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Shadow wrote:would a chain drive require less engineering?
obviously it wouldnt be good at speed
but if its just for a buggy, perhaps it wouldnt matter
i have seen chain drive on rollers and other heavy equipment, and they dont look very technical at all, no where near as technical as that picture above.
If you could use the chain from a chain drive tcase and machine up a couple of new drive gears for it, it may be a possibility. Should be strong enough, and the speed shouldn't worry it too much. Only minor problem would be keeping everything cool, may need a small electric pump wired up to circ oil to a oil cooler.
Don't know how much chains are out of other tcases but the ones in the rover tcases are worth $1500 ish secondhand last time I priced one.
Tom
I reckon patrol ones would be cheap enough as well as plenty strong enough for a ~2:1 reduction, even if you bought a second hand tase for the chain alone (should be a few around from ppl that are doing double tcases). They use one of them to handle the torque to two front wheels, so a 2:1 reduction shouldn't stress them too much on each end of an axle.
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
Shadow wrote:would a chain drive require less engineering?
obviously it wouldnt be good at speed
but if its just for a buggy, perhaps it wouldnt matter
i have seen chain drive on rollers and other heavy equipment, and they dont look very technical at all, no where near as technical as that picture above.
If you could use the chain from a chain drive tcase and machine up a couple of new drive gears for it, it may be a possibility. Should be strong enough, and the speed shouldn't worry it too much. Only minor problem would be keeping everything cool, may need a small electric pump wired up to circ oil to a oil cooler.
was thinking just having oil covering about 50% of the bottom gear, the chain would throw the opil around like a washing machine
I would suggest that getting gears machined would be cheaper and simpler in the long run than chains and getting the gears niharded would be ok for strength and wear.....heat wise would prolly need to add an external cooler. the main thing would be keeping the strength on the outer casing but it would be fairly cheap to pattern up the case and get cast in SG iron for the added strength thenm if you have all the machinery you would be ok but I would be wanting CNC mills etc
If the above post did not offend you in any way please PM me so I can try harder!!
v840 wrote:
[Not a shot at Tonka] It's like saying, hell I've got two nuts, I may as well cut one of them off for the hell of it. I ain't using it.[/NAS@T] It's ridiculous!
Shadow wrote:would a chain drive require less engineering?
obviously it wouldnt be good at speed
but if its just for a buggy, perhaps it wouldnt matter
i have seen chain drive on rollers and other heavy equipment, and they dont look very technical at all, no where near as technical as that picture above.
If you could use the chain from a chain drive tcase and machine up a couple of new drive gears for it, it may be a possibility. Should be strong enough, and the speed shouldn't worry it too much. Only minor problem would be keeping everything cool, may need a small electric pump wired up to circ oil to a oil cooler.
Don't know how much chains are out of other tcases but the ones in the rover tcases are worth $1500 ish secondhand last time I priced one.
Tom
I reckon patrol ones would be cheap enough as well as plenty strong enough for a ~2:1 reduction, even if you bought a second hand tase for the chain alone (should be a few around from ppl that are doing double tcases). They use one of them to handle the torque to two front wheels, so a 2:1 reduction shouldn't stress them too much on each end of an axle.
the transfer case chain has far less torque as its speed is higher before the diff pinion. every time you halve your rpm you double your torque
that said you can use the nissan chain section as the case breaks into 3. run the axle to what was formerly the front drive, then the wheels can bolt onto a stub axle supported by a bearing either side of the chain. either make steel support frames like a dual case crossmember or build a new housing i will look on friday as i have a split nissan case at work
ADHD Racing would like to thank Mrs Bru @ Sunshine Coast Developmental Physiotherapy - www.scdphysio.com.au , Ryano @ Fourbys www.generaltire.com.au Blitzkrieg Motorsport
Shadow wrote:would a chain drive require less engineering?
obviously it wouldnt be good at speed
but if its just for a buggy, perhaps it wouldnt matter
i have seen chain drive on rollers and other heavy equipment, and they dont look very technical at all, no where near as technical as that picture above.
If you could use the chain from a chain drive tcase and machine up a couple of new drive gears for it, it may be a possibility. Should be strong enough, and the speed shouldn't worry it too much. Only minor problem would be keeping everything cool, may need a small electric pump wired up to circ oil to a oil cooler.
Don't know how much chains are out of other tcases but the ones in the rover tcases are worth $1500 ish secondhand last time I priced one.
Tom
I reckon patrol ones would be cheap enough as well as plenty strong enough for a ~2:1 reduction, even if you bought a second hand tase for the chain alone (should be a few around from ppl that are doing double tcases). They use one of them to handle the torque to two front wheels, so a 2:1 reduction shouldn't stress them too much on each end of an axle.
the transfer case chain has far less torque as its speed is higher before the diff pinion. every time you halve your rpm you double your torque
that said you can use the nissan chain section as the case breaks into 3. run the axle to what was formerly the front drive, then the wheels can bolt onto a stub axle supported by a bearing either side of the chain. either make steel support frames like a dual case crossmember or build a new housing i will look on friday as i have a split nissan case at work
Forgot about that bit
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
