Page 135 - MILLING CATALOG p549-788

Standard ER Collet Type DIN 6499 USER GUIDE ER, SC & SHRINK COLLETS
Standard ER Collet
Standard Shank for Use in Sealed Collets
30˚ 8°
Plain Shank
AD

B L Weldon/DIN 1835/B

Basic Dimensions A B Whistle Notch DIN 1835 Form E
11.5 18
Type 17 27
ER-11 21 31
ER-16 26 35
ER-20 33 40
ER-25 41 46
ER-32 52 60
ER-40
ER-50

Concentricity Tolerances Note: The front end of the sealed collet should be located beyond the
Weldon or the whistle notch.
L mm D mm Standard AA Ultra DIN 6499
Precision Precision Correct Wrong
6 1.0-1.6 0.015
10 1.6-3.0 0.01 0.005 0.015 4 7
16 3.0-6.0 0.01 0.005 0.015
25 6.0-10.0 0.01 0.005 0.020 HSK HSK
40 10.0-18.0 0.01 0.005 0.020
50 18.0-26.0 0.01 0.005 0.025
60 26.0-34.0 0.01 0.005

ER - Coolit Sealed Collet

Two Types ER32 SPR 15-16
ER32 SPR 16-17
Sealed Collet Sealed Collet Jet

Lm+in0.1 Lmi+n0.1

Ø16
Ø16

For straight shank With angular double
cutting tools with internal nozzles. Coolant flow is
coolant supply direct to the cutting edge
- for use with standard
straight shank cutting tools
(without coolant hole)

683