South Bend SB1236 - 9" 4 Jaw Scroll Chuck
SB1236 9" 4 Jaw Scroll Chuck
Absolute top quality chucks made for high-precision work.
The South Bend SB1236 9" 4 Jaw Scroll Chucks are amongst the best available on the market.
Walking into the factory that makes these South Bend lathe chucks, one would be amazed at the plethora of high tech testing equipment made by some of the most respected names in the world.
This includes these 9" high-precision cast-iron 4-jaw scroll chucks with hardened-steel jaws for durability and extreme clamping force and grip.
The scroll gear design allows a single chuck key to control all the jaws simultaneously.
Made with tight tolerances to satisfy the most demanding machinists out there!
The instruction sheet was written by our U.S. based Technical Documentation Department and is packed with useful information.
Like all South Bend products, it comes with a 2-year warranty which covers parts and assures the unit is free from factory defects.
The South Bend Customer Service and Technical Support Teams are U.S. based. Parts and accessories for the chuck are available on-line and shipped from the South Bend parts warehouse in Springfield, MO.
- Outer diameter: 9.17"
- Bore diameter: 2.76"
- Outer diameter clamping: 0.20" – 8.66"
- Inner diameter clamping: 2.44" – 8.27"
- Max speed: 2000 RPM*
- Front mounting cap screw torque: 43 ft/lbs.
- Rear mounting hex bolt torque: 79 ft/lbs.
- Approximate shipping weight: 50 lbs.
- Fine-grain cast-iron body
- Scroll gear design provides single chuck key control of all jaws
- Front or rear mounting bolt pattern
- Universal plain back mounting
*The maximum speed listed above is ONLY possible with the chuck jaws and the workpiece in complete rotational symmetry. The workpiece weight must be within the limits of the lathe and the workpiece mass must be of equal density throughout to prevent centrifugal imbalance or radial runout—even if a tailstock or other support is used for additional support.