Have any of you guys sheared the key on the driven shaft sheave? I must have sheared mine tonight. The sheave turns as it should but the shaft is not turning with the sheave. I turned the connector block to make sure the shaft wasn't locked up and stopped turning but it turns free. I am wondering if there is any reason in particular it may have sheared and do you think there will be damage to the sheave or shaft. I had it apart once a long time ago and can't really remember what it looks like in there. I do remember its a tapered shaft but that's about it. In your experience, do you think I can get lucky with just a new key or you think I'm looking at serious damage? I can't get into it for a little bit and I am just wondering to expect.