pic: Quick-Change Motor Drive Module 1

[Ari423]

How are you attaching the shaft to the gearbox? We struggled with that problem when we used them last year and ended up using a 5/8" hollow output and welding in a 5/8" OD to 1/2" ID with 1/8" key adapter so we would have a keyway. In the end this solution didn't work very well because the keyway was oversized which introduced slop into the system. We really didn't want to use the built-in roll pin because we didn't want to machine the pin holes into the shafts and were afraid of them shearing during competition and not being able to replace them. How did you solve this problem?