27T Mod1 Safe-D5 Pinion Gear (ARA311057)

Engineered for RC drivetrains, this 27T Mod1 Safe-D5 Pinion Gear is a rugged steel pinion designed to transfer motor torque to the spur gear on a 5mm shaft. The wide tooth profile delivers smooth engagement, while the D-shaped bore locks to the shaft so drive and braking stay reliable even if the set screw backs out.

Includes a 27T Mod1 Safe-D Pinion Gear along with an M4 x 4mm set screw and a 3.2mm E-clip for secure retention. The pinion is designed for a 5mm motor shaft with a threaded set-screw hole to ensure a solid grip, and its steel construction is built for long-lasting durability in extreme RC conditions, helping maintain precise gear mesh and dependable power delivery.