Could you just use a light oil in the gear diff to act similar to the ball diff with a lot less maintenance? You'd just miss out on the ability to adjust tightness.
You can. Now, ball diffs are consistent from start to finish of the differential rotation. Fluid filled diffs will increase resistance as speed differential increases... but most of us could probably not tell the difference. So, yes... sealed fluid filled is far easier to upkeep. I actually swapped my diff. in my Xray X1 for this reason and never looked back.
its posible, im use grease in gear diff on wet astro on a xray xb2 to gain traction if its wet or damp condition and also gains alot of turn in to corners.
Okay so if i understand this correctly. Empty full open gear diff will have same effect like ball diff it just will be tiny bit slower in reactions right? Without fluid it should have same properties as ball diff.
The way you can control the ball diff. by tightening it you can control an open diff. by using back, red, or naval grease. The delay will be different. I would not say the same due to how a gear diff. builds up resistance, but similar in a sense (the way I am interpreting your description).
@@telecomandorc hmmm. Thanks for explaining it to me. Im racing offroad RC cars over 10 years but i never really understood why anyone would want to use ball diff. Gear diff always felt same if not superior to it for me.
@@telecomandorc great video, very informative! Can I achieve a similar feel to that if the ball diff with a gear diff by using low viscosity oil/grease? 2k cst?
Good point. I would love to see a helical diff. Not sure if they would handle the stress at that scale. Maybe they just assume diff fluid is good enough.
Could you just use a light oil in the gear diff to act similar to the ball diff with a lot less maintenance? You'd just miss out on the ability to adjust tightness.
You can. Now, ball diffs are consistent from start to finish of the differential rotation. Fluid filled diffs will increase resistance as speed differential increases... but most of us could probably not tell the difference. So, yes... sealed fluid filled is far easier to upkeep. I actually swapped my diff. in my Xray X1 for this reason and never looked back.
its posible, im use grease in gear diff on wet astro on a xray xb2 to gain traction if its wet or damp condition and also gains alot of turn in to corners.
awesome explanation!
Thank you.
Okay so if i understand this correctly. Empty full open gear diff will have same effect like ball diff it just will be tiny bit slower in reactions right?
Without fluid it should have same properties as ball diff.
The way you can control the ball diff. by tightening it you can control an open diff. by using back, red, or naval grease. The delay will be different. I would not say the same due to how a gear diff. builds up resistance, but similar in a sense (the way I am interpreting your description).
@@telecomandorc hmmm.
Thanks for explaining it to me.
Im racing offroad RC cars over 10 years but i never really understood why anyone would want to use ball diff. Gear diff always felt same if not superior to it for me.
@@adamike9990 You are welcome. And to be honest, gear diffs are easier... less rebuilding.
@@telecomandorc great video, very informative! Can I achieve a similar feel to that if the ball diff with a gear diff by using low viscosity oil/grease? 2k cst?
@@chuchugaming1752 Not sure which would be best. Probably the oil. Black grease gets tacky over time. It would be similar.
Funny how no manufacturers (even aftermarket) have made a clutched diff or worm gear (torque sensing) diff like full-scale vehicles have.
Good point. I would love to see a helical diff. Not sure if they would handle the stress at that scale. Maybe they just assume diff fluid is good enough.
look up losi tsd diff
@@johntuffy5721 Can't find it.
xray active diffs.
Spider or torsen diffs exist in nitro 1/8 buggies.