This is the Z Carriage tensioner carrier it is designed 8mm drive shafts M10 Drive shafts
(The distence between the bearing shafts centres is 68mm and deisnged for use with 8mm bearing shafts)
It will require 1 5x70mm (minimum) bolt plus nut, 2 M10 Nuts 2 LM8UU Bearings.
**Note: Other Models will need to be purchesed to complete this item.**