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What belt drive trans is this?
Posted: Sun Jan 26, 2014 10:18 pm
by Meakz1973
Hi All,
Can you please help identify this belt drive transmission that came with a Grapite RC10 I picked up? There is no branding at all on it.
Thanks
Re: What belt drive trans is this?
Posted: Sun Jan 26, 2014 10:22 pm
by GoMachV
A&L Lethal Weapon
Re: What belt drive trans is this?
Posted: Sun Jan 26, 2014 10:43 pm
by Meakz1973
Thanks for that.
Looks like they're still available to buy from A & L?
http://vintageteamaandl.com/lethalweapon.htm
Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 12:06 am
by RC10th
Is there any advantage to belt drive transmissions aside from being quieter? Although cool they seem like a power robbing device to me. What am I missing?
Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 6:51 am
by adam lancia
Once they're broken in they're pretty good, but still less efficient than a 3 gear transmission. That being said, with brushless motors and LiPo's, it's become a non-issue.
Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 8:33 am
by Phin
Belts are more efficient than gears but are more expensive and add a little more complexity in design because belts are finicky about getting the tension right.
They're still used often in modern RC cars running brushless + lipo......just more so in on-road touring cars than in off-road buggies.
Plus, manufacturers don't really go out on limbs and make zany aftermarket parts for RCs anymore.

Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 10:27 am
by DMAT
zany aftermarket parts.....what is a kit to convert a 1/10 4x4 slash into a 1/8 buggy called then? or is this a thing now?
Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 1:07 pm
by Bottom Feeder
Phin wrote:Plus, manufacturers don't really go out on limbs and make zany aftermarket parts for RCs anymore.

Ah, the good old days.

Re: What belt drive trans is this?
Posted: Mon Jan 27, 2014 2:38 pm
by fredswain
Phin wrote:Belts are more efficient than gears but are more expensive and add a little more complexity in design because belts are finicky about getting the tension right.
They're still used often in modern RC cars running brushless + lipo......just more so in on-road touring cars than in off-road buggies.
Plus, manufacturers don't really go out on limbs and make zany aftermarket parts for RCs anymore.

I used to design belt and chain systems up to 2200 hp for mud pump applications in oil drilling and I can tell you with absolute certainty that a belt is not more efficient than a gear. The old belt drives were however an improvement from the original 6 gear setup and also offered an easy way to get a slipper installed. Once the stealth boxes came out, belt and chain drive went away pretty quickly. I'm shocked to see belts still used in 4wd and onroad. I did love belt drives though! I still have my Bullet Powerglide.