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Can I order a STD Series JRC Air Core Chuck using the "Numbering System for Ordering" ?
Last Updated: 12/05/2007
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Air Chucks & Shafts
| Yes. We fully support the
legacy part numbers. Please see below.
STD Series Air Chucks & Shafts
Advantages of Air Chucks and Shafts
- Pays for itself in very little time due to decreased down time during
roll changes.
- No tools necessary.
- Empty cores remove instantly.
- Less chance of telescoping rolls when placing roll on arbor.
- No parts to remove or lose.
- Compensates for wide variation of core inside diameters automatically.
- Eliminates possibility of core damage.
- Drives equally in both directions (accelerating and decelerating)
- Interchangeable with any arbor mounted type chuck.
Unique Design Features
- Fully expanding periphery for maximum holding power.
- Leaves are limited by "U" shaped restrainers in order to
prevent over expansion (inflation without a core does not damage bladder)
- Bladder is fully protected by leaves and restrainers whether inflated
or deflated.
- Return springs are provided to bring leaves back to minimum diameter
when deflated.
- Large bladder diameter produces maximum possible holding torque.
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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