Not a Myford owner but probably an “A” section belt. Wrap a piece of string around 2 opposing pulleys cut at the overlap and measure the result. That should give you the belt length
If you are not used ot working on this type of machine I strongly suggest you do not disturb the spindle but use a link belt instead of a conventional type. Example from “new” Myford:
Take the bearing caps off.
Lift the mandrel out.
Move the counte rshaft over to one side after loosening the thrust collar and pulley.
Then fit an new A23 belt.
Far better than the link belts (which don’t fit between the pulley and the counter shaft bracket on early ML7’s).
If you are not used ot working on this type of machine I strongly suggest you do not disturb the spindle but use a link belt instead of a conventional type. Example from “new” Myford:
On a ML7 the belt is an A23 and a link belt has NO benefit. I would not use link belt, it is for lazy ——-s may well slip and cause vibration. Just do the job properly ! Noel.
Link belts are fine if you use the right one and fit it the right way round. They do need quite a lot of tension. At one point RDG sold a belt with moulded rubbery plastic links, but they were useless and did nothing but slip. I bought a proper one that looks like the current “New Myford” item from RS who stock a range of them:
I’ve used one on my S7 for years and also on my VMB to connect the 3ph motor to the spindle (having eliminated the central pulley which was just a PITA).
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