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625 Differential Rocker Bar
This is the differential bar for the 'NEMA17 Rocker-Bogie Mars Rover Chassis' kit. It is a 172 × 28 × 8 mm bar that pivots under the deck on an M5x25 bolt. A 625 bearing (5 × 16 × 5 mm) press-fits into a 16.05 mm pocket in the 28 mm hub. Each end at ±80 mm has a 3.4 mm eye for the M3x25 cross-pin links, so the bar averages the two rocker angles and keeps the deck level.
🧩 Part of the NEMA17 Rocker-Bogie Mars Rover Chassis (levels deck by averaging rocker angles) kit.
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