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View Full Version : What is a DIN 55021 spindle?



Gary Gill
10-17-2009, 11:18 AM
In my search for a lathe, I found the Precision Matthews PM1127VF has a DIN 55021 spindle.
http://www.machinetoolonline.com/PM-1127-VF.html
How does that compare to the D1-X camlock mounts? Is DIN 55021 an oddball mount?

Circlip
10-17-2009, 12:01 PM
Nip across to the "ROHM" website and bang in DIN55021

Regards Ian.

Limy Sami
10-17-2009, 05:56 PM
Even easier.

http://www.lathes.co.uk/latheparts/page11.html

philbur
10-17-2009, 06:19 PM
The stud hole dimeter of 21mm on the Short Taper with bayonet Fitting Din 55022 size no. 3 (second table) is clearly wrong.

Just a thought
Phil:)


Even easier.

http://www.lathes.co.uk/latheparts/page11.html

Gary Gill
10-17-2009, 07:08 PM
Thanks for the info. I will steer clear.

Spin Doctor
10-17-2009, 10:57 PM
I've got their PM1027 and if the chuck mount is the same it has three SHCS that come in from the back slide of the mounting surface on the spindle. As I understand it the original EMCO 8" theat the 9x18s are modeled after had basically the same set-up. If you are changing chucks a ot its a PITA. But if most of the time you are leaving the chuck on it not a problem. But I plan on replacing the spindle on mine with one that has an internal 5C collet mount with possibly the 4D Hardinge style spindle nose at some point.

juergenwt
10-18-2009, 02:50 PM
Gary go here: http://www.workholding.com/pdf/s3050%20(in%20s3049).pdf

Second one from the top.

Gary Gill
10-18-2009, 02:55 PM
Thanks for the link.

Limy Sami
10-18-2009, 07:16 PM
The stud hole dimeter of 21mm on the Short Taper with bayonet Fitting Din 55022 size no. 3 (second table) is clearly wrong.

Just a thought
Phil:)

MMMM?.......... well unless my eyes are more shot than I think they are;) Rohm made the same mistake.

philbur
10-18-2009, 08:35 PM
Interesting, I have what I thought was a DIN 55022 no.3 spindle as it doesn't have the inner bolt circle of the other 2. Maybe I should have looked at the table and not just the pretty pictures. The outer bolt circle holes are 10.5mm. so it would seem that I have a DIN 55021. Sorry my mistake.:confused:

Phil:)


MMMM?.......... well unless my eyes are more shot than I think they are;) Rohm made the same mistake.

Limy Sami
10-19-2009, 04:19 AM
No problem Phill, we all make em, in fact they're my speciality:D
Take care.

willmac
10-19-2009, 09:55 AM
I hope Gary does not mind if I extend this thread a bit to ask about another DIN spindle. In this case a milling machine spindle - DIN 2079. This has an ISO 40 taper, but my question is concerning the tenon retaining threads. I think they are M6 , but this feels a bit tight. Can anyone confirm, or better still provide a source for a drawing?

Gary Gill
10-19-2009, 10:24 AM
I don't mind. It is all about learning something new.

philbur
10-19-2009, 02:27 PM
I don't have the DIN standard but here is an extract from the ISO standard:

http://i186.photobucket.com/albums/x36/philbur/extract7-24nose_Page_1.jpg
http://i186.photobucket.com/albums/x36/philbur/extract7-24nose_Page_2.jpg
http://i186.photobucket.com/albums/x36/philbur/extract7-24nose_Page_3.jpg

Phil:)


I hope Gary does not mind if I extend this thread a bit to ask about another DIN spindle. In this case a milling machine spindle - DIN 2079. This has an ISO 40 taper, but my question is concerning the tenon retaining threads. I think they are M6 , but this feels a bit tight. Can anyone confirm, or better still provide a source for a drawing?

willmac
10-19-2009, 06:15 PM
Thanks Phil- M6 looks good. Does anyone know where suitable tenons can be obtained? I guess I could make some but buying would be easier and quicker.