Backplate Lathe Chuck Adapter, 6" to 4"

Fits a 6" chuck on a 4" flange

Part Number: 4772
Weight: 5.30 lb

Price: $39.95

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This is a semi-machined adapter plate. The side that attaches to the lathe flange is fully machined. The side on which the lathe chuck mounts is not finished.

Mount the backplate adapter on your lathe and complete machining of the chuck-mounting side. This ensures two things; that it will fit your chuck, and that it is concentric on your lathe.

Chris' Tips

Chris' Tips
Too many adapters? See our chart that correlates lathe spindle threads to lathe chuck adapters and our chart that provides dimensions of threaded lathe chuck adapters.

These adapters must be machined on your lathe to fit the chuck so that it is concentric on the lathe. In most cases you have to drill the chuck mounting holes also.

We provide complete instructions for mounting the adapter. Our transfer screw sets are the perfect tool for marking the chuck mounting holes on a lathe chuck adapter.

WOODWORKERS: 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.

Specifications

Specifications
Outside Diameter	Ø 6.3" (160 mm)
Center Hole	Ø 1.8" (45 mm)
Spindle Side Registration Recess	Ø 2.8" (72 mm)
Spindle Side Bolt Circle	Ø 3.3" (84 mm)
Chuck Side Registration Boss	Ø 5.2" (131 mm)
Chuck Mounting Holes	None

Compatibility

Compatibility

This product works with these LittleMachineShop.com products:

2028 Lathe Chuck, 3-Jaw 6"
2038 Lathe Chuck, 4-Jaw 6", Independent

This product works with lathes with a 100 mm flange chuck mount and a 8 to 12 inch swing including:

MX-8x14 Preenex (and others) 8x14 Lathe
Harbor Freight 44859 Central Machinery 8x12 Precision Mini Lathe
Grizzly G0768 8x16 Benchtop Lathe
LittleMachineShop.com 3536 HiTorque 8.5x16 Bench Lathe
SIEG C4 8.5x16 Bench Lathe
SIEG SC4 8.5x16 Bench Lathe
Travers Tools OT218410 OTMT 8x16 Bench Lathe
LittleMachineShop.com 3540 HiTorque 8.5x20 Bench Lathe
LittleMachineShop.com 3595 HiTorque 8.5x20 Deluxe Bench Lathe
LittleMachineShop.com 7500 HiTorque 8.5x20 Bench Lathe
LittleMachineShop.com 7550 HiTorque 8.5x20 Deluxe Bench Lathe