HQC ® QUICK-CHANGE Spindle Tooling <strong>for</strong> Automatics <strong>Hardinge</strong> Collet Body Part Part Machine Size Description <strong>and</strong> Model Number Figure Style No. Acme-Gridley - HQC Qick-Change Collet System 98 Hydraulic Collet Head Changing Fixtures Manual Collet A B Dimensions Capacity C D Machine Collet Tool Head Builder's Changing Rated Capacity Fixture QC Head Pad Back Collet Slot/ Part Bearing Overall Head Number No. Round Diameter Smooth Length Round Serrated DiameterHexagonThread Manual Square Round Hydraulic Hexagon Pneumatic Seal Insert Square 1" C, R, R4, R6, RA, RA4, RA6, RAN6, RAS6 4515 4501 5 ⁄16" to 1" 5 15 ⁄16" to ⁄16" 5 7 ⁄16" to ⁄8" 5 11 ⁄16" to ⁄16" 575-A1 575 7755 11 ⁄4" G, G4, GA4, R, R6, RA, RA4, RA6, RB6, RB8 4519 4505 5 1 ⁄16" to 1 ⁄4" 5 3 ⁄16" to 1 ⁄16" 5 1 ⁄16" to 1 ⁄16" 5 7 ⁄16" to ⁄8" 575-A2 575-A 7755 15 ⁄8" C, G, GA, GA4, R, R4,R6, RA, RA4, RA6 RA8, RAS4, RB, RB6, RB8 4521 4507 5 5 ⁄16' to 1 ⁄8" 5 9 ⁄16" to 1 ⁄16" 5 3 ⁄16" to 1 ⁄8" 5 1 ⁄16" to 1 ⁄8" 575-B2 575-B 7755 2" B, R, R4, R6, RA, RA4, 4A6, RAS, RAS4 RAS6, RB, RB6, RL 4533 4535 5 ⁄16" to 2" 5 ⁄16" to 2" 1 11 ⁄2" to 1 ⁄16" 3 3 ⁄4" to 1 ⁄8" 575-C1 575-C 7757 23 ⁄8" HSC Chucker–Spindle Adapter Required (Spindle Adapter Part No. – 7743) 4531 4505 5 1 ⁄16" to 1 ⁄4" 5 3 ⁄16" to 1 ⁄16" 5 1 ⁄16" to 1 ⁄16" 5 7 ⁄16" to ⁄8" 7781 90575 7757 25 ⁄8" M, R, R6, R8, RA, RA6, RA8, RB6, RB8 Internal Threads 4527 4513 3 5 ⁄4" to 2 ⁄8" 1 9 ⁄2" to 2 ⁄16" 5 1 ⁄8" to 2 ⁄4" 5 13 ⁄8" to 1 ⁄16" 575-D1 575-D 7757 31 ⁄2" M, MR, R6, R8, RA, R4, RA6, RB4,RB6,RB8 4537 4539 11 ⁄2" to 31 ⁄2" 11 ⁄2" to 37 ⁄16" 11 ⁄2" to 3" 11 ⁄2" to 21 ⁄2" 7793 — 7787 Cone - HQC Qick-Change Collet System 1" Six Spindle - SK, SL, SW, TB, TC, TK, TS 4517 4503 5 7 ⁄16" to ⁄8" 5 13 ⁄16" to ⁄16" 5 3 ⁄16" to ⁄4" 5 5 ⁄16" to ⁄8" 575-A1 575 7755 15 ⁄8" 1-5/8"(Also used <strong>for</strong> #61 New Britian Int.) 4523 4509 5 5 ⁄16" to 1 ⁄8" 5 9 ⁄16" to 1 ⁄16" 5 3 ⁄16" to 1 ⁄8" 5 1 ⁄16" to 1 ⁄8" 575-B3 575-B1 7755 25 ⁄8" 2-1/2", 2-5/8" 4529 4513 3 5 ⁄4' to 2 ⁄8" 1 9 ⁄2" to 2 ⁄l6" 5 1 ⁄8" to 2 ⁄4" 5 13 ⁄8" to1 ⁄16" 575-D1 575-D6 7755 New Britain - HQC Qick-Change Collet System 1" 51, 60, 408 4517 4503 5 7 ⁄16" to ⁄8" 5 13 ⁄16" to ⁄16" 5 3 ⁄16" to ⁄4" 5 5 ⁄16" to ⁄8" 575-A1 575 7755 11 ⁄4" 52, 601, SL 4519 4505 5 1 ⁄16" to 1 ⁄4" 5 3 ⁄16" to 1 ⁄16" 5 1 ⁄16" to 1 ⁄16" 5 7 ⁄16" to ⁄8" 575-A2 575-A 7755 15 ⁄8" 816 (External Threads) 4521 4507 5 5 ⁄16" to 1 ⁄8" 5 9 ⁄16" to 1 ⁄16" 5 3 ⁄16" to 1 ⁄8" 5 1 ⁄16" to 1 ⁄8" 575-B2 575-B 7755 15 ⁄8" Model #61 with ID Threads same as 15 ⁄8" Cone (Special Pads 94509-88-18-0679N <strong>for</strong> Rd <strong>and</strong> 94509-88-29-0549N <strong>for</strong> Hex <strong>and</strong> Sq.) 21 ⁄4" 61, 62 4525 4511 5 1 ⁄16" to 2 ⁄8" 1 1 ⁄2" to 2 ⁄16" 1 13 ⁄2" to 1 ⁄16" 3 1 ⁄4" to 1 ⁄2" 575-C1 575-C 7757 25 ⁄8" 26 Single Spindle, 126, 626 4527 4513 3 5 ⁄4" to 2 ⁄8" 1 9 ⁄2" to 2 ⁄16" 5 1 ⁄8" to 2 ⁄4" 5 13 ⁄8" to 1 ⁄16" 575-D1 575-D 7757 31 ⁄2" 635 4539 4537 11 ⁄2" to 31 ⁄2" 11 ⁄2" to 37 ⁄16" 11 ⁄2" to 3" 11 ⁄2" to 21 ⁄2" 7793 — 7787 Wickman - HQC Qick-Change Collet System 1" Six Spindle 4517 4503 5 7 ⁄16" to ⁄8" 5 13 ⁄16" to ⁄16" 5 3 ⁄16" to ⁄4" 5 5 ⁄16" to ⁄8" 575-A1 575 7755 25 ⁄8" One <strong>and</strong> Six Spindle 4529 4513 3 5 ⁄4" to 2 ⁄8" 1 9 ⁄2" to 2 ⁄16" 5 1 ⁄8" to 2 ⁄4" 5 13 ⁄8" to 1 ⁄16" 575-D1 575-D 7757 Options Hydraulic Power Unit For all Hydraulic Changing Fixtures Part Number: STA-0009189-01 Ingersoll-R<strong>and</strong> Pneumatic Ratchet RW6 Part Number: ST -0009189 Nylon Retaining Plugs Supplied installed in collet head Part Number: 7759 NOTE: See solid collets under specific manufacturer <strong>for</strong> dimensions. Collet Head Changing Fixture part number requires "ST" prefix. Initial order <strong>for</strong> Collet Head Changing Fixture includes QC Slot/Seal Inserts <strong>and</strong> Nylon Retaining Plugs assembled in place. QC Slot/Seal Inserts (3) Nylon Retaining Plugs (6)
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