what are the dimensions of the pillow blocks for the round linear guide rails?

Are you referring to this part?: https://www.buildyourcnc.com/item/mechanical-rails-linear-ball-bearing-block Additional Information: yes that block Additional Information: I created a drawing of the linear bearing guide block that shows the dimensions that you need for mounting. Specifically, the mounting spacing is 1.38 inches both axially and transversely. You can see the drawing on the linear bearing guide block page here: https://www.buildyourcnc.com/item/mechanical-rails-linear-ball-bearing-block And directly here: https://www.buildyourcnc.com/images/20mm%20bearing%20guid%20block%20for%20round%20rail-800.JPG If you need further information, please let me know. Thanks.