Open types Linear Housings are combination of Open Linear Types Linear Bearing and Open ( Cut ) Aluminum Housing.
Housings are generally have four Tapped Holes on top and in Linear Shafts Guidance Systems two Shafts and four Linear Housings are used to make Linear Slide for Linear Smooth Motion.
The sizes are from SC 8, SC 10, SC 12, SC 16, SC20UU, SC25UU, SC 30UU, SC 40UU, SC50UU, SC 60 UU, SC 80UU