I was wondering if there is a post or spreadsheet showing sizes of pinch rollers for portables. I don’t see sizes mentioned anywhere (here or Google), most just say buy from FixYourAudio or something similar and it doesn’t say the size. They are too hard to measure with out a vernier (well not accurately anyway). I just want to look around and see if the sizes are available elsewhere, even just to try them out. FixYourAudio may have a lot but I only buy one thing at a time and with post to Australia it’ll be close to $20 to my door for a pinch roller.
I'm not aware of such a spreadsheet existing, wanted to create one myself at some point. For the most part, rollers that are available you can find and you don't need precise measurements to do so. A measurement by eye with a ruler put above the roller is usually more than enough to figure out its dimension. To use a caliper you will need to take it out first, otherwise you can't measure it. On FixYourAudio many times a certain type of roller will be listed only for a couple of models, but in practice it will fit on others as well. For example, the WM-700 series rollers will also fit on EX90/GX90, despite you won't find them if you search for EX90. Another example is the 13 x 8 x 2mm one that is used on most decks, boomboxes and portable recorders out there, even on some walkmans. Then it's the TPS-L2 type one, which is again used in most older SONY walkmans, from TPS-L2, to DDs (except DD9), WM-7 and many more. Same applies with other dimensions, which have been used on many models. Please let us know what pinch rollers do you need exactly. Also check the link in my signature and go to the "Walkman common problems" list thread. The devices listed there that don't have the rollers labeled with their model names on FixYourAudio have links to the correct dimension ones.
MCM used to have a really cool nicely done 4-color catalog, I never ordered from them but even the repair parts were eye candy to look at. It's still online at archive.org, the section you want is 5, the nice thing is it has part numbers and sizes although they were bought out by Newark? years ago and I don't think they have this stuff anymore. The PDF is too large to post. https://web.archive.org/web/20050203012736/http://mcm.newark.com/catalog/cat49.html There's several years, I don't know how much the catalog changed. I got lucky a few years ago and got a box with about 2000 NOS belts in it a few years ago, most were branded MCM (made in Taiwan) and have worked just fine.
You really are a champion here. I just wanted a size list so if I find somewhere else than Fixyouraudio like say eBay, Aliexpress whatever I can order and if they are no good then not much money was spent. FYAudio works out about $20 for a single pinch roller for me so was hoping to at least have a go buying something cheaper. my sig has the players I have if you need to know (I did it so I didn’t have to look up what I have all the time) . I don’t think they all need new pinch rollers but the wm-ex651 certainly does, one has a groove in it.
Thanks for this mate. I can’t seem to view it (can see section 5 but how to see 186) while on my iPad for some reason so will check it out on a pc when I get back home.
Here's a direct link to the PDF https://web.archive.org/web/2005030...uct-details/text/mcm/html/cat49/section05.pdf
Here's a page from PBR (Russel Industries USA), I think they're still in business but their website is very old. They used to supply a ton of belts, rollers and other parts for audio visual equipment. http://www.russellind.com/prbline/prb.htm They have a few catalogs on line but you really have to drill through the menus to find them, maybe searching "pdf site: russellind.com" in google will help. Another page with sizes, EVG makes the idler tires or did.
I love these type of sites and catalogues, reminds me of flicking through the huge RS (Radio Spares ) paper catalogue way back when I was working in the broadcast industry.
When I was a young kid we had a very nice hobby store down the street and next door was an electronics store, the real kind with boxes, switches, all the parts to build pretty much anything. I remember the clerk was at a counter at one end just like a pharmacist. We all thought we were going to build radios and TVs when we go older but the store shut down in the late 70's.
Well pretty much all electronics now are screens with a cpu … phones, TVs, computers, all boring compared to our 70s 80s 90s stuff with switches, dial, gears ..