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BT40 Collet Chuck Typ ER

Certificate of Quality

  • Chuck body fine balanced G2.5 at 22.000 rpm
  • All functional surfaces fine machined
  • Taper tolerance AT3
  • Coolant supply form ADB
Your current product selection:
BT40 Collet Chuck Typ ER

Collet Chuck Type ER
JIS B 6339 · 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 ADB

Collet Chuck Type ER
JIS B 6339 · BT40

For clamping tools with cylindrical shank in ER collets according to ISO 15488.

With taper JIS B 6339 BT40 form ADB.
Form ADB means: Central coolant supply and coolant channels on the collar which can be sealed again.

  • 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.

Features Collet Chuck Typ ER

The most important features:

  • 1. Fine balanced G2.5 at 25,000 rpm
  • 2. All functional surfaces grinded
  • 3. Fine balanced ER nut
  • 4. High runout accuracy
Features Collet Chuck Typ ER

The most important features:

  • 1. Fine balanced G2.5 at 25,000 rpm
  • 2. All functional surfaces grinded
  • 3. Fine balanced ER nut
  • 4. High runout accuracy

Technical drawing

BT40 Collet Chuck Typ ER Technical Drawing

Please select your clamping diameter:

Version ER 16
Ø D [mm]28
Clamping range [mm]0,5 - 10,0
L [mm] short-
L [mm]-
Order No. Gage length A in mm    
40.520.16 BT40 Collet Chuck Standard short Pictogram
short, 70.00 mm

L = drilled through
DXF
 Step
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Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  3. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  4. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  5. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  6. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  7. Locknut ER

    Locknut ER

    Locknut pre-balanced

  8. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  9. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.521.16 BT40 Collet Chuck Standard long Pictogram
long, 100.00 mm

L = drilled through
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.522.16 BT40 Collet Chuck Standard oversize Pictogram
oversize, 160.00 mm

L = drilled through
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
Version ER 20
Ø D [mm]34
Clamping range [mm]1,5 - 13,0
L [mm] short41,5
L [mm]41,5
Order No. Gage length A in mm    
40.520.20 BT40 Collet Chuck Standard short Pictogram
short, 70.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  3. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  4. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  5. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  6. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  7. Locknut ER

    Locknut ER

    Locknut pre-balanced

  8. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  9. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.521.20 BT40 Collet Chuck Standard long Pictogram
long, 100.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.522.20 BT40 Collet Chuck Standard oversize Pictogram
oversize, 160.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. Flat wrench for ER locknuts

    Flat wrench for ER locknuts

    Wrench for locknuts ER 11, ER 16, ER 20

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
Version ER 25
Ø D [mm]42
Clamping range [mm]1,0 - 16,0
L [mm] short57
L [mm]57
Order No. Gage length A in mm    
40.520.25 BT40 Collet Chuck Standard short Pictogram
short, 70.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  6. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  7. Locknut ER

    Locknut ER

    Locknut pre-balanced

  8. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  9. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.521.25 BT40 Collet Chuck Standard long Pictogram
long, 100.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.522.25 BT40 Collet Chuck Standard oversize Pictogram
oversize, 160.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
Version ER 32
Ø D [mm]50
Clamping range [mm]1,5 - 20,0
L [mm] short64
L [mm]64
Order No. Gage length A in mm    
40.520.32 BT40 Collet Chuck Standard short Pictogram
short, 70.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  6. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  7. Locknut ER

    Locknut ER

    Locknut pre-balanced

  8. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  9. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.521.32 BT40 Collet Chuck Standard long Pictogram
long, 100.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.522.32 BT40 Collet Chuck Standard oversize Pictogram
oversize, 160.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
Version ER 40
Ø D [mm]63
Clamping range [mm]2,5 - 26,0
L [mm] short72
L [mm]73
Order No. Gage length A in mm    
40.520.40 BT40 Collet Chuck Standard short Pictogram
short, 70.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  3. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  4. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  5. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  6. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  7. Locknut ER

    Locknut ER

    Locknut pre-balanced

  8. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  9. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.521.40 BT40 Collet Chuck Standard long Pictogram
long, 100.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
40.522.40 BT40 Collet Chuck Standard oversize Pictogram
oversize, 160.00 mm
DXF
 Step
Add item to wishlist Add item to wishlist Item already on wishlist
Accessory
  1. Pull studs

    Pull studs

    Available in different versions

  2. Balancing rings

    Balancing rings

    For fine-balancing of all tool holders with cylindrical outer diameter

  3. Clamping wrench for ER locknuts

    Clamping wrench for ER locknuts

    Wrench for locknuts ER 25 - ER 40

  4. ER Collets

    ER Collets

    High precision collets for all Collet Chucks Typ ER

  5. Torque wrench

    Torque wrench

    For highest clamping and repeatability when tightning Standard-ER and Power Collets (Inserts for torque wrench additionally required)
    Order No.: 84.600.00

  6. HG Mini Collets

    HG Mini Collets

    HG Mini Collets for HG Mini Extentions

  7. HG Mini Extentions

    HG Mini Extentions

    For clamping tools with small diameters in High-Precision Chucks and Collet Chucks Type ER and Power Collet

  8. Locknut ER

    Locknut ER

    Locknut pre-balanced

  9. Locknut ER (HS-Version)

    Locknut ER (HS-Version)

    Locknut fine-balanced

  10. Dowel

    Dowel

    Dowel for sealing the coolant supply via the collar (Form B)
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