Shars ER40 chuck on a PM1340GT

[Alan H.]

My friend Mark Jacobs (@mksj) gave us a heads-up on the new Shars ER40 collet chuck a couple of months ago in this thread.

I bought the chuck and adapter plate from Shars and installed it on my PM1340GT. I thought I would share some detail via photos, video, and PDF here for others who may want a setup for their lathe.

Shars SKU numbers:

The chuck out of the box -

A few chatter marks at the end of the threads. Yes this bothers us perfectionists and I will likely skin those off there soon.

Nice ground finish for Chinesium!

Adapter shipped in used motor oil??

The backing plate/adapter and the chuck.

The adapter machined and ready for the chuck -

Adapter skinned out, chuck installed, and ready to be Trued-up.

Trued up and ready for next steps

I have also attached a PDF delineating some detail on machining the adapter plate.

Hope this helps others considering this purchase and adaptation to your your equipment.

 

[mksj]

Nicely done Alan, came out surprisingly accurate and simple solution to the TIR error commonly seen in the non-adjustable ER chucks.

 

[ttabbal]

I put one on my PM1127 and have been very happy with it. Easy to adjust, accurate, repeatable. I'm glad to hear I didn't just get the one decent one they had.