These pictures are of prototypes, it would be useful if you could PM me on relevant sizes you use, 48dp and 64dp
New one piece spur gear from Tfracing in the UK, this spur gear saves the need of the 2 halves and the little screws, this way you pop the shaft in and the bearings and drop it in ,very easy and quick to use and saves time.
Its made from light weight Delrin, we also have a front spool made of the same product. can be made in 64dp or 48dp it does come with the belt guides see posting below
Any interested parties send me a PM.