This bearing block is a look a like the ones used on the Wanhao Duplicator i3 V 2.1. You will need two LM8LUU long type bearings to replace the standard ones and 4 pcs M4 bushings (heat the bushings with an airgun before mounting to make them fit). The tight fit will hold the bearing in place but you can also use 15mm bearing clips or 1mm zip ties to secure the LM8LUU in the bearing block.Print SettingsPrinter: Wanhao Duplicator i3 v2Rafts: YesSupports: NoResolution: 0.1Infill: 50%Notes: ABS 100/240