Adapters

LittleMachineShop.com has a full range of lathe chuck adapters for mounting a lathe chuck on a lathe.

A short note on our terminology

Adapter: Products listed as Adapters are flat adapters that bolt-on to lathes and no machining is required. See the product compatibility tab for machines that will support any given adapter.
Backplate Lathe Chuck Adapter: Products whose name begins with Backplate Lathe Chuck Adapter are flat adapters that are machined on the lathe side. The chuck side needs machining. Backplates are unthreaded.
Chuck Adapter: These products are threaded adapters. The chuck side needs machining. See link below for a reference page correlating lathe spindle threads to lathe chuck adapters.

When buying a Threaded Chuck Adapter

To help you get the right threaded backplate lathe chuck adapter, we have a chart that correlates lathe spindle threads to lathe chuck adapters and a chart that provides dimensions of threaded lathe chuck adapters .

The first rule of buying a threaded adapter is to measure the threads on your spindle. There are simply too may variants of every kind of lathe to trust any chart. Here is a Paper Thread Gage to help measure.

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P/N	Description	Price
1888	Adapter, 3" Lathe Chuck, Rotary Table	$34.95
3146	Adapter, 3" Lathe Chuck, Rotary Table	$29.95
1692	Adapter, 4" Lathe Chuck	$19.95
2426	Adapter, 4" Lathe Chuck	$29.95
2347	Adapter, 5" Lathe Chuck	$29.95
2358	Adapter, 5" Lathe Chuck	$29.95
2961	Adapter, 5" Lathe Chuck	$29.95
3151	Adapter, 5" Lathe Chuck for Prazi	$29.95
2330	Adapter, 5" Lathe Chuck, Rotary Table	$39.69
4912	Adapter, 6" Lathe Chuck	$29.95
4913	Adapter, 6" Lathe Chuck CLOSEOUT	$29.95
4768	Backplate Lathe Chuck Adapter, 3" to 3"	$29.95
4769	Backplate Lathe Chuck Adapter, 4" to 3"	$29.95
4770	Backplate Lathe Chuck Adapter, 5" to 3"	$29.95
4771	Backplate Lathe Chuck Adapter, 5" to 4"	$29.95
4772	Backplate Lathe Chuck Adapter, 6" to 4"	$39.95

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