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Milling machine choices ......

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Garyrmck:
Hi,

I am waiting on the arrival at a supplier of a Sieg SX2P mill. I have a choice of an MT3 or an R8 spindle.

I had initially thought of getting the R8, but I believe it is possible to upgrade the bearings on the MT3 model but potentially not on the R8 version? Is this an issue regarding choice?

Is there any great advantage of one spindle over the other?

To complicate matters further, another supplier has started stocking the Optimum rage of mills very recently.

The BF16 is similar to the the SX2P in size, would this be a better choice?

I'd love to go up to the BF20, but I couldn't move it due to the weight, and I've seen lots of posts regarding motors dying in them...

Should I consider the Optimum mills? Or just stick with my original choice?

cheers
Gary

Jonfb64:
Hi Gary,

I would go with R8  ask anybody who has beaten a Mt3 collet to death to release. I believe there are plenty of threads to this on this site. I have the R8  sieg mill and am happy with its performance for the price.

Jon

vtsteam:
Yup R-8 vs MT in mills has had a long airing of views in other threads. You can find those threads and get the arguments fresher than they would be if repeated here!  :)

Though the question of whether the bearings can or cannot be renewed for each on your mill of choice is a good new twist, and deserves an answer!

And brand vs brand is less debated, could be interesting...... :coffee:

Will_D:
According to ARC spares for the super X2P:

http://www.arceurotrade.co.uk/Catalogue/Machine-Spares/Super-X2-Plus-Spares

This implies they MAY have angular contact bearings available.

Why I say MAY is that reading the various texts nits not 100% certain. I would suggest a phone call - they are a very good firm to deal with

Arbalist:
That's quite interesting about the Angular contact bearings. I'll have to remember this if ever have to replace the bearings on my VMC.

Some of the smaller milling machines have self ejecting draw bars on their Morse Taper machines so no hammer required  :hammer: Check out the Warco range of mills.

Unlike R8, Morse Tapers are self locking so only need "nipping" up. If you don't over tighten them they only need a sharp tap to eject them.

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