31T Mod1 Safe-D5 Pinion Gear (ARA311136)

The Mod1 Safe-D 31-Tooth Pinion Gear is a rugged steel pinion designed for 5mm motor shafts in RC vehicles, delivering reliable power transfer and smooth engagement under demanding driving conditions. Its D-shaped bore helps lock onto the shaft and prevents drive loss if the set screw backs out.

Included with the gear are the essential installation parts—a small M4 set screw and an E-clip—to secure the pinion on the shaft. The gear features a wide tooth profile for quiet, precise meshing and durable steel construction for long-lasting performance in extreme RC conditions, making it a practical addition to any RC toolkit.