Chuck Adapter, M39 x 4 Thread 6" Diameter
- Cast iron lathe chuck backplate adapter fits lathes with M39 x 4 spindle nose thread
- Adapter is 6" (160 mm) in diameter and has no chuck mounting holes
- For all 5" and 6" chucks
- Includes instructions for final turning of the registration diameter to ensure concentricity
Part Number: 1922
Weight: 6.25 lb
Weight: 6.25 lb
Price: $79.95
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http://lmscnc.com/1922
This chuck adapter fits 9x20 lathes that have a M39x4 spindle nose thread.
There are no holes in this adapter so you can drill it for either a 3-jaw or 4-jaw chuck.
*NOTE* These adapters require machining on the lathe on which they will be used.
Instructions are included for final turning of the registration diameter on your lathe to ensure perfect concentricity.
Chris' TipsWOODWORKERS: Our threaded adapters are not suitable for use on wood turning lathes. Please do not purchase them for this application. These adapters require machining on the lathe on which they will be used, and this is impossible on a wood lathe.
| Nominal Size | 6" |
| Outside Diameter | Ø 6.3" (160 mm) |
| Thread | M39x4 |
| Bolt Holes | None |
| Hub Diameter | Ø 2.2" (56 mm) |
| Hub Length | Ø 0.9" (24 mm) |
| Flange Thickness | Ø 0.6" (16 mm) |
| Registration Boss | Ø 0.2" (4 mm) |
| Registration Diameter | Ø 5.1" (130 mm) |
Compatibility
This product works with these LittleMachineShop.com products:
This product works with lathes with a M39x4 chuck mount including:
- Grizzly G4000 9x19 Bench Lathe
- Harbor Freight 45861 Central Machinery 9x20 Bench Lathe
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