belt replace solutions in hi fi machines

If I understand you correctly... You want a drive belt made of material that shrinks when heated. You could install the belt without dismantling the equipment, then heat-shrink it "to size".

I read it as he wants a belt which you can join the cut ends such as you can do with O rings. I've superglued the cut and cleaned ends of belts together in the past, but not without problems, and of course it would be difficult to mate the cut ends when they are under tension.

R

The anomaly at the join will cause speed blip if passing around a small drive cog, and would the material shrink evenly. Perhaps someone majkes a miniature size version of the old leather segmented belt system that you adapt to length. Then the spring system that I've only ever seen on cine-projectors where you used a smaller spring to join the cut ends.

This is the sort of leather belts I meant

If the segments were of order 2mm then the roughness may be of the same order as motor commutator segments and speed irregularity evened out by capstan momentum

Le 1/27/2012 2:34 PM, William Sommerwerck a écrit :

exactly : just what my poor english was not able to explain correctly !

Le 1/27/2012 3:45 PM, Ron a écrit :

in most cases you can glue without having the tension, as you wait before to put it in the right axes. You make the glue work "around" the axes but not puting it.

If you can slice the ends of a cut oversize belt accurately (squarely) enough, and align them with the aid of a jig similar to a tape splicing block, you can superglue them together. I've tried this in the past but with very limited success.

Anyone who's repaired hi fi professionally has been here, and the only reliable way is to strip down the deck and do the job properly. IMO

Good Luck R

Of course, but there are some parts, you can really wonder how its humanly possible to dismantle them !!! (beeing an amateur, all the more)

like this :

To change the capstan belt, it seems you have to dismantle all the capstan axe ...

some view here :

you

Marking up sections / photographing prior to dismantling, leads to a lot less swearing and cussing than trying to feed bits of rubber through and around things you cannot even see , and belt keeps dropping off those parts you cannot see or get to with a hook or 2.