Originally Posted by SSfab  I don't like the whole nylon/plastic spider idea, simply because it will wear, thus become a headache. |
Obviously you've never tried it. I used mine for years, and they are backlash-free to this day. It's a tight sliding fit, using essentially self-lubricating plastic on a smoth aluminum surface. There is no measurable wear. And they will tolerate significant misalignment with near zero stress on the shafts.
Regards,
Ray L.