The bushing is an alternative of the SC8UU linear bearing. This reduces vibration and improves the smoothness of the stroke, which positively affects the quality of the print. Also the plastic bushing is much lighter than the standard bearing SC8UU.
The bushing has original IGUS profile (RJ4JP-01-08)
The inner diameter of the hole in the model - 8.1mm
Material: Nylon or PLA, not ABS
The hole axis must be Z-oriented for printing.
The hole for the shaft must be slightly processed after printing. The bushing should easily slide along the rod and should not have a backlash.
To handle the hole, do not use a drill bit, this may damage the part. Use a reamer or a semicircular diamond needle file.
It is recommended to lubricate the rod with a liquid lubricant.
You will need four M4 nuts per each bushing. Also you can use the self-locking nuts.