Trinity Ultra Lightweight Aluminum Pinion Gear, Thin, 48 Pitch,

Ultra Lightweight Precision Machined 48 Pitch Aluminum Pinion Gears for On-Road and Off-Road Racing. Meshes with all 48 pitch spur gears. Titanium Nitride Hard Anodized for longer life. Uses 3mm set screw (included). Standard 540 Motor Shaft Size. Size etched on pinion gear.

SPECS:

Titanium Nitride Hard Anodized for Long Life and Less Resistance
Precision Machined Ultra Thin Tooth Profile (Less Than 2.5mm Wide)
Large Multi Hole Cutouts to Reduce Weight
For 1/8" Shaft (3.175mm) Motors
3mm set screw included
Size etched on each pinion