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21st Oct 2021, 07:32 PM #1Most Valued Member
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Accurate collet chuck reducer ring needed
Just exploring options at the moment. I may need reduce the register of a collet chuck from 43mm x 7mm to 22mm x 7mm. So a ring 43mm x 7mm and a bore of 22mm is needed. Any suggestions on how to achieve this? Would the best way be to get a piece of hollow bar and machine the face, OD and bore the centre without disturbing setup and then part off to length. Should be pretty accurate I am guessing. It's so I can adapt this collet chuck to a Toyo ML-1.
Part number 050-110-25600 at this link -
https://www.arceurotrade.co.uk/Catal...-Collet-Chucks
Mount holes will need to be redone to a 35mm PCD to suit the spindle, as the spindle is 40mm diameter, but that's fairly easy if there's enough clearance when collet nut is removed.Nev.
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21st Oct 2021, 08:35 PM #2Most Valued Member
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Hmmm, collet chuck thread is 32mm and I need a 35mm PCD for the holes. 4mm diameter for the bolts which does not include counterbore for the bolt heads.
Nev.
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21st Oct 2021, 08:41 PM #3Most Valued Member
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Maybe this - https://www.arceurotrade.co.uk/Catal...Chuck-62mm-Dia - but it only has a register depth of 5mm and I need 7mm.
Nev.
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21st Oct 2021, 08:59 PM #4Most Valued Member
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More thinking out aloud. If I am reading the drawing here - https://www.aliexpress.com/item/33051718913.html - correctly, this collet chuck has a Register of 22mm with a depth of 6mm. Is is 45mm diameter with a PCD of 35mm with four holes at 5mm diameter. Correct? So close.
This is giving me a headache.Nev.
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23rd Oct 2021, 09:20 PM #5Most Valued Member
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Have ordered one of these -
https://www.aliexpress.com/item/3305...2eb64c4dk5gfJJ
Will worry about register depth after I get it. Maybe a 1mm shim on the spindle will work.Nev.
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24th Oct 2021, 09:42 AM #6Gear expert in training
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I'm curious to know how closely they actually stick to their concentricity and perpendicularity tolerances
Gear cutting specialists and general engineers www.hardmanbros.com.au
Fine pitch gear cutting from 0.1 Module www.rigear.com.au
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24th Oct 2021, 05:48 PM #7Most Valued Member
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27th Oct 2021, 08:56 PM #8Most Valued Member
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Order from AliExpress was canceled by them because seller did no send item on time. Refund has been issued. Plan B now whatever that is.
Nev.
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5th Nov 2021, 08:47 PM #9Most Valued Member
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Plan B in action. Have ordered from another AliExpress seller. This one has 100% feedback and item has already shipped.
This is the seller -
https://helang.aliexpress.com/store/...ting-displayerNev.
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