spindle adapter M33 x 3.5mm to 1" 10tpi

[Bill21]

SC3 chucks most commonly seem to be sold as direct threaded versions in M33x3.5, 1”x8 and 3/4”x16. BUT, there is mention of an insert type in the Record Power manual. It is rather strange that Record Power didn’t mention this version when the OP asked. It may be the insert version has now been discontinued but it’s well worth checking that the chuck in question has an insert or not. If it does, then as said, it’s simply a matter of buying a new insert.

A picture of the back of the chuck would be useful. 

Edit: did the chuck come with an insert spanner like the SC4?

[Woodcrafts]

Record Power current range of chucks as stated on their website.

https://www.recordpower.co.uk/category/chucking-systems-jaws--spares

SC1 - insert type 2" mini-chuck, with a wide range of inserts available.
SC2 - direct threaded 2.5"mini-chuck, with 3 thread options. M33x3.5, 1"x8 and 1.25"x 8
https://www.recordpower.co.uk/assets/products/product_manuals/prod_001140_manual_1622126857.pdf

SC3 -  direct threaded 2.5"mini-chuck, with 3 thread options. M33x3.5, 1"x8 and 3/4"x 16
SC4 -  insert type chuck, again with a wide range of inserts available, including 62129 Thread Adaptor 1” x 10 TPI BSF RH
https://www.recordpower.co.uk/assets/products/product_downloads/prod_000924_download_file_213_1622108907.pdf
I wonder if the chuck that has been sold is actually an SC4 with an insert. If that IS the case, all that's needed is a replacement insert. Fingers crossed for that one!!

Note:- both SC3 and SC4 chuck bodies have a grub screw to lock the chuck to either the insert or the headstock. The inserts have their own grub screw.

[Twisted Trees]

I wonder if the chuck that has been sold is actually an SC4 with an insert. If that IS the case, all that's needed is a replacement insert. Fingers crossed for that one!!

Note:- both SC3 and SC4 chuck bodies have a grub screw to lock the chuck to either the insert or the headstock. The inserts have their own grub screw.

I know that the sc4 has a hex chuck key like the Nova or Patriot while the SC3 has a gear type of chuck key, if that helps identify. Problem is things evolve and I don't know if the SC3 was always a direct thread only option.

[Bill21]

Problem is things evolve and I don't know if the SC3 was always a direct thread only option.

The 2015 (3.2) version of the SC3 & SC4 chuck manual says the the SC3 is direct threaded only. The 2021 (3.6) manual says the SC3 is available as both direct threaded and insert versions. This is the relevant page of the 2021 manual.

[Bill21]

Any update on this? Intrigued to know the outcome. 

[JerryRamone]

Hello Badger boy. I just came across this thread and wondered if you still have the chuck?
 I have an old Arundel E5 lathe, and it’s spindle is 1” x 10tpi of I’ve measured correctly, so your chuck might be jus5 what I need. Long shot, but if you have it, please let me know, price and postage. Thanks,

[Paul Hannaby]

He was last active on the forum in December 2021 so you may not get any response!

[Twisted Trees]

Hello Badger boy. I just came across this thread and wondered if you still have the chuck?
 I have an old Arundel E5 lathe, and it’s spindle is 1” x 10tpi of I’ve measured correctly, so your chuck might be jus5 what I need. Long shot, but if you have it, please let me know, price and postage. Thanks,

You may find this useful https://charnwood.net/product/thread-adaptor-insert-1-x-10tpi-to-m33-x-3-5mm/