This is one of two rollers from sliding glass patio door. I removed and lubricated but did not think to measure. The door does not roll easily so I would like to replace rollers.
Bob from SWISCO responded:
May 28, 2019
Start by looking over our 81-138. Carefully go over all the dimensions, particularly the height and width of the housing, as well as the diameter of the wheels, to see if they match.