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Air Chucks and Shafts

Air Chucks and Shafts

Advantages of Air Chucks and Shafts

  1. Pays for itself in very little time due to decreased down time during roll changes.
  2. No tools necessary.
  3. Empty cores remove instantly.
  4. Less chance of telescoping rolls when placing roll on arbor.
  5. No parts to remove or lose.
  6. Compensates for wide variation of core inside diameters automatically.
  7. Eliminates possibility of core damage.
  8. Drives equally in both directions (accelerating and decelerating)
  9. Interchangeable with any arbor mounted type chuck.

Unique Design Features

  1. Fully expanding periphery for maximum holding power.
  2. Leaves are limited by "U" shaped restrainers in order to prevent over expansion (inflation without a core does not damage bladder)
  3. Bladder is fully protected by leaves and restrainers whether inflated or deflated.
  4. Return springs are provided to bring leaves back to minimum diameter when deflated.
  5. Large bladder diameter produces maximum possible holding torque.

Cut-away view of typical air chuck showing its cross section. This view clearly shows the unique (patented) leaf locking design which provides the best bladder protection of any chuck presently available.

This photo of a chuck with the leaves removed shows the new (state-of-the-art) extended life bladder and the (patented) interlocking clamps which seal the bladder to the chuck body.
Dimensions of Most Common Chuck Sizes
Body Dia. Length (A) Expanding Len. (B) Shoulder Width (C) Flange Dia. (D) Flange Thickness (E) Minimum Core Dia. (F) Expanded Dia. (G) Bore (H)
3 5-1/16 2-1/2 7/8 3-1/4 3/8 2-15/16 3-1/16 1-7/8 Max*
3 6-9/16 4 1-1/4 3-1/4 3/8 2-15/16 3-1/16 1-7/8 Max*
3 7-9/16 5 1-1/4 3-1/4 3/8 2-15/16 3-1/16 1-7/8 Max*
3 9-9/16 7 1-1/4 3-1/4 3/8 2-15/16 3-1/16 1-7/8 Max*
3 11-1/16 8-1/2 1-1/4 3-1/4 3/8 2-15/16 3-1/16 1-7/8 Max*
6 6-5/8 4 1 6-1/2 3/8 5-15/16 6-1/8 3-1/2 Max*
6 8-5/8 6 1 6-1/2 3/8 5-15/16 6-1/8 3-1/2 Max*
70mm 6-9/16 4 1-1/4 3 3/8 2.693 2.819 1-5/8**
70mm 9-9/16 7 1-1/4 3 3/8 2.693 2.819 1-5/8**
* 1-7/8 with permanent air connection, 1-3/4 with air inflating valve.
** 1-5/8 with permanent air connection, 1-3/8 with air inflating valve.

Dimensions for the Above Table

Numbering System For Ordering

Note: Rear guide flange holes are used to attach a larger diameter flange.
Standard pattern is quantity (3), 120 degrees apart, on a 2.5" diameter bolt circle, #10-32 tap.


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Other products and companies referred to herein are trademarks or registered trademarks of their respective companies.
**Prices subject to change without notice.**

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