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what ratio gearbox is standard in heng long leopard 2
Posted: Wed Mar 12, 2014 2:09 pm
by huskydog
hi there, anyone know what ratio gearbox is standard in the heng long leopard 2. it appears to be a cheap zinc type metal, was looking at perhaps swapping it out for a better one but just wanted to know the ratio of the standard one. my tank will probably not do a great deal of mileage , but be more of a show piece in the end.
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Wed Mar 12, 2014 2:58 pm
by ALPHA
huskydog wrote:hi there, anyone know what ratio gearbox is standard in the heng long leopard 2. it appears to be a cheap zinc type metal, was looking at perhaps swapping it out for a better one but just wanted to know the ratio of the standard one. my tank will probably not do a great deal of mileage , but be more of a show piece in the end.
Greetings Husky Dog... usually the HL gearboxes are 2:1 in ratio...some of the newer models have 3:1....and there is really nothing wrong with the zinc gearboxes... knock on wood ...none of mine have failed yet...The most important thing is to break them in properly...by lubing them with pure silicon grease... read the labels...if it's a petroleum based lubricant ... the zinc gears will deteriorate ... the metal is porous .. the petroleum will seep into the metal...causing it to break down in time..silicon is more friendly
It's the same as brass gears
Good Luck huskydog
ALPHA
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Re: what ratio gearbox is standard in heng long leopard 2
Posted: Wed Mar 12, 2014 3:04 pm
by 971wright
Hi If you want to upgrade go for the Steel gearboxes and speed 400 motors on a standard Heng Long board. If you upgrade the electrics you can fit 480 motors . These gears and motors should give you a good turn of speed.
regards pete
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Wed Mar 12, 2014 5:59 pm
by Fishtank
huskydog wrote:hi there, anyone know what ratio gearbox is standard in the heng long leopard 2. it appears to be a cheap zinc type metal, was looking at perhaps swapping it out for a better one but just wanted to know the ratio of the standard one. my tank will probably not do a great deal of mileage , but be more of a show piece in the end.
Im pretty sure they are 2:1 as the leopard is a bit of a speed mechant compared to the older WW1 and WW2 models
Being a modern tank it should be faster therefore using less gear reduction.
As for ZINC gears depends on who built them. Some last however i destroyed 2 sets
I would recommend the black steel versions from Taigen.
Also this tank uses same gears as the walker bulldog, the Pershing and also the King tiger to name but a few hope this helps
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Thu Mar 13, 2014 1:26 am
by huskydog
thanks for the speedy reply folks. at what points are the gearbox ratios measured from 3:1 =3turns motor to one turn output shaft? etc.
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Thu Mar 13, 2014 8:43 am
by Fishtank
huskydog wrote:thanks for the speedy reply folks. at what points are the gearbox ratios measured from 3:1 =3turns motor to one turn output shaft? etc.
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Fri Mar 14, 2014 12:38 pm
by huskydog
well still cant get a 3 to 1 ratio on my gearbox. turned the gear that the motor drives around 8 times and tank drive sprocket turns one time which would make 8 to 1. what gear to what gear is the ratio worked out from?
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Fri Mar 14, 2014 12:42 pm
by huskydog
or is it worked out teeth on the motor pinion to first gear in the gearbox?
Re: what ratio gearbox is standard in heng long leopard 2
Posted: Fri Mar 14, 2014 1:04 pm
by Tankbear
Hi Huskydog
Look in the download section about half way down there is a gearbox calculator in excel format that will help you.
3:1 is a general term for 3 times lower ratio than the standard version, in reality it's about 2.5:1
Ian.