小齿轮3毫米/ 0.5M 15T（1个）
just nomal 15t pinion gear.Works great on Alpha 250 shaft for a Esky Big Outdoor Lama brushless/boardless conversion.
Head speed just a little too fast with this 15T pinion. Also purchased 14 and 13T versions to adapt headspeed to different blades and loads- material: brass
- tooth pitch: 0.5M - standard in 450 helis
(with constraints, may also work with 48DP, 5% difference)
- fixing: by grub screw
(flattening shaft by multi-tool grinder helps)
Pay attention to correct clearance of gear !