[Shop-talk] Looking for design engineering expertise

[Steve]

Here’s why I’m confused!




I’m trying to reverse engineer and then create a few copies 
of a partially complete OVERRIDING ROLLER CLUTCH (one-way)
that we have available, in-house (see photos at bottom of post) 

I need to re-create the missing spring cover sleeves and springs 
that follow the rollers.  If you’ve got any experience with 
OVERRIDING ROLLER CLUTCHES, you’ll know what I mean.




I’m hoping that there’s a simple value range that I can pick from and 
maybe even find some already available spring covers and even springs 
that can be adapted. 


If you’re interested in what this fits, it’s for a specific Gray & Davis (Boston MA) 
manufactured starter.  The original OVERRIDING ROLLER CLUTCH assembly was 
a sub-assembly for G&D and supplied by Miesel Press, a Boston machine tool 
manufacturer.  This starter was optionally available on Overland automobiles in 1914.  

Any suggestions? 

Below is the actual 6 roller version (maybe inserted in the 1950s??) in place of the 
original 3 roller version.  We’re working with the 6 roller design, as it’s interchangeable 
with an original 3 roller version.  As can be seen, we’re missing the springs and spring 
cups that follow the rollers, keeping them ready to lock the rotor to the shaft rotation.





Center rotor (w/ square drive) is 15mm thick

Max diameter of rotor is 68mm

Rollers are 15mm x 8mm dia. (or 5/16” dia.) ambiguous 

Square drive is 20 x 20mm 

Outer (containment) race machined into sprocket casting 


Steve Hammatt
Mount Vernon WA USA
360-661-6060
gsteve at hammatt.com


 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20191223/d8ff56a7/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: clip_image002[3].jpg
Type: image/jpeg
Size: 21112 bytes
Desc: not available
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20191223/d8ff56a7/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: clip_image004[5].jpg
Type: image/jpeg
Size: 19695 bytes
Desc: not available
URL: <http://autox.team.net/pipermail/shop-talk/attachments/20191223/d8ff56a7/attachment-0003.jpg>