Chinese lathe Reeves drive questions

[GLS]

A couple of questions about the Reeves drive on the generic Chinese lathes, now that I am starting to look at and reassemble my gift horse.

No belt came with mine, both pulleys spin, but the speed selection lever is stuck in position one. It will disengage from the selector, but will not move up to the higher speeds. Does this function only work when the motor is spinning both pulleys, via the belt?
Also, what is the correct standard belt size for these lathes? I have seen 560 x 13 x 8 and 3L240 mentioned, but as far as I have been able to discover these are two different size belts. Mine is an older Delta badged 12” x 36”.

Thanks in advance….Gareth

 

[Phil Pascoe]

Yes, the speed change works only when the lathe is running

 

[Phil Pascoe]

The mechanisms at both ends are sprung so that as the pulley diameter increases or decreases at one end the opposite happens at the other end, thereby altering the drive speed.

 

[GLS]

The mechanisms at both ends are sprung so that as the pulley diameter increases or decreases at one end the opposite happens at the other end, thereby altering the drive speed.

Yes, the speed change works only when the lathe is running

Thanks Phil, that at least explains why I am apparently stuck in 1st, now all I have to do is find the correct belt size.

 

[Phil Pascoe]

You (probably, I don't know that lathe) have to remove the spindle to get the belt on - it will pay you to change the bearings at the same time, they're not that expensive.
Firms like Bearings, Belts, Transmission products are very good.

 

[Tris]

According to this it's a 49-139 belt assuming this matches your lathe
https://www.google.com/url?sa=t&sou...kQFnoECCYQAQ&usg=AOvVaw2c-9wEJOn5cJ9cVVve0kGg