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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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15th Aug 2017, 5:18 pm | #1 |
Hexode
Join Date: Apr 2016
Location: Yeadon, West Yorkshire, UK.
Posts: 251
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Drive Belt Sizes
Hi all, I've been servicing my Volvo TD-603 stereo after the cassette deck stopped turning the cassette and was stuck in an infinite loop of auto-reverse. Luckily it turned out to just be a snapped drive belt which measures around 200mm when folded flat x 1mm cross section.
I have looked on ebay and there are plenty of belts with a 1mm cross section although the 'fold length' only goes up to 135mm and this seems constant across all the listings I have seen. Either I'm measuring my belt wrong or I'll have to look elsewhere for one in the size I need. Could anyone point me in the right direction? I'll include some pictures soon Thanks |
15th Aug 2017, 5:37 pm | #2 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,289
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Re: Drive Belt Sizes
I've several bags of Chinese mixed belts that I can check.
Can you confirm though that you're looking for a belt with a circumference of 400mm, as I'm not too sure what folded length means. It's normal to specify belts as having a circumference of about 10% less that that of a length of cord wound round the pulleys.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
15th Aug 2017, 7:29 pm | #3 |
Hexode
Join Date: Apr 2016
Location: Yeadon, West Yorkshire, UK.
Posts: 251
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Re: Drive Belt Sizes
Here's some images of how I measured it, the circumference is roughly 125mm ± 5mm.
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15th Aug 2017, 7:33 pm | #4 |
Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,225
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Re: Drive Belt Sizes
Do you mean the DIAMETER is roughly 125mm?
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15th Aug 2017, 7:43 pm | #5 |
Hexode
Join Date: Apr 2016
Location: Yeadon, West Yorkshire, UK.
Posts: 251
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Re: Drive Belt Sizes
That is what I meant, my mistake
Pretty embarrassing really considering I measure for a living! The circumference is 405mm Last edited by Vakito227; 15th Aug 2017 at 7:49 pm. |
15th Aug 2017, 10:29 pm | #6 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,289
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Re: Drive Belt Sizes
Sorry, But I don't have any belts that long. 1mm square cross section seems rather small for a belt of that length.
This company has belts which may fit, but none of them matches your exact specification:- http://www.gbaudio.co.uk/data/belts2.htm#Square Other suppliers are available.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
16th Aug 2017, 11:43 am | #7 |
Heptode
Join Date: Dec 2016
Location: Sheffield, South Yorkshire, UK.
Posts: 539
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Re: Drive Belt Sizes
I would just go for a 125mm Diameter belt to the nearest thickness. It will either move the parts, or get stuck or slip if it's wrong.
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19th Aug 2017, 8:07 pm | #8 |
Hexode
Join Date: Apr 2016
Location: Yeadon, West Yorkshire, UK.
Posts: 251
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Re: Drive Belt Sizes
All working now thanks
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