Wanna do some engineering?
Could use some input. This is a headplate for a rotating piston compressor. The two small holes are where i plan on putting bearings and a lip seal. I will press them in, but i'd like to have a way of pulling them out again if i need to replace, but i'm afraid a traditional bearing puller would fuck up the soft aluminum of the headplate.
I was thinking of putting punch out holes in the bearing race, but that would compromise my seal.
>rotating piston compressor
A what now?
>i'm afraid a traditional bearing puller would fuck up the soft aluminum of the headplate.
I'm not even sure how you'd get a traditional bearing puller around those.
Gonna have to 'splain things a bit better before I can help you, OP.
>A what now?
a roots blower (kinda)
>I'm not even sure how you'd get a traditional bearing puller around those.
they have bearing pullers that grab from the ID of the bearing.
simple, press the bearings in, only sell the whole thing as an "assembly" and charge quintuple since youre the only fucker that makes it.
Hmm, can you make a threaded piece that goes in that the bearings sit in? that way you just use an imoact wrench to remove them and replace some extra gaskets? Sorry Im not an engineer, just a greasy technician who likes reading about science.
What do you think of press-fitting the bearings to the rotors instead and using a non-interference fit on the headplate? Seems like it'd be less trouble.
In fact, why do the bearings have to be press-fit at all?
the bearings have to be external from the rotor chamber for lubrication, and the only way i could think of not press fitting them is to create a separate bearing race, which is increasing my part count.
that ring can't be there. the rotors are going to be as flush as possible up against the headplate. having a indentation for a ring creates air gaps that lower the pump efficiency by a shitload.
>the bearings have to be external from the rotor chamber for lubrication
OOOOOH, I didn't realize that. I had assumed they were internal.
Well, in that case why not just space the bearing a few mm away from the face with a little step, so that your bearing puller has enough clearance to grab hold?
You realize pistons use ring seals, right?
>so that your bearing puller
thats the thing, i don't want to have to use a typical bearing puller because it might damage the headplate.
>You realize pistons use ring seals, right?
and i don't have the luxury of using them, so any clearance deviation fucks my output pressure.