pic: Delrin Poly Cord Pulleys

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Originally Posted by JesseK

For example, the hollow Yellow Round Urethane belts my team likes to use (McMaster # 6567K56) has a minimum pulley diameter of 1.5". This year we were able to get away with a 1" diameter @ 3% cord stretch, given the gearing & power of the motors we chose.

Doesn't the hollow round belting flatten out when installed? Have you had trouble with the little connectors coming out?

We have only used the solid round belting but I am wondering if anyone can give a quick pros/cons of solid versus hollow.

- T