Making a spindle

[sean logieParticipant @seanlogie69385]

I’m looking for some ideas on how to make myself a spindle . I’m planning to try and make a simple vertical for the the Centec 2 . I have a couple of taper roller bearing that would work nicely ,the spindle would have a mt2 taper so I can use the tooling I have already ,probably not the best but it’s what I have . I need to keep everything as compact as possible.I’m planning a tread mill motor for the drive along with a speed controller of some sort.

Any ideas?

Sean

Edited By sean logie on 13/09/2017 09:39:29

[sean logieParticipant @seanlogie69385]

[John HaineParticipant @johnhaine32865]

There's a book by Harprit Sandhu no. 27 in the workshop practice series all about spindles and Chapter 13 describes exactly what you want.

[Ian S CParticipant @iansc]

If you are lucky you might get the speed control from the tread mill.

Ian S C

[sean logieParticipant @seanlogie69385]

That’s what I’m hoping for Ian

Sean

[Roderick JenkinsParticipant @roderickjenkins93242]

Again, from my Sharp mill, this is the vertical spindle dis-assembled:

Very simple but robust. The thread on the nose is Myford 1 1/8" x 12. Not relevant to you I should imagine. The bulk of the shaft is 1" OD, slightly relieved in the middle. The bearings are 1" id and are a sliding fit on the spindle, the 2" OD bearing shells are a press fit in the cast iron head. The shaft is retained by the collar which can just be seen on the left, this has a fine-ish thread and is split but can be tightened with a socket screw to close up the split. The thread on the shaft is hidden in the picture by the right hand bearing. The spindle is bored through and has a No.2 Morse taper. The spindle is not hardened, consequently, taper tooling can become very tight and require significant bashing to release (hence the dis-assembly and bearing change). I would advise incorporating some sort of alternative release mechanism if going down the Morse taper route.

HTH,

Rod

[sean logieParticipant @seanlogie69385]

Would a tread mill motor have enough torque for milling .

Sean

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