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Yes car turbos have bushes.... And you can buy upgraded ones with bearings in... I work with bearings and bushes every day at work and my personal preference is bearings in this application. I've built quite a few spinners with bearings now and been happy with the results.
...you can if you wanted to...ceramic ones, less drag more speed...but what I'd be worried about is the impact loading on those bearings, every time you hit something with that spinner you transmit the impact to the bearings, and I have my doubts as to how long those type of bearings will last.Quote:
Originally Posted by Mouldy
But then I dont have a spinner like you do, so if it worked fine for you it should be fine for the rest...all I wanted to say, having as well worked "with bearings and bushes every day at work" is that plain bushes should work just as fine without fear of breaking anything ;)
As I said... Personal preference. Although for people that don't have access to a mill etc it's probably going to be easier to mount a flange mount type bearing to a robot built in a shed then it would be to bore a hole accurately enough to take a bush without it falling out/being to tight.
Irony.... After that conversation the bush has worn out in the turbo in my car :(
That's why I'm not a fan of em in robots. Lose your lubrication system and it's. Bearings will take a hell of a beating and be near falling to bits and still work
can someone explain why I got a warning for bad language on the above post??!!
I'm sorry about that....maybe it's now the time for an upgrade!Quote:
Originally Posted by Mouldy
do 5 series bmw's have ballbearing turbos? lol
Fantastic, thanks so much for the help everyone! I've redesigned around it, I've got a 20mm rod for the shaft on the way, and I'm looking into some much thicker bulkheads now, going to see if I can get something working with a bit of steel (a bit like how Last Rites' looks, with the frame) but again, it's just seeing if I can get the parts that'd work with that!
Just a matter of engineering this bar a bit better now, It's still mild steel for now (I've got plenty of it to hand for ridiculously cheap prices, somehow...) but I'm definitely going to upgrade it to something better when I get the chance! Been having a look at a few bearings, and I should be able to get things all done under budget (going for less than £200 overall, currently on track to spent about £180) if everything goes to plan, so that's all a good sign!
Also, those bevel gears from the picture of Buzzbar's spinner - are there any like that available to buy anywhere, or have they been machined specifically? I was having a look at a few bevel gears for the system, instead of a chain drive (more reliability than a bike chain!) but they're all either really small or not quite suitable for the application...
Thanks again, it's a huge help! :)
Angle grinder gears have been used by some spinners, if that's any use.