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BT50 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:
BT50 Collet Chuck Typ ER

Collet Chuck Type ER
JIS B 6339 · BT50

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 · BT50

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

With taper JIS B 6339 BT50 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 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

BT50 Collet Chuck Typ ER Technical Drawing

Please select your clamping diameter:

Version ER 16
Ø D [inch]1.1
Clamping range [inch]0.02 - 0.39
L [inch]-
Order No. Gage length A in inch    
50.520.16 BT50 Collet Chuck Standard short Pictogram
short, 2.76 inch

L = drilled through
DXF
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50.521.16 BT50 Collet Chuck Standard long Pictogram
long, 3.94 inch

L = drilled through
DXF
Step
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50.522.16 BT50 Collet Chuck Standard oversize Pictogram
oversize, 6.30 inch

L = drilled through
DXF
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Version ER 25
Ø D [inch]1.65
Clamping range [inch]0.04 - 0.63
L [inch]2.24
Order No. Gage length A in inch    
50.520.25 BT50 Collet Chuck Standard short Pictogram
short, 2.76 inch
DXF
Step
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50.521.25 BT50 Collet Chuck Standard long Pictogram
long, 3.94 inch
DXF
Step
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50.522.25 BT50 Collet Chuck Standard oversize Pictogram
oversize, 6.30 inch
DXF
Step
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Version ER 32
Ø D [inch]1.97
Clamping range [inch]0.04 - 0.79
L [inch]2.52
Order No. Gage length A in inch    
50.520.32 BT50 Collet Chuck Standard short Pictogram
short, 2.76 inch
DXF
Step
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50.521.32 BT50 Collet Chuck Standard long Pictogram
long, 3.94 inch
DXF
Step
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50.522.32 BT50 Collet Chuck Standard oversize Pictogram
oversize, 6.30 inch
DXF
Step
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Version ER 40
Ø D [inch]2.48
Clamping range [inch]0.08 - 1.02
L [inch]2.87
Order No. Gage length A in inch    
50.520.40 BT50 Collet Chuck Standard short Pictogram
short, 3.15 inch
DXF
Step
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50.521.40 BT50 Collet Chuck Standard long Pictogram
long, 3.94 inch
DXF
Step
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50.522.40 BT50 Collet Chuck Standard oversize Pictogram
oversize, 6.30 inch
DXF
Step
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