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HQC

®

Quick-Change Collet Systems

SpindleMountAdapter Spindle

for Hardinge Collet-Ready Spindle Lathes

ColletHeadCollet Body

Hardinge A2-4 5C/GT SpindleHardinge A2-5 16C A2-6 20C/25C A2-8 25C Spindles

Required System Components sold separately• Collet Body • Spindle Mount • Collet Head • Wrench • Spare Seals

SpindleMountSpindle DBCA
Collet Body ColletHeadCollet Body Optional Work Stops on Page 7.

Collet Body

Dimensions A B C D Part Back Bearing Overall Head Internal Style Description Number Diameter Length Diameter Thread Stop Thread 5C/GT HQC Body 1477-00-00 1.250" 4.614" 2.399" 1.238" 1

1

�

8

" - 20 TPI RH (31.75) (117.19) (60.93) 1.238" - 20 RH 16C HQC Body 2007-00-00 1.889" 6.670" 3.149" 1.870" 1

11

�

16

" - 20 TPI RH (47.98) (167.77) (79.00) 1.87" x 1.75mm RH 20C A2-6 HQC Body 2021-00-00 2.378" 7.910" 4.069" 2.359" M53 x 1mm RH (60.40) (200.91) (103.35) M60 x 1.5mm RH 25C A2-6 HQC Body 2057-00-00 2.930" 8.080" 4.069" 2.871" 2

5

�

8

" - 24 TPI RH (74.42) (205.23) (103.35) M73 x 1.5mm RH 25C A2-8 HQC Body 2033-00-00 2.930" 8.305" 4.069" 2.871" 2

5

�

8

" - 24 TPI RH (74.42) (210.95) (103.35) M73 x 1.5mm RH

Spindle Mount Assembly and Parts List

5C/GT – A2-4 16C – A2-5 20C & 25C A2-6 25C – A2-8 Assembly and Parts List Part Number Part Number Part Number Part Number Model Number — A2-5 HQC-42 A2-6 HQC-65 A2-8 HQC-65 Mount Assembly 7861-00-00 2015-00-00 2025-00-00 2031-00-00 — Mount 7863-00-00 2013-00-00 2023-00-00 2029-00-00 — Balance Screw — 0100808 0100908 0100905 — Key Screw 7865-00-00 2017-00-00 2027-00-00 2035-00-00 — Mounting Bolts [4 each] 7867-00-00 0101216 MS-0104219 MS-0104620

SpindleMount Key ScrewBalance Screw

Collet HeadWrenchSeals

Rated Capacity Seal Style and Hydraulic Manual /Plug Spindle Part Number Round Smooth Round Serrated Hexagon Square Wrench Wrench Kits

HQC-GT 4505-00-00
5 �
16 " to 1.062"
5 �
16 " to 1.062"
5 �
16 " to
7 �
8 "
5 �
16 " to
3 �
4 " ST-0000575-A2 ST-0000575-A 7777 A2-4 (7.93 to 26.98) (7.93 to 26.98) (7.93 to 22.22) (7.93 to 19.05) HQC-42 16C 2005-00-00
5 �
16 " to 1.750"
5 �
16 " to 1.750"
5 �
16 " to 1
1 �
2 "
5 �
16 " to 1
1 �
4 " ST-0000575-E1 ST-0000575-E 7779 A2-5 (7.93 to 44.45) (7.93 to 44.45) (7.93 to 38.10) (7.93 to 31.75) *0942-00-00 HQC-65 20C/25C 2019-00-00
5 �
16 " to 2.559"
5 �
16 " to 2.559"
5 �
16 " to 2
5 �
32 "
5 �
16 " to 1
3 �
4 " ST-0000575-F1 ST-0000575-F 7779 A2-6 & A2-8 (7.93 to 65.00) (7.93 to 65.00) (7.93 to 54.77) (7.93 to 44.45) *0943-00-00
Notes: Millimeters in parentheses. *This part number includes the Hydraulic Power Unit.Manual Wrench picture shown above. See Page 8 for additional information on Collet Wrenches.Slot Seal Kits include 3 Slot Seals and 6 Retaining Plug replacements for Collet Head.

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