Ultra Short 3 Jaw Scroll Chucks

Self-centering scroll chucks are designed with jaws on a scroll which open and close with a wrench that is turned on a pinion. They accurately self-center on the workpiece as the jaws close.

Forged steel or steel chucks have greater accuracy, less wear and can be operated at higher RPM’s.

Type JF 3D 3 Jaw 2-3/4″ Dia.
with Hardened, Reversible Jaws

Item Number 70-225-8 Outside diameter over knurled clamping ring 2-27/32″ Height of chuck 5/8″ Jaw height 7/16″ Jaw width 25/64″ Center hole 5/16″ Bolt circle 43/64″ I.D. Clamping capacity 41/64″ – 2-3/8″ O.D. Clamping capacity 0 – 2-7/8″ Weight 1 lb.

Type 3Z 3 Jaw 4″ Dia.
with Internal and External Jaws

Item Number 70-220-9 Outside diameter over knurled clamping ring 4-1/2″ Height of chuck 15/16″ Jaw height 21/32″ Jaw width 15/32″ Center hole 1-1/4″ Mounting flange dia. 1.969″ Height of flange 5/32″ I.D. Clamping capacity 7/8″ – 3-3/4″ O.D. Clamping capacity 0 – 4-1/8″ Weight 5 lbs.