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Missing part questions about Yuasa clone of Hardinge HV-4 5C indexing fixture

hk51

Plastic
Joined
Sep 1, 2003
Location
Amsterdam the Netherlands
Hello,
This Yuasa copy of the Harding HV-4 5c indexer fixture was purchased via the internet.
upon arrival it turned out that some parts were missing.
I don't know the name of this part, but it is the disc with the notches where the spring pin of the dividing disc falls to prevent the drawbar from turning loos., in stead a solid aluminium sleeve was mounted.
inside the disc that is retrachted by the lever there is a concave shape, that must have some purpose, but sins i dont have thease parts , it is unknown to me

So I'm looking for this part or images of it so I can make it.
A clear exploded view where these parts can be clearly seen would also help

Thx,
Ton (ak HK51)
 

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Some pictures with measurements:

notched face yuasa - 1.jpg

back side yuasa - 2.jpg

setscrew to lock on mating tube yuasa - 3.jpg

ID of part yuasa - 4.jpg


Setscrew hole is 8mm from small end of piece. Setscrew is 5-0.8x8mm, dog point.

Depth of notched outer notched ring relative to face is 2mm.
Inner ring .60mm raised (1.4mm relative to notched face).

Note: you need a fiber washer or equivalent between this part and the spring-pin indexing
disc, that part is ID 36.5mm, OD 44.35mm, 2.66mm thick. Hardinge part HV 0007367
WASHER HVH-145 FIBER (1/8).
 
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