I have a 12" Record vise that I'm going to be mounting on my 1-3/4" thick maple laminated work bench. I'd like to mount the vise flush with the front, left side of the bench. To permit this location for mounting, the metal legs on the left side of the bench will have to be mounted just to the right of the vise. Essentially, the vise will be hanging off the cantilevered part of the work bench. The vise weighs in at upwards of 50 lbs.
Here's my question. Is it likely that the weight of the vise will cause the cantilevered part of the work bench to bend, sag, or otherwise deform in some way? If so, might I be able to prevent such an occurrence with some sort of bracing?