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Bison 8" 3-Jaw Forged Steel High Speed RPM Self-Centering Scorll Lathe Chuck

Your Price: $1,375.00
In Stock.
Part Number:7-820-0800
1 Pc. Bison-Bial Brand New 8" "Self-Centering" 3-Jaw Forged Steel Body Scroll Lathe Chuck, w/Two-Piece Reversible Hard Jaws. This Chuck is rear mounting, plain back chuck that would need to be mounted on a backplate and then onto a lathe. Backplate is not include with this chuck. Please contact me for type of backplate you need & I will help you out.


    Each chuck is provided with:
  • 1 Set of hard master jaws
  • 1 Set of hard top reversible jaws
  • 1 Chuck wrench
  • 1 Set of mounting bolts
  • 2 Hex keys
  • Forged steel body
  • 3 Pinion design



    3-Jaw Self-Centering Scroll Chucks

    Forged Steel, High Speed

  • Extremely accurate, and guaranteed to maintain exceptional accuracy for an extended period of time
  • Chucks have a modern and compact design
  • Able to fulfill the highest demands of our customers, and are used whenever high precision machining is needed
    Chuck Body
  • Drop forged of high grade steel and then put through precise machining operations
  • All bearing surfaces are carefully hardened and precisely ground Scroll Plate
  • Drop forged of fine quality alloy steel, and carefully case hardened
  • Thread flanks are ground on both sides
  • Each scroll is balanced
  • Made of fine alloy steel
    Teeth and Guides
  • Hardened and fully ground on both sides
  • Hardened and ground fine alloy steel
  • Made of fine alloy steel
  • Hardened and ground, then pressed into the pinion seats
    Precision grinding of scroll plate and jaw teeth allows you to:
  • Eliminate the possibility of deformation as a result of heat treatment
  • Reach uniform radial gripping force on all teeth of jaws
  • Increase guarantee period for high centering accuracy
  • Increase the gripping force
  • Each chuck is provided with a lubricator enabling current maintenance, and extending the life of chuck components
  • Each scroll chuck is assembled and statically balanced to high tolerance levels
  • Interstage and final inspections assure high quality



Check other sizes available


3-Jaw Self-Centering Scroll Chuck/ Two-Pieces Jaws

Principal Dimension-Back Mounting

FEdCHhAdapter Mounting Bolts
LNo. of
8"6.92926.29922.16540.15753.1501.772M10 x 1.50.9867-897-108

Over 50 years of Quality European Manufacturing have made BISON the number one choice for Steel and Semi Steel Manual Lathe Chucks. Whether scroll, independent or collet, these chucks have been replacing their competitors for the last 30 years without sacrificing production.

The value of Bison Chucks is not just their exceptional price but also European craftsmanship, made to international specifications, accompanied by an ease of maintenance.

Offered with direct spindle mounting or special application back plates the easy installation of Bison is recognized and appreciated throughout the industry. All parts are manufactured and assembled in the same plant for consistent repeatability in material and workmanship. Spare parts and jaw options are readily available which eliminates excessive downtime for new product conversions and standard maintenance

Clamping Range for 3-Jaw Chucks w/ Two-Pieces Revesible Jaws



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