GratefulDread
Well-Known Member
I'm super tempted... Would love to never use aluminum grinders again.
Edit: Not to disparage any other grinders; I've just been longing for the right SS one and this appears to be it.
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OLD MATE (formerly Medgrind)
- Thread starter Timps27
- Start date
Edit: Not to disparage any other grinders; I've just been longing for the right SS one and this appears to be it.
My BCG will make a great spare/separate strain unit. The aluminium may come in handy for back-pack camping to save weight!
Edit, save weight for some users.
vapviking
Old & In the Way
OLD MATE DESIGNS
Australian-made premium Stainless Steel herb grinders, creators of the CNC machined Old Mate AROMA series Ball Bearing Grinder
Is there any chance that after a while of use the ball bearing will jam or that it should be changed after a while?
Is it possible to soak it in iso without affecting the ball bearing?
Is the standard colorful one better or the NTN bearing? Will the ball bearing be user replaceable in case and therefore sold separately?
Is it possible to upload some pics about the grinder in the Old Mate Designs' website? Thank you!
Is it possible to soak it in iso without affecting the ball bearing?
Is the standard colorful one better or the NTN bearing? Will the ball bearing be user replaceable in case and therefore sold separately?
Is it possible to upload some pics about the grinder in the Old Mate Designs' website? Thank you!
666Honeybadger
Unknown member
I doubt it.
They are also used in skateboard wheels so spinning a grinder should be easy enough for them i reckon...
The ball bearing can be popped out so is replaceable and possible to take out before soaking
Not sure if they will be sold separate tho..
I think he's still in the process of making/finalising them so might be bit early days.
You can get a look at the parts in the video that was uploaded in this thread.
Yes.
GratefulDread
Well-Known Member
Regarding bearing choices, I personally prefer the non-heat treated look. Is it just the NTN (red) bearing that has plain metal? Or is the black one plain as well? Can't wait to get one of these.
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Abele Rizieri Ferrari
Well-Known Member
I don't think I noticed the difference you mention, but if the colored ones don't have it the black won't have it either as those are all Better Bearings lickety splits.
they all appear to have that heat treated look, you can see it easier on the product page for better bearings. https://betterbearings.us/collections/skateboard-bearings/products/lickety-splits-8pk
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GratefulDread
Well-Known Member
Yeah I know the Better Bearings all have it. AFAIK it's just the red NTN bearing option that has the plain metal.
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Gotchu now, the red ntn is the only ntn bearing so the black should also be a better bearing meaning the black one would have the colored heat treated look. Just linked the black better bearing to show it easier. I think ntn only has red as they dont really care about color for industrial use
GratefulDread
Well-Known Member
All good, thanks! Not worried of course, since they're user replaceable.
I'll probably just go with a heat treated one since they spin better.
Edit: Not actually sure how easy they are to replace.
I'll probably just go with a heat treated one since they spin better.
Edit: Not actually sure how easy they are to replace.
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As long as you have access to a bearing puller and a press?
I went NTN for longevity over looks.
This should be the bearing (i think) if you wanted to order a spare ntn, I was looking which to order as well. Cheap but shipping from china so who knows how long it will take
NTN 608LLU Deep Groove Ball Bearing 8x22x7mm | eBay
Find many great new & used options and get the best deals for NTN 608LLU Deep Groove Ball Bearing 8x22x7mm at the best online prices at eBay! Free shipping for many products!
www.ebay.com
Same here, hoping you can just push it out from the other side.
GratefulDread
Well-Known Member
I was under the impression that you wouldn't need a bearing puller or press but If I'm wrong then I'll probably go NTN as well.
It helps with the grind ease/speed as the bearing takes a lot of the load and is part of the no metal on metal contact - and makes for a great fidget spinner as well
It could be pushed out from underneath without a bearing puller/press
You are correct that it shouldn't need a puller afaik and can be pushed out from the bottom using an appropriate sized tool/bolt etc
I believe at some stage Ben is considering making a tool for people to use to change bearings
The bearings should last with no maintenance for approx 5000 pounds of weed according to specs posted on the OMD discord channel
GratefulDread
Well-Known Member
I would hope so, anyway. Bearings do wear out.
Edit: dam, 5000 lb's is a lot though lol
Edit: dam, 5000 lb's is a lot though lol
Should be good for a couple years then!
I would worry about my wrists wearing out before the bearing does. I have 30 year old bearings smaller than these on router bits that rotate at 30,000 rpm, and these take a much larger load than you will be able to create with your 2 hands and some sticky weed. The bearings seem to be a much over thought option that simply doesn’t need this level of anguish. Pick a color or if you think you have super human strength, go with the NTN.
Photonic
Lesser-Known Lurker
This. 
vapviking
Old & In the Way
No, but he did say that from here on Kevin will not stop!
Barring the unforeseen I would put money on a lot shipping sometime this month?
Abele Rizieri Ferrari
Well-Known Member
The product page says they'll ship late January