Collet chuck questions

What do you want to know ? Looks like a D1-8 mount that will take 2J collets , possibly 22J . Both are expensive . The OP should know this information . :)
 
D1-3 or D1-4 mount. Ebay seller has no idea although he has offered to measure for me.



Hardinge1.jpg

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D1-4 pins are .625 in diameter and it probably takes 2J or 5C collets . Nice chucks but the 2J collets are expensive .
 
www.ebay.com

Hardinge Sjogren 2J Lathe Speed Chuck | eBay

2J collets ARE included in this sale Hardinge collets all seem to be in fair to good condition with nothing greater than normal wear and tear and light oxidation in small areas. I have not had this chuck apart and have not used it on a lathe so I cannot attest to its accuracy.
www.ebay.com
 
D8 would indicate it's a D1-8 mount. Yes D1-8 spindles use 6 cam locks but not all D1-6, D1-8, etc accessories will always utilize all 6 pins. Actual jawed chucks most likely yes but if it's something lighter duty there is no benefit to use all 6 cam pins. Quicker to just use 3.

It does look like it would be D1-8 also judging by how large the nose taper register is compared to a D1-3 or D1-4.
 
darkzero said:
D8 would indicate it's a D1-8 mount. Yes D1-8 spindles use 6 cam locks but not all D1-6, D1-8, etc accessories will always utilize all 6 pins. Actual jawed chucks most likely yes but if it's something lighter duty there is no benefit to use all 6 cam pins. Quicker to just use 3.

It does look like it would be D1-8 also judging by how large the nose taper register is compared to a D1-3 or D1-4.
Click to expand...


Thanks for that. More pictures have arrived via eBay. Pins appear to be larger than the D1-4 pins (5/8” diameter). More later from my desktop.
 
It is a D1-8 mount according to the the Hardinge Sjogren Speed Collet Chucks document as Darkzero noted, also the spindle nose mount is huge.

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I thought only D1-3 and D1-4 chucks had 3 pins. Still learning........
 
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