FRC Bearing Load Ratings (Climber Winch)

[Lil' Lavery]

There was a thread last year that talked about the RPM ratings for hex bearings, but it doesn't appear that either primary supplier of FRC hex bearings followed through with posting load ratings on their product pages. While those numbers may once again come into play for flywheel shooter designs, I'm interested in the load ratings for bearings for purposes of climber design. Particularly the hex bearings, which seem to be of a less standardized nature compared to the round bearings (which are closer matches to what are found in industry). With many of the winch-based climber designs, many teams are going to be supporting the weight of their robot with two bearings. While hex bearings have been used for supporting drivetrain loads, that robot weight has been split among four or more axles and eight or more bearings. I'm curious if teams are going to be getting themselves into trouble with bearing loads on their climber winches.

In terms of round bearings, this Amazon listing has FR8ZZ bearings listed as having a static radial load rating of 2.4kN (~540lb), which pushes it beyond all but the most extreme shock loading conditions on a climber. Anyone have any data for the hex version of this bearing?