Main gear 720

[Kavala]

Can anyone tell what is the dif on this two main gears?. One have part no PV1543 and the other PV1631.Looks like the same. Is the orig first number of less quality?Is it ok to use?

[Island Heli]

Hello
PV1543 is a standed moulded main gear, Pv1631 is a CNC cut gear. Both of these gears are 111t. There is also a PV0599 which is also a CNC cut gear but 115t....

[Kavala]

Tanks Island Heli. CNC means?.Is it nylon?. Better quality?

[Island Heli]

The PV1543 is the standard gear that was supplied with your kit...It is moulded.
CNC stands for computer (or computerized) numerical control. So the gears are cut using a CNC milling machine from a solid mass which makes them more stronger and more accurate.

[Kavala]

Got it. Final question, you mentioned PV0599 this 115 T for E 800 but same size and can be used on the 720?.

[Island Heli]

The frame cut outs for the e720 & e 820 are both 126mm, The 111t gear is 120mm and the 115t is 123mm , The e720 & e820 both uses the 111t as standard and both can use the 115t as a option....

[Kavala]

Noted with tanks Island Heli

[Hawk208]

My G4 kit actually came with the CNC main gear.
Maybe it's a mistake made by the factory.