TAIWAN - Spool Holder ???

Bearing 6000ZZ X2 (10X26X8)
?? 6000ZZ X2 (?10 ?26 ?8)

wire-1-3030.stl hole 6mm for 3030 Aluminum extrusion
wire-1-2020.stl hole 4mm for 2020 Aluminum extrusion
wire-1-3030.stl ? 6mm ?? 3030 ???
wire-1-2020.stl ? 4mm ?? 2020 ???

Spool ->Inner diameter 26~59mm?Outside diameter 200mm?Height 120mm
?? ?-??26~59mm ???-200mm????-120mm?? ??