Step 04.7 — A idler: build the bearing stack¶
Step 7 of 38 · Chapter 04 — A/B drive units and front idlers
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Parts:
- 2× M5 precision spacer · Fasteners, Tools & Misc box
- 2× F695 bearing · Motion box
Do: Thread onto the standing bolt, bottom to top: M5 precision spacer, F695 flange down, F695 flange up, M5 precision spacer. The two bearings meet plain face to plain face, flanges pointing outward.
Check
Sight the stack from the side: spacer, flange, plain, plain, flange, spacer. Both bearings spin freely and independently.
What you're looking at
Manual p.65: the bearing stack. F695 bearings are 5 × 13 × 4 mm with a flange on one face. Fitted plain face to plain face, their flanges point outward, forming a channel one belt wide. A brass precision spacer each end sets stack height.
Caution
Rev D+ / LDO: the manual's "M5 Shim" is the brass M5 precision spacer in this kit — one per callout, never two stacked to make up height. src
Source: Voron manual p.65 · LDO Build Notes (Rev D) · Video: Part 3 @0:59:21