The width of the roller casing is 9/16 inches. The length of the casing is 3 1/16 inches. The height is 1 1/16 inches. The O.D. of the wheels is 1 1/8 inches
Bob from SWISCO responded:
October 21, 2023
Thanks for posting. This tandem roller looks like our 81-164, and better yet, the critical dimensions match what you cite as well. Take a look and see what you think.