are to large, then the bolt will move and damage the frame. Not to mention a huge safety hazard.
It last longer than rubbers right? maby over 3 years with no cracks
Delrin is very durable so it will last for many years more than likely.
how did you drill the 13/16 hole to get it centered ?
Just chucked them up in the lathe and drills them.
Thanks
What’s the cost of that delrin rod you used?
Delrin is cheaper than steel.
i bought delrin in 2021 and paid 18 dollars a foot 63 bucks for a 3 foot length in canada.
super duper fantastic job sir . great thanks to learn something more from you . is that for automotive uses sir?
Yes, that was for a 4 link suspension for a drag car.
Heel goeie video , leer rijk, en netjes