Spur gear, module 2.5 mm, 31 teeth (pitch Ø77.5 mm), face width 9.3 mm, Ø13.5 mm bore — 1953
Spur gear, module 2.5 mm, 31 teeth (pitch Ø77.5 mm), face width 9.3 mm, Ø13.5 mm bore.

Units: mm. Procedural reference geometry. Verify dimensions, tolerances and suitability before manufacturing.
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