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4.92" Fully Machined Threaded Back Plate with 2-1/4 x 8 TPI for 3 or 4 Jaw Self Centering Lathe Chucks

SKU
202-6234
$59.35
In stock

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More Information
Mfg SKU #202-6234
Lathe Chuck CategoryBack Plates Threaded Mounting
BrandShars Tool
back plate diameter4.92
Spindle Nose TypeThreaded
compatible chuck diameter5
mounting2-1/4 - 8
Bolt Circle Diameter4.250

Spotlight

This back plate would need to be machined in order to fit our 5" 3 jaw or 4 jaw self centering lathe chuck (p/n 202-5594).

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. 

  • The back plate may come with two or three additional screws (depending on type) for removal the back plate from the chuck. They are not used to mount the chuck to the back plate, mounting screws should be included with the chuck

 

Lathe Lathe Chuck Diameter
Brand Model Swing Spindle 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

202-6109

202-6119

Atlas 5991 12" 1 1/2"-8 202-6230

202-6108-6

202-6108-3
 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

202-6108-6

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

202-6108-6

202-6108-3
 
  • Spotlight left

    Back Plate Dimension

     

    Chuck

    Size

    A

    Thread

    T

    D1 D2 C E D B h

    No of

    Bolt 

    Hole

    5" 4.92" 2-1/4"-8 3.78" 4.25" 0.945" 0.63" 2.17" 0.63" 0.1" 6
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