ER COLLET CHUCKS
BT ER COLLET CHUCKS
T.I.R. ≤ 0.0001" in ID bore Speed Up to 30,000 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.
BT30 - BEARING NUT Part Number Collet Size Collet
D
Max. RPM Fig.
D
Range Nut Wrench L L1
L1
L
B3007-0008-2.00 B3007-0008-4.00M B3007-0011-2.00 B3007-0011-4.00 B3007-0016-2.36
ER8 0.019 - 0.197" 08-NASPAN 2.00" 1.13" 0.47" 18K 1 ER8 0.019 - 0.197" WRENCH-ER08-MINI 4.00" 3.13" 0.47" 30K 1
ER11 0.019 - 0.275" ER11 0.019 - 0.275" ER16 0.019 - 0.406"
011-HEX 011-HEX
2.00" 1.13" 0.75" 30K 1 4.00" 3.13" 0.75" 30K 1
L
016-SPAN 2.36" 1.49" 1.26" 30K 1 016-SPAN 4.00" 3.13" 1.26" 30K 1 016-SPAN 5.00" 4.13" 1.26" 30K 1 020-SPAN 2.50" 1.63" 1.38" 30K 1
B3007-0016-4.00 ER16 0.019 - 0.406" B3007-0016-5.00 ER16 0.019 - 0.406" B3007-0020-2.50 ER20 0.039 - 0.511" B3007-0020-4.00 ER20 0.039 - 0.511"
Fig. 6
020-SPAN 4.00" 3.13" 1.38" 30K 1 B3007-0025-2.00 ER25 0.039 - 0.629" 025-SPAN 2.00" 1.13" 1.65" 30K 1 B3007-0025-4.00 ER25 0.039 - 0.629" 025-SPAN 4.00" 3.14" 1.65" 30K 1 B3007-0032-3.00 ER32 0.078 - 0.787" 032-SPAN 3.00" 2.13" 1.97" 30K 1 B3007-0032-5.00 ER32 0.078 - 0.787" 032-SPAN 5.00" 4.13" 1.97" 30K 1
BT30 - SOLID HEX NUT Part Number Collet Size Collet Range
Nut Wrench
L (mm)
L L1
D Max. RPM Fig.
BT30-ER16-70 BT30-ER16-100
ER16 0.019 - 0.406" 016-SPAN 70 2.76" 1.89" 1.10" 30K 1 ER16 0.019 - 0.406" 016-SPAN 100 3.94" 3.07" 1.10" 30K 1
BT30 - SOLID NUT Part Number Collet Size
Collet Range
Nut Wrench
L (mm)
L L1
D Max. RPM Fig.
BT30-ER20-63.5 BT30-ER20-100 BT30-ER25-60 BT30-ER25-90 BT30-ER32-70 BT30-ER32-100
ER20 0.039 - 0.511" 020-SPAN 63.5 2.50" 1.63" 1.34" 30K 1 ER20 0.039 - 0.511" 020-SPAN 100 3.94" 3.07" 1.34" 30K 1 ER25 0.039 - 0.629" 025-SPAN 60 2.36" 1.46" 1.65" 30K 1 ER25 0.039 - 0.629" 025-SPAN 90 3.54" 2.64" 1.65" 30K 1 ER32 0.078 - 0.787" 032-SPAN 70 2.76" 1.89" 1.97" 30K 1 ER32 0.078 - 0.787" 032-SPAN 100 3.94" 3.07" 1.97" 30K 1
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
ER Collet Chucks have coolant-thru capabilities. No disc, special nut or wrench required! See ER Coolant Collets on pages 65-70
ER Torque Wrenches Page 75
ER Back Up Screws Page 75
ER Collets Pages 65-70
ER Nuts Page 74
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