Rubber-flex collet chuck with internal stop for repeat axial location.
Rubber-Flex Collet Chuck with Inner Stop
KORRETTO rubber-flex collet chuck with inner stop combines uniform outside clamping with an internal locating stop. It is used when the workpiece needs both rubber-flex clamping contact and repeat axial positioning. This page covers the rubber-flex collet chuck with inner stop, not the standard rubber-flex collet body and not an internal expansion mandrel.
Product Overview
The inner stop helps locate the workpiece during repeated loading, while the rubber-flex collet provides distributed outside clamping around the workpiece diameter. This structure is useful for shafts, sleeves and short parts that require repeat length control.
Selection should confirm the workpiece diameter, clamping length, stop position, locating face, collet type, draw force, clamping force, maximum speed and machine layout.
Key Features
| Feature | Description |
|---|---|
| Integrated inner stop | Helps control axial position during repeated loading. |
| Rubber-flex outside clamping | Provides distributed contact around the outside diameter. |
| Repeat length control | Suitable when workpiece seating and axial location are important. |
| Reduced marking risk | Helps reduce point-contact jaw marks. |
| Separate from expanding mandrels | This page covers outside clamping with inner stop, not internal expansion. |
Typical Applications
- Shafts and sleeves requiring repeat length control
- Short parts with axial locating requirements
- Outside clamping with internal stop
- Precision turning and finishing
- Repeated loading in CNC production
Technical Data and Dimensions
Use the drawing and parameter tables to check chuck structure, inner stop arrangement, clamping range, stroke, draw force, radial clamping force, maximum speed and workpiece compatibility.
| No. | Structure Name |
|---|---|
| 1 | Segmented Steel Clamping Head |
| 2 | Clamping Head Push-Pull Ring |
| 3 | Face Stop |
| 4 | Draw Bar Connection Thread |
| 5 | Spindle Flange |
| 6 | Front Stop Mounting Thread |
| Specification | Stroke (mm) | Maximum Draw Force (kN) | Maximum Radial Clamping Force (kN) | Maximum Clamping Diameter (mm) | Recommended Workpiece Tolerance (mm) | Maximum Speed (r/min) |
|---|---|---|---|---|---|---|
| 32 | 2.5+3 | 25 | 70 | 32 | ±0.3 | 8000 |
| 42 | 2+2.5 | 35 | 80 | 42 | ±0.5 | 7000 |
| 52 | 2+2.5 | 40 | 94 | 52 | ±0.5 | 7000 |
| 65 | 2+2.5 | 45 | 105 | 65 | ±0.5 | 6000 |
| 80 | 2+2.5 | 50 | 115 | 80 | ±0.5 | 5500 |
| 100 | 3+5 | 65 | 150 | 100 | ±1.0 | 5000 |
| 125 | 3+6 | 70 | 165 | 125 | ±1.0 | 3200 |
| 160 | 3+3 | 100 | 235 | 160 | ±1.0 | 3200 |
Related Rubber-Flex Pages
FAQ
What is a rubber-flex collet chuck with inner stop used for?
It is used for outside clamping of workpieces that also need repeat axial location through an internal stop.
Is this an internal expansion mandrel?
No. This product clamps the workpiece from the outside. The inner stop is used for locating, not for internal expansion clamping.
When should I choose an inner stop?
Choose an inner stop when the workpiece must seat against a locating reference during repeated loading.
Is this the same as a rubber-flex collet body?
No. A rubber-flex collet body is the replaceable clamping element. This page covers a chuck assembly with an inner stop.
What information should I provide?
Provide the workpiece drawing, clamping diameter, clamping length, locating face, stop position, tolerance, machine layout and accuracy requirement.
Can the stop position be matched to my workpiece?
The stop arrangement should be checked from the workpiece drawing and the chuck structure before selection.