BOSCH MUM5 clutch

Original clutch has only one o-ring and this is not able to seal the meal grinder. If the grinder work the additional o-ring 28x2 (28mm inner) is pressed to the opposite side and the sealing ability is much bigger. Before use is recommended to lubricate the ring with cooking oil.

It is not always necessary to produce the fixing part (blue), it depends on the accuracy of the print. Recomended material PETG or PC, I used infill 60% gyroid, 0.15mm layer, 4-6 perimeters. Fixing part only 2 perimeters and 20% infill. All parts are fixed with a suitable glue.