Shars 8" Fully Machined Threaded Back Plate 1-1/2-8 For 3 or 4 Jaw Self Center Chuck New

For back plate you would not need to drill any mounting holes but you will need to turn the shoulder D1 down .040" to match the back of the lathe chuck to make the chuck & back plate more concentric with the lathe spindle and reach chuck's TIR

Product Code

202-6201

Product description

Mounting Thread Size: T=1-1/2 x 8 TPI
Shoulder Diameter: D1=6.54"
Bolt Circle Diameter: D2=7.087"
Hub Length: C=0.669''
Hub Diameter: D=3.58''
Flange Thickness: B=0.68''
Shoulder boss: h=0.16''
No. of Bolt Holes: 3

How to process back plate to guarantee Chuck's T.I.R?

Fully machined back plate can be mounted onto 8" 3 or 4 jaw self centering lathe chuck (p/n 202-5434, 202-5412,202-5474). As long as back plate Shoulder Diameter 6.54"> chuck's D1, all 8" chuck will fit in. All back plates have 0.04" allowance, please measure the size of Chuck's D1 before process your back plates. The size of back plates's D1 should be a little bit smaller than the size of Chuck's D1. Because the gap between back plate and chuck is smaller, chuck's TIR is better. No gap is the best. D1 need to be processed before back plate can be mounted.

You would not need to drill any mounting holes but you will need to turn the shoulder down .040" to match the back of the lathe chuck to make the chuck & back plate more concentric with the lathe spindle. When turning the shoulder of the backing plate, ONLY TURN THE SHOULDER OF THE BACKING PLATE WHEN ATTACHED TO THE LATHE SPINDLE. If you use a chuck to clamp the backing plate and then turn it, the backing plate will not be true to the lathe spindle and will have more runout than specified when the chuck and back plate are put together.

For detail information, please see www.shars.com search for 202-6201.

Product features

Made from high grade cast iron
Fits most 8" self centering plain back chuck (please verify the bolt circle diameter and shoulder diameter on the back of the lathe chuck)

Lathe Lathe Chuck Diameter

BRAND	MODEL	SWING	SPINDEL THREAD	3"	4"	5"	6"
ATLAS		6"	1/2"-20	202-6231
ATLAS	10100	6"	1"-10	202-6107-6, 202-6107-3
ATLAS	TH42	10"	1 1/2"-8	202-6230	202-6108-6, 202-6108-3	202-6192	202-9106, 202-6119
ATLAS	5991	12"	1 1/2"-8	202-6230	202-6108-6, 202-9108-3	202-6192	202-6109, 202-6119
ATLAS	3986	12"	1 1/2"-8	202-6230	202-6108-6, 202-6108-3	202-6192	202-6109, 202-6119
EMCO MAIER	MAXIMAT V10	5"	M39X4MM		202-6214		202-6215, 202-6217
GRIZZLY	G8688	7"	3" FLANGE
GRIZZLY	G4000	9"	M39X4MM		202-6214		202-6215, 202-6217
HARBOR FREIGHT	33684	7"	3" FLANGE
HARBOR FREIGHT	45861(BV20)	9"	M39X4MM		202-6214		202-6215, 202-6217
HOMIER	03911	7"	3" FLANGE
JET	920N	9"	1 1/2"-8	202-6230	202-9108-6, 202-6108-3	202-6192	202-6109, 202-6119
KING	CH-920 AG	9"	M39X4MM		202-6214		202-6215, 202-6217
LOGAN		9"	1 1/2"-8	202-6230	202-9108-6, 202-6108-3	202-6192	202-6109, 202-6119
LOGAN		10"	1 1/2"-8	202-6230	202-9108-6, 202-6108-3	202-6192	202-6109, 202-6119
LOGAN		11"	2 1/4"-8			202-6234	202-6110, 202-6120
LOGAN		12'	2 1/4"-8			202-6234	202-6110, 202-6120
LOGAN	6510/6560	14"	2 1/4"-8			202-6234	202-6110, 202-6120
MICRO-MARK	82710	7"	3" FLANGE
MICRO-MARK	82500	7"	3" FLANGE
SEARS	101.07301	6"	1"-8		202-6106-6, 202-6106-3
SEARS	101.2899	12"	1 1/2"-8	202-6230	202-6106-6, 202-6106-3	202-6192	202-6109, 202-6119
SHELDON	WM-46-P	13"	2 1/4"-8			202-6234	202-6110, 202-6120
SHERLINE	ALL	3.5"	3/4"-16	202-6212
SIDNEY MACHINE	LOT 160	14"	2 1/4"-8			202-6234	202-6110, 202-6120
SOUTH BEND	CL187ZB	10"	2 1/4"-8			202-6234	202-6110

We Also Have Other Lathe Chuck Back Plates Available at My Ebay Store, Please Contact Us for More Information and Prices!

Related products

8" 3 jaw Behind-Mount Self Centering Scroll Lathe Chucks Reversible Jaws

p/n: 202-5434

8" 3 jaw Front Mounting Self Centering Scroll Lathe Chucks Reversible Jaws

p/n: 202-6189

Visit my eBay Store:

Discount Machine Shop

Related products

8" 3 jaw Self Centering Scroll Lathe Chucks Solid Jaws

p/n: 202-5412

8" 4 jaw Self Centering Scroll Lathe Chucks Solid Jaws

p/n: 202-5474

Visit my eBay Store:

Discount Machine Shop

We have more LATHE CHUCKS available:

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Brand	Shars Tool
MPN	202-6201
Country of Origin	China

8" Fully Machined Threaded Back Plate 1-1/2-8 For 3 or 4 Jaw Self Center Chuck M

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