Specifications

1 Gear Ratio: 1.0:1;
2 Ball Bearings: 2+1BB
3 Outer Diameter: about 8.6cm;

FLY SERIES	SIZE:Φ×D×L(mm)	Net weight
FC512-9/10(2+1BB)	Φ102×62×27	225g
FC510-7/8(2+1BB)	Φ95×56×25	176g
FC509-5/6(2+1BB)	Φ85×46×23	135g
FC408-3/4(2+1BB)	Φ75×40×21	125g
FC408-1/2(2+1BB)	Φ69×40×18	120g
FC050(2+1BB)	Φ60×32×18	105g
FC030(2+1BB)	Φ53×30×18	75g
FC020(2+1BB)	Φ47×27×18	74g
FN209-5/6(0BB)	Φ85×23×20	125g
FN208-3/4(0BB)	Φ75×23×20	110g

with box 24PCS

Description:
Gear Ratio: 1.0:1;
Ball Bearings: 2+1BB
Outer Diameter:

Material: aluminium.