ER COLLET CHUCKS
CAT ER COLLET CHUCKS
T.I.R. ≤ 0.0001" in ID bore Speed Up to 25,000 rpm
FEATURES • Ball bearing nut with ground collet race • AT3 or better taper • Equipped with a right-hand-threaded back-up screw
RPM
COOLANT-THRU Coolant-Thru Thru-tool coolant
MILLING
DRILLING REAMING TAPPING
Please note that the maximum RPM listed in our catalog may vary depending on the toolholder shank, weight, balanceability and the G rating.
CAT40 - BEARING NUT Part Number Collet Size Collet
D
Max. RPM Fig.
L2 D D1
L1
Range Nut Wrench L L1
L
C4007-0008-2.50 C4007-0008-4.00M C4007-0011-2.50 C4007-0011-4.00 C4007-0011-6.00 C4007-0016-2.25 C4007-0016-3.50 C4007-0016-6.00 C4007-0016-9.00
ER8 0.019 - 0.197” WRENCH-ER08-MINI 2.50" 1.11"
-
0.47" 1.75" 25K 2 0.47" 1.75" 25K 2 0.75" 1.75" 25K 2 0.75" 1.75" 25K 2 0.75" 1.75" 25K 2
ER8 0.019 - 0.197” WRENCH-ER08-MINI 4.00" 2.61" -
ER11 0.019 - 0.275" ER11 0.019 - 0.275" ER11 0.019 - 0.275" ER16 0.019 - 0.406" ER16 0.019 - 0.406" ER16 0.019 - 0.406" ER16 0.019 - 0.406"
011-HEX 011-HEX 011-HEX
2.50" 1.12" - 4.00" 2.62" - 6.00" 4.62" -
L
Fig. 1
016-SPAN 2.25" 1.50" - 016-SPAN 3.50" 2.11" - 016-SPAN 6.00" 4.63" -
1.26" -
25K 1
1.26" 1.75" 25K 2 1.26" 1.75" 25K 2
D1 D
016-SPAN 9.00" 1.65" 7.64" 1.26" 1.75" 25K 3
L1
C4007-0020-2.50 ER20 0.039 - 0.511" C4007-0020-4.00 ER20 0.039 - 0.511" C4007-0020-6.00 ER20 0.039 - 0.511" C4007-0020-9.00 ER20 0.039 - 0.511"
020-SPAN 2.50" 1.12" - 020-SPAN 4.00" 2.60" - 020-SPAN 6.00" 4.62" -
1.38" 1.75" 25K 2 1.38" 1.75" 25K 2 1.38" 1.75" 25K 2
L
020-SPAN 9.00" 1.71" 7.63" 1.38" 1.75" 25K 3
L
C4007-0025-2.50 ER25 0.039 - 0.629" 025-SPAN 2.50" 1.14" - C4007-0025-4.00 ER25 0.039 - 0.629" 025-SPAN 4.00" 2.62" - C4007-0025-6.00 ER25 0.039 - 0.629" 025-SPAN 6.00" 4.62" -
1.65" 1.75" 25K 2 1.65" 1.75" 25K 2 1.65" 1.75" 25K 2
Fig. 2
D1 D
C4007-0032-0.76 ER32 0.078 - 0.787"
032-SPAN 0.76" 0.14" - 032-SPAN 3.13" 2.38" - 032-SPAN 5.00" 4.29" -
1.58" - 1.97" - 1.97" -
25K 1 25K 1 25K 1
C4007-0032-3.13
ER32 0.078 - 0.787"
L1
C4007-0032-5.00 ER32 0.078 - 0.787" C4007-0032-9.00 ER32 0.078 - 0.787"
L2
L
032-SPAN 9.00" 1.74" 7.63" 1.97" 1.75" 25K 3
C4007-0040-3.13
ER40 0.118 - 1.023"
040-SPAN 3.13" 2.37" - 040-SPAN 5.00" 4.26" -
2.44" - 2.44" -
25K 1 25K 1
C4007-0040-5.00 ER40 0.118 - 1.023"
Notes: • Back-up Screw included with ER Collet Chuck. • *For Extended Length holders, “L” dimension has tapered length. To confirm clearance, please download model/drawing from our website Available in TAPER PLUS + Dual-taper and flange contact
L
Fig. 3
ER Collet Chucks have coolant-thru capabilities. No disc, special nut or wrench required! See ER Coolant Collets on pages 65-70
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