Certificate of Quality
- Chuck body fine balanced G2.5 at 22.000 rpm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form JD/JF
Your current product selection:
Collet Chuck Type ER
JIS B 6339-2 · BT40
Certificate of Quality
- Chuck body fine balanced G2.5 at 22.000 rpm
- All functional surfaces fine machined
- Taper tolerance AT3
- Coolant supply form JD/JF
Collet Chuck Type ER
JIS B 6339-2 · BT40
For clamping tools with cylindrical shank in ER collets according to ISO 15488.
With taper JIS B 6339-2 BT40 form JD/JF.
Form JD/JF: interior coolant supply through centre (Form JD) and through the collar (form JF)
- Included in delivery: Locknut (balanced, with slide coating for higher clamping forces)
- Locknut type HS (High-Speed, fine balanced, with slide coating for higher clamping forces) for an extra charge
- Enlarging of size L for an upon request
Technical data subjects to change without prior notice.
The most important features:
- 1. Fine balanced G2.5 at 22,000 rpm
- 2. All functional surfaces grinded
- 3. Fine balanced ER nut
- 4. High runout accuracy
The most important features:
- 1. Fine balanced G2.5 at 22,000 rpm
- 2. All functional surfaces grinded
- 3. Fine balanced ER nut
- 4. High runout accuracy
Technical drawing
Please select your clamping diameter:
| Version | ER 16 |
|---|---|
| Ø D [mm] | 28 |
| Clamping range [mm] | 0,5 - 10,0 |
| L [mm] | - |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.520.16 |  short, 70.00 mm L = drilled through |
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Accessory | ||
| 40.521.16 |  long, 100.00 mm L = drilled through |
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|
Accessory | ||
| 40.522.16 |  oversize, 160.00 mm L = drilled through |
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Accessory |
| Version | ER 20 |
|---|---|
| Ø D [mm] | 34 |
| Clamping range [mm] | 1,5 - 13,0 |
| L [mm] | 41,5 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.520.20 |  short, 70.00 mm |
|
|
Accessory | ||
| 40.521.20 |  long, 100.00 mm |
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|
Accessory | ||
| 40.522.20 |  oversize, 160.00 mm |
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|
Accessory |
| Version | ER 25 |
|---|---|
| Ø D [mm] | 42 |
| Clamping range [mm] | 1,0 - 16,0 |
| L [mm] | 57 |
| Order No. | Gage length A in mm | |||||
|---|---|---|---|---|---|---|
| 40.520.25 |  short, 70.00 mm |
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|
Accessory | ||
| 40.521.25 |  long, 100.00 mm |
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|
Accessory | ||
| 40.522.25 |  oversize, 160.00 mm |
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Accessory |
