I ordered replacement infeed and outfeed roller for the Ridgid TP1300 planer (that is no longer sold or supported by Ridgid). Although it was out of stock at the time that I found their website, customer support told me that they would send an email when they came in, which they did!
I found a video on Youtube that helped me replace the rollers (suggest that perhaps Cutech could make a more concise one of their own and provide a link on their website?). Now my planer is back in service! Thanks, Cutech!