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| Top Range Finder Ball Bearing and Plunger Diameter | |
| Author | Message |
|---|---|
| alt.kafka Joined: 16 Nov 2019 Posts: 10 |  Posted: Wed Sep 16, 2020 4:16 pm Post subject: Top Range Finder Ball Bearing and Plunger DiameterI have a Crown Graphic that's in pretty good condition overall. I'd like to get the top rangefinder working. I have some steel dowel pins that I think will work for spacers (2x3mm and 2x4mm), and ball bearings of a couple of sizes. I'm not sure what to use, though. Does anyone know the diameter of the ball bearing? Also, I lack a plunger and end cap. I should be able to turn a new plunger on the lathe, and I can probably easily make an end cap out of nylon or some other material. Does anyone know the large and small diameters of the plunger, or other measurements? I know the two possible overall lengths (1.040" or 1.140"), but that's the only number I have. Thanks |
| 45PSS Joined: 28 Sep 2001 Posts: 4081 | Posted: Thu Sep 17, 2020 6:39 am Site search > balls and spacers < all the terms selected, speed graphic help selected = 29 results of which ths one has the dimension you are looking for: https://graflex.org/helpboard/viewtopic.php?t=4952&highlight=balls+spacers and this service manual section has the measurement for the lower plunger. http://www.southbristolviews.com/pics/Graphic/manual-pdf/TRFService.pdf |
| alt.kafka Joined: 16 Nov 2019 Posts: 10 | Posted: Thu Sep 17, 2020 8:17 am Excellent! Thank you. |
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