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Two-wheelers with belt drives

Question asked by zaveri in #Coffee Room on Jul 22, 2012
zaveri
zaveri · Jul 22, 2012
Rank A3 - PRO
As we all know that motor cycles make use of chain drives as means of transmitting power from engine to rear wheel.

Now i was wondering what would happen if this chain-sprocket thing was to be replaced by belt and pulley system.

it will have its own advantages : it will be lighter, noise levels will be reduced, and it will make the vehicle designer's job easier.

Does it have any advantages though ? is this feasible ? Posted in: #Coffee Room
mechky
mechky · Jul 22, 2012
Rank C2 - EXPERT
No, belts can't be used due to following reasons:

- Belts have much less strength than chains
- Susceptible to slip, speed ratio doesn't remains constant
- Periodic retensioning is required
- Upper limit on power and speed
- Belts deteriorate on exposure to lubricants
- Limited life and need periodic replacement
zaveri
zaveri · Jul 23, 2012
Rank A3 - PRO
mechky
No, belts can't be used due to following reasons:

- Upper limit on power and speed
-


can you elaborate on this ?
Ramani Aswath
Ramani Aswath · Jul 23, 2012
Rank A1 - PRO
Belt drives depend on friction. Things may happen to reduce this at a critical moment leading to accidents. mechky's elaboration is explicit.
mechky
mechky · Jul 24, 2012
Rank C2 - EXPERT
zaveri
can you elaborate on this ?
speed limit is about 2000m/min and power limit is about 60kW
zm-i
zm-i · Jul 26, 2012
Rank D1 - MASTER
Some cars use timing belts. Some motorcycles also use belts. And there seems to be no problem.
Please correct me if I am wrong. 😕
zaveri
zaveri · Jul 27, 2012
Rank A3 - PRO
zm-i
Some cars use timing belts. Some motorcycles also use belts. And there seems to be no problem.
Please correct me if I am wrong. 😕
Which are those bikes
zm-i
zm-i · Jul 27, 2012
Rank D1 - MASTER

Aren't those belts?😕
zaveri
zaveri · Jul 28, 2012
Rank A3 - PRO
zm-i

Aren't those belts?😕
Yes those are belts. those are ribbed belts. they are basically used for timing. they seem to make good substitutes for chain drives in those harley davidsons .
zm-i
zm-i · Jul 29, 2012
Rank D1 - MASTER
Yes those are belts. those are ribbed belts. they are basically used for timing. they seem to make good substitutes for chain drives in those harley davidsons .
So belts can be used, right?
zaveri
zaveri · Jul 31, 2012
Rank A3 - PRO
zm-i
So belts can be used, right?

ofcourse. as you can see that they are already being used.
zm-i
zm-i · Jul 31, 2012
Rank D1 - MASTER
Yes. I do recognize that zaveri. 😀 However, the first respond to your topic is a "no". So, I wonder if what mechky says is true.

No, belts can't be used due to following reasons:

- Belts have much less strength than chains
- Susceptible to slip, speed ratio doesn't remains constant
- Periodic retensioning is required
- Upper limit on power and speed
- Belts deteriorate on exposure to lubricants
- Limited life and need periodic replacement
I never really know the reason why, but I know that many have substituted chains with belts (...and of course they change the sprocket too).
zaveri
zaveri · Jul 31, 2012
Rank A3 - PRO
zm-i
Yes. I do recognize that zaveri. 😀 However, the first respond to your topic is a "no". So, I wonder if what mechky says is true.



I never really know the reason why, but I know that many have substituted chains with belts (...and of course they change the sprocket too).
i first said no, because mechky gave strong reasons. But now since belt drives are implemented and the bikes are running normally, then there is no point in disagreeing
mechky
mechky · Aug 1, 2012
Rank C2 - EXPERT
zm-i
Yes. I do recognize that zaveri. 😀 However, the first respond to your topic is a "no". So, I wonder if what mechky says is true.



I never really know the reason why, but I know that many have substituted chains with belts (...and of course they change the sprocket too).
Yes, toothed belts similar to timing belts are appropriate.

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