Live Tailstock MT3 to spindle nose adapter

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CNC Expert
CNC Expert
Posts: 237
Joined: Sat 19 Aug , 2006 11:31 am
Hardware/Software: Viceroy TDS 1/1GB lathe, Imperial, stripped down and rebuilt.
Viceroy Taper/Tracer attachment, Shop made cross slide tracer attachment, VSD.
Location: New Zealand

Live Tailstock MT3 to spindle nose adapter

Post by dazz » Thu 30 Jan , 2014 9:41 am


Just something I have made with my lathe.

At one end is a No.3 Morse Taper that fits into the tailstock.
At the other end is the same thread used on the headstock spindle.
In the middle are two Timken taper roller bearings.

The bearings are protected by seals to prevent any contamination getting in.

With this adapter I can mount 3/4 jaw or ER32 collet chucks on the tailstock to hold pipes, centreless bar or odd shaped work.

I found I was able to get within 0.0002 inch of target diameters. Such accuracy was necessary to get proper bearing fits.
finished adapter 3.jpg
The components that make up the adapter excluding the bearings.
finished adapter 3.jpg (33.34 KiB) Viewed 4312 times
finished adapter 2.jpg
The black band in the centre is a lip seal protected from damage by a small flange.
finished adapter 2.jpg (28.69 KiB) Viewed 4312 times
finished adapter 1.jpg
The completed live MT3 spindle adapter
finished adapter 1.jpg (29.35 KiB) Viewed 4312 times


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