Source of pulleys for tapered shaft

[jpt]

I need to get a smaller motor pulley for my Adler 69. The end of shaft is tapered. Ebay is full of sewing machine pulleys but they all seem to be for straight shafts. Does anyone know a source for ones fitting the tapered shafts (I assume that this is some sort of standard taper)? Preferable Europe (or China if the price is right). 

[Matt S]

College Sewing in the UK sells tapered bore pulleys, but they aren't a direct fit for all tapered shaft motors. Ironically this includes the Jack motors they sell, for which I have to bodge pulleys to fit.

How tied are you to the old motor? Servos start at about £100 and are very controllable.

[jpt]

Actually since posting I've been looking at servo motors. I had a look at the Jack motors that seem to have 13mm shaft, which is a slight problem. I also found another option that has 15mm shaft (I asked the seller): https://www.ebay.co.uk/itm/1HP-750W-ENERDY-SAVER-SERVOMOTOR-FOR-Walking-Foot-Sewing-Machine-Variable-Speed/264426729590?hash=item3d910fb076:g:zEUAAOSwsMZdQBZV 

[Gregg From Keystone Sewing]

These are what typically would be used on older and some new needle positioning motors. Either one should work.

[Matt S]

1 hour ago, jpt said:

Actually since posting I've been looking at servo motors. I had a look at the Jack motors that seem to have 13mm shaft, which is a slight problem. I also found another option that has 15mm shaft (I asked the seller): https://www.ebay.co.uk/itm/1HP-750W-ENERDY-SAVER-SERVOMOTOR-FOR-Walking-Foot-Sewing-Machine-Variable-Speed/264426729590?hash=item3d910fb076:g:zEUAAOSwsMZdQBZV 

It's a slightly awkward size yes. However the servos come with a 75mm pulley, which will will give you far more control than a clutch motor. And if you want to go down to a 40mm pulley it's not a very difficult to modify a taper bore pulley to fit.

I've used several brands of the cheaper servo motors. Jack are definitely better than many, and the slightly odd shaft size is a minor disadvantage.

[jpt]

Thanks. I found the correct pulleys at College Sewing www-pages, but now I'm thinking about getting a servo motor. 

[jpt]

2 minutes ago, Matt S said:

I've used several brands of the cheaper servo motors. Jack are definitely better than many, and the slightly odd shaft size is a minor disadvantage.

This is good to know. Would recommend one with needle positioner: https://www.college-sewing.co.uk/jk-563a-1-220v-750w-1-hp-servo-motor-with-needle-position.html 

[Matt S]

2 hours ago, jpt said:

This is good to know. Would recommend one with needle positioner: https://www.college-sewing.co.uk/jk-563a-1-220v-750w-1-hp-servo-motor-with-needle-position.html 

Yep, I love the things.  Remember though that not all machines were built with them in mind, so you may need to make some minor modifications.

[jpt]

I ordered two servos from College Sewing. Hopefully I get them sometime next week.

[DonInReno]

I see you’ve already gone to a different motor, but if someone else is in the same boat I once ran across an adapter on eBay that accepted a tapered shaft on the inner diameter and a straight bore on the outside diameter to fit a standard pulley.  There are many different types of tapers so you’d have to know which you have.

You can probably find a hobby machinist with a lathe to modify a pulley to match the shaft for $20.

Having said that I’m betting many specialty pulley manufacturers make tapered bore pulleys.