Conversion Chart for European/American Rubber Ring Sizes
You may be interested in this little-known fact about rubber rings: in Italy (and, I believe, other european countries) pinball rubbers rings are distinguished by codes like "0", "0P", "1".. the rubber itself has the code embossed. I think that this comes from the local manufacturers of rubber rings and even today the new rubbers come with these codes. If you look at the exploded view of the playfield in the 2nd generation Zaccaria game manuals, rubber rings are listed with these codes: "gommino n. 1".. "gommino n. 2".. etc.
Here's a table to convert from inches/mm to rubber codes (I'm not 100% sure > of its accuracy :-)
| inches | mm | code |
|---|---|---|
| 5/16" | 7 | 0 |
| 7/16" | 8 | 0P |
| 3/4" | 18 | 1 |
| 1" | 25 | 1P |
| 1-1/4" | 30 | 2P |
| 1-3/8" | 35 | 2 |
| 1-1/2" | 40 | 3 |
| 2" | 50 | 3P |
| 2-3/8" | 60 | 4 |
| 2-1/2" | 64 | |
| 2-3/4" | 70 | 5 |
| 3" | 80 | 6 |
| 3-1/2" | 90 | 7 |
| 4" | 100 | |
| 5" | 130 |
Thanks to Pierro Cavina for posting this information to the Zaccaria mailing list.
David Gersic
Copyright © 2005. All rights reserved.
This document may be freely distributed so long as the content is not modified.