13mm chuck too small. Options?

cranford

Well its a wet Sunday so I have found one of these 16mm chucks for you maybe it will fit into your 13mm chuck.
http://www.yandles.co.uk/charnwood-drill-chuck-16mm-capacity-mt2-taper-dc16mt2/p3527

or a bit cheaper with £2.95 del to be added on from
https://www.toolite.org.uk/charnwood-dc16mt2-drill-chuck-16mm-capacity-p-57026.html

FreeBear

cranford wrote: »

Well its a wet Sunday so I have found one of these 16mm chucks for you maybe it will fit into your 13mm chuck.
http://www.yandles.co.uk/charnwood-drill-chuck-16mm-capacity-mt2-taper-dc16mt2/p3527

Most electric hand drills are either SDS mount or threaded 1/2" or 3/8" UNF.
Yes, there are 16mm and even 20mm drill chucks available, but the ones I'm looking at have a 5/8" thread - https://www.chronos.ltd.uk/acatalog/Drill_Chucks_Keyed_Type_Threaded_Mount.html

The ones linked to by cranford are a Morse Taper shank - Great if you have a pillar drill or lathe, not so good for a hand drill.

cranford

I am not suggesting replacing the 13mm chuck in the drill but gripping the 16mm chuck in the 13mm chuck.

lauriewsmith

Thanks for all the good suggestions. I eventually used a long 8mm socket that had an outer diameter of 12mm that fit snugly into the 15mm tube and the drill chuck could just grip it. Bit of pvc tape to make them spin together and voilà! I filled down the end while spinning it but it took a long time and a lot of filing before it would go in the bearing. It's stainless steel seamless 15mm od tube and the bearing has a id of 15mm so expected it to just fit in. I've quite a few more to do so thinking of getting a m12 rod, pushing it through the middle of the tube and tightening nuts with washers on either end to work as a press to press the bearing in to the ends. Thanks for all of your suggestions !!!55357;!!!56898;

FreeBear

cranford wrote: »

I am not suggesting replacing the 13mm chuck in the drill but gripping the 16mm chuck in the 13mm chuck.

You can not physically nor safely grip a Morse Taper in a chuck, any chuck. However, it is possible to get a parallel shank for a drill chuck, but these are usually 16mm, 20mm, or bigger (mainly used in turret lathes).

lauriewsmith wrote: »

I've quite a few more to do so thinking of getting a m12 rod, pushing it through the middle of the tube and tightening nuts with washers on either end to work as a press to press the bearing in to the ends. Thanks for all of your suggestions

Be careful when pressing bearings on like this - If the shaft is too large in diameter, you run the risk of distorting the inner race of the bearing - Not too much of an issue for low speed & intermittent operation, but of concern if you want them to last.

Jackmydad

Agree with Freebear above. A lot of bigger chucks I have seen have a "Jacob's taper" female recess to take the required arbor. Not all, but it's usually obvious on inspection. You can obtain parallel or MT arbors to fit them.
(That's if you can break the Jacob's Taper! I've got a 3/4" Jacobs chuck of that type and I can't shift it!)

When fitting the bearings, use a socket as a press tool to press on the outer track of the bearing only. Much safer.