This is a spool holder for the Anycubic Linear Plus. It uses a main rotor bearing assembly from a seagate hardrive. The bearing shaft is 10.7mm and the outer bell housing is 25mm. The whole assembly fixes to the 2020 aluminium extrusion with M4x12mm (3x) nuts and bolts. The support brakets are ajustable and uses M3x14mm (6x) screws to mount to the main base.
Anycubic Linear Plus (Kossel Delta)