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

Description

Shars 6" 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
202-6109
Product description
Mounting Thread Size T: 1-1/2'' x 8 TPI
Shoulder Diameter D1: 5.16"
Bolt Circle Diameter D2: 5.591"
Hub Length C: 0.551''
Hub Diamete D: 3.58''
Flange Thickness B: 0.63''
Shoulder boss h: 0.16''
No. of Bolt Holes: 3
Product application
How to process back plate to guarantee Chuck's T.I.R?
Fully machined back plate can be mounted onto 6" 3 jaw or 4 jaw self centering lathe chuck (p/n 202-5433, 202-5411, 202-5473).
As long as back plate Shoulder Diameter 5.16"> chuck's D1, all 6" 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 202-6109.
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 have matching LATHE CHUCKS available:
Click
Order#
to the item page
Order# 202-5411
Order# 202-5433
Order# 202-5473
Order# 202-6188
Order# 202-6255
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RETURNS:
If the item stated as brand new is found defective on arrival or incorrect item was shipped, buyer understands that the product will be repaired or replaced at seller's discretion, and be given a reasonable amount of time. Buyer is responsible for return shipping costs and insurance. Warranties are offered by the manufacturer and will be honored by the manufacturer. All shipping and handling fees will not be returned in any case.