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6.3" Fully Machined Threaded Back Plate with 1-1/2" - 8 TPI for 6“ 4 Jaw Independent Lathe Chuck

SKU
202-6600
$77.95
Out of Stock

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More Information
Mfg SKU #202-6600
Lathe Chuck CategoryBack Plates Threaded Mounting
BrandShars Tool
back plate diameter6.30
Spindle Nose TypeThreaded
shoulder diameter5.16
compatible chuck diameter6
mounting1-1/2 - 8
Bolt Circle Diameter5.709

Spotlight

  • Made from high grade cast iron
  • Fits most 6" Independent plain back chuck (please verify the bolt circle diameter and shoulder diameter on the back of the lathe chuck)
  • This machined back plate is designed to mount onto our 6" 4 jaw independent lathe chuck (p/n 202-6579). The mounting holes to mount the back plate to the chuck are drilled and tapped, and the registration (shoulder) needs to be slightly turn down to match the recess on the back of the lathe chuck.
  • You would not need to drill any mounting holes but you will need to turn the shoulder down .050" 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. 

 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
Spotlight left

Back Plate Dimension

 

Chuck

Size

A

Thread

T

D1 D2 C E D B h

No of

Bolt 

Hole

6" 6.3" 1-1/2"-8 5.16" 5.709" 0.551" 0.5" 3.58" 0.63" 0.16" 4

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