Drive chain of unusual design.

[Sergei Slovenija]

Who knows what standard (type) of chain this is? drilling machine.

 

[Erie Fred]

Does this wrap around a pipe to hold it ?

 

[Sergei Slovenija]

Does this wrap around a pipe to hold it ?

I believe this is the main gear of a large drill press.

 

[Agroshield]

It might be in here:

Standard Handbook of Chains Chains for Power Transmission and Material Handling Second Edition | Technical Books Pdf | Download Free PDF Books, Notes, and Study Material...

www.technicalbookspdf.com

but the book is more geared to American industry than German.

Even if it is not there, it is a good book.

Maybe look up DIN standards for chains and you might get lucky.

 

[jgr2015]

From googling, it seems this is a stepless variable speed drive ?

Is the chain maybe of this type ?

Positive Infinitely Variable Chain, China PIV Chain manufacturers & exporters.

PIV chain (positive infinitely variable chains, or P.I.V. chains) is built according to ZBJ18003-89 for the applications of chain driven gearboxes

www.gd-chain.com

And a company that might be able to advise on repair:

Kettengetriebe PIV - Reparatur Revision Wiederherstellun

Favari Trasmissioni die eigenen Kunden in der Reparatur, in der Revision und Wiederherstellung von Kettengetriebe PIV. Gut ausgelegtes Ersatzteillager.

www.variable-speed-drive.net

 

[hotponyshoes]

PIV Stepless chain.
Clue in the top left photo of the maintenance plate

 

[Sergei Slovenija]

PIV Stepless chain.
Clue in the top left photo of the maintenance plate

 

[Trevorleach]

Could be wrong but that reminds me of the old ford cvt, and their many issues.

 

[Agroshield]

I wondered if the ZBJ18003-89 standard was a China special, but it is also mentioned in (and thus manufactured by) SKF:

https://www.skf.com/binaries/pub12/...N---SKF-Transmission-Chains_tcm_12-242150.pdf (Page 77).

So if you can identify which of the five sizes it is, an SKF distributor should be able to get it for you.

 

[Sergei Slovenija]

I wondered if the ZBJ18003-89 standard was a China special, but it is also mentioned in (and thus manufactured by) SKF:

https://www.skf.com/binaries/pub12/...N---SKF-Transmission-Chains_tcm_12-242150.pdf (Page 77).

So if you can identify which of the five sizes it is, an SKF distributor should be able to get it for you.

The chain from my question is for a CVT, where changing the diameter of the slightly spherical (from the side) pulley groove changes the gear ratio. Your version of the chain, for the pulley, with radial notches. I found a company in Poland specializing in such transmissions.

 

[hermetic]

Is it similar to the chain used on Cincinatti and other milling machines? that was called a Hyvo chain if memory serves. Only had a passing aquaintance with it!
Phil

 

[jgr2015]

Interesting! For sure @Sergei Slovenija the chain I found looks to be for a different drive type once I see your post above.

Searching some more, it looks like your chain may be known as a roller type piv chain ?

I wonder is it worth contacting one or two of the PIV chain companies to see if yours is a standard type or a special ?

 

[mcostello]

Had 3 PIV gearboxes very good shape scrapped at work. They laid around for a while and I weighed them in . The next week another company broke theirs and offered Me $500 for 1 of Mine.