Technical Information – Collet Holders

ER Collet Holders

  • All holders will be supplied with clamping nut (standard)
  • Holders with “AK” will be supplied with sealed nut type Rego-fix
  • Runout accuracy ER Collet holders < 5μ
  • List of abbreviations:

IK

Axial inner coolant inlet

AK

Radial inner coolant inlet

WD

Throughout flat

FL

No throughout flat

T

Especially for TORNOS machines

OS

Without inner stop screw

Thread inner coolant lead in abbreviations:

AK0

M12 x 1.5 (F)

AK1

G 1/8″ (F)

AK2

M8 x 1 (F)

AK3

M10 x 1 (F)

B = Smallest hole diameter

Collet Holders: Overlap of Nuts

Nut G LA
ER08M M10 x 0.75 4.3 - 6.1
ER11M M13 x 0.75 5.7 - 7.5
ER16M M19 x 1 8 - 11.5
ER20M M24 x 1 8 - 11.5
ER25M M30 x 1 8.5 - 12
—- —- —-
UM/ER11 M14 x 0.75 4.9 - 6.6
UM/ER16 M22 x 1.5 7 - 10.5
UM/ER20 M25 x 1.5 8 - 11.5
—- —- —-
UX/ER16 M22 x 1.5 7 - 10.5
UX/ER20 M25 x 1.5 8 - 11.5
UM/ER25 M32 x 1.5 8.5 - 12
UM/ER32 M40 x 1.5 9.5 - 13
UM/ER40 M50 x 1.5 11.5 - 15
UM/ER50 M64 x 2.0 14 - 21

Complete Requests