This ball is the lower support for the extractor's shaft: the bottom end of the shaft pivots on it, so the baskets spin centred and rub-free. A small part, but key to a smooth spin.
Smooth-surfaced and highly wear-resistant; with a light coat of food-grade lubricant, the shaft turns with precision and stability. A worn lower support makes the shaft wobble and vibrate, so renewing it in time extends the life of the rest of the mechanism. If your extractor starts to vibrate or the shaft is noisy at the bottom, it's usually this ball — a cheap part that brings back a smooth spin.
Pick the ball by the diameter of your lower shaft:
Measure the Ø of the bottom end of the shaft and pick the one that matches.
| Function | Lower support / pivot for the shaft |
|---|---|
| Finish | Smooth surface, high wear resistance |
| Lubrication | Food-grade lubricant compatible |
| Sizes (shaft Ø) | 8 · 10 · 12 · 14 mm |

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