most durable input gear cups for bashing?

Dan B.

Area man
Lifetime Premium!
Premium Member
ArrmaForum Fan
Rig of the Month Winner
Build Thread Contributor
Messages
1,836
Reaction score
3,927
Location
Southern Vermont
Arrma RC's
  1. Granite
  2. Mojave EXB
  3. Outcast 6s
  4. Typhon 6s
One can’t just say “stronger.” It comes down to different properties like the graph showed above. FWIW, David at Scorched says his titanium drive cups are “stronger and lighter” than steel, but that they wear more quickly and will be replaced more often.
EDIT:
He bases this, quite honestly, on the fact that the hardened steel drive pins lead to premature grooving in the titanium cups. This is the same reason that Formula 1 teams, where cost is no object (and everyone else for that matter) don’t use titanium gears in transmissions. But in non impact applications, such as the use of titanium for crankshafts, the benefits of the strength and weight savings of Ti can’t really be beat. It just depends on the application. In most scenarios Ti is used merely to save weight by replacing steel in appropriate situations, not because it is stronger than hardened steels, which it is not.
FWIW, I once entertained the notion of replacing all non-stretching fasteners in my Ducati with Ti. I was shocked that just replacing external steel screws in my bike would save almost 5KG! NCR made a kit. They also made an internal engine kit including crankshaft, valves, etc. that saved an additional 7KG. When I saw the price I decided it made infinitely more sense to just eat a lot more salads and buy a very nice used car (or brand new Hyundai) instead.
 
Last edited:

justin080

Well-Known Member
Messages
104
Reaction score
70
Location
Germany, Meppen
Arrma RC's
  1. Limitless
  2. Typhon 6s
  3. Typhon TLR
S

I‘d definately install Scorched titinium skid if I had a Limitless (Or Infraction).
I’d do this 👇 all day long (and probably changing tires🤣).
Formula 1 Racing GIF by Aston Martin F1 Team
😏

20230121_161830.jpg
 

Tex Koder

2D , 3D Not a problem. I'll take that Challenge.
Lifetime Premium!
Premium Member
ArrmaForum Fan
Build Thread Contributor
Messages
3,818
Reaction score
8,546
Location
Dallas, TX (USA)
Arrma RC's
  1. Granite
  2. Infraction
  3. Kraton 6s
  4. Mojave
  5. Senton 3s
  6. Vendetta
No trolling allowed here .it's not nice ..

I can't explain.how or why but we had a hard time bending the titanium at work.i work for the government Navy.we build Nuclear submarines..I can not say what type it is or anything else that is policy but I would imagine the stock we get is not like what you buy in your local home Depot .if they even carry titanium..listen I understand videos and numbers proove that steel is stronger but what I see at work makes me think otherwise.
Yes too many numbers can make someone head explode 🤣🤣🤣

Must be those extra fresh tempered titanium plates for them fancy fast attack Uboats you be playing with then...
Not those leftover peasant-grade Ti stock from TaylorMade golf clubs , I'm guessing.
 

King blitz

Premium Member!
Premium Member
Build Thread Contributor
Messages
1,521
Reaction score
1,585
Location
Rhode island
Arrma RC's
  1. BigRock 4x4
  2. Outcast 6s
United states does not build u-boats.that would be the Germans..united states builds the best nuclear subs.and I don't play with them .not a toy.i take my work seriously.again I can not explain what we do or see at work.all jokes aside I responded to this thread with the knowledge and experience from what I have seen at work.we use state of the art technology and materials.like some have never seen .I'm not a engineer nor do I make the material.so I can't say what kind of titanium we use or what's in it.ill leave it at that note.as for golf clubs lol never even held one in my hand ..I rather hold a nice basketball or soccer ball or football before I ever even attempt swinging a golf club..maybey when I'm 60 I'll try.
 

Tex Koder

2D , 3D Not a problem. I'll take that Challenge.
Lifetime Premium!
Premium Member
ArrmaForum Fan
Build Thread Contributor
Messages
3,818
Reaction score
8,546
Location
Dallas, TX (USA)
Arrma RC's
  1. Granite
  2. Infraction
  3. Kraton 6s
  4. Mojave
  5. Senton 3s
  6. Vendetta
United states does not build u-boats.that would be the Germans..united states builds the best nuclear subs.and I don't play with them .not a toy.i take my work seriously.again I can not explain what we do or see at work.all jokes aside I responded to this thread with the knowledge and experience from what I have seen at work.we use state of the art technology and materials.like some have never seen .I'm not a engineer nor do I make the material.so I can't say what kind of titanium we use or what's in it.ill leave it at that note.as for golf clubs lol never even held one in my hand ..I rather hold a nice basketball or soccer ball or football before I ever even attempt swinging a golf club..maybey when I'm 60 I'll try.

The secret sauce in them titanium...
They will Never divulge the percentage of the mixture or processes. 😎
 

justin080

Well-Known Member
Messages
104
Reaction score
70
Location
Germany, Meppen
Arrma RC's
  1. Limitless
  2. Typhon 6s
  3. Typhon TLR
I use these,torture tested no issues,can handle whatever ya can throw at them,not even worn.big 2.5mm grub screw

View attachment 271648
100s of hits,fast as 162mph.been through many titanium an steel shafts.car destroys pins on all shafts...have taken 15000w or 20hp hits,
bro, do u know if these will fit combined on the limitless v1 spool shaft?
 

justin080

Well-Known Member
Messages
104
Reaction score
70
Location
Germany, Meppen
Arrma RC's
  1. Limitless
  2. Typhon 6s
  3. Typhon TLR
I imagine they would,instead of paying 30ish $$ for 2 of those I'd just buy 1 of these spools from ramjam...Great spool for cheap

View attachment 272818
bro the shipping is to expensive for that. i am fine with stock shaft.
also i don't think titanium is any good for speed bashing.
just for speedruns (less rotating mass)
but it will NEVER be the same hardend as the hardend steel cups.
 

K-BASH

Well-Known Member
Build Thread Contributor
Messages
5,959
Reaction score
9,811
Location
ST.LOUIS
Arrma RC's
  1. BigRock 4x4
  2. Mojave
  3. Notorious
  4. Senton 6s
  5. Senton 3s
  6. Typhon 6s
bro the shipping is to expensive for that. i am fine with stock shaft.
also i don't think titanium is any good for speed bashing.
just for speedruns (less rotating mass)
but it will NEVER be the same hardend as the hardend steel cups.
Shipping is free,these are WAY better than stock..8mm shaft,spacers,ceramic bearings..bearings are 12$ by themselves.much better for bashing,speed ,everything..2.5mm grubs that won't wobble or come off like cheap stock crap..cost less than stock junk...have a spur,or cup come off an smack a curb with stock
Here's a 8mm shaft with 8mm cups vs stock arrma with 5mm cups.stock shafts have 1 little flat spot for spur,8mm shafts have flat spot entire length.8mm cups spin tru..huge upgrade

16746148963324005918182756998395.jpg
 
Last edited:

justin080

Well-Known Member
Messages
104
Reaction score
70
Location
Germany, Meppen
Arrma RC's
  1. Limitless
  2. Typhon 6s
  3. Typhon TLR
I
Shipping is free,these are WAY better than stock..8mm shaft,spacers,ceramic bearings..bearings are 12$ by themselves.much better for bashing,speed ,everything..2.5mm grubs that won't wobble or come off like cheap stock crap..cost less than stock junk...have a spur,or cup come off an smack a curb with stock
Here's a 8mm shaft with 8mm cups vs stock arrma with 5mm cups.stock shafts have 1 little flat spot for spur,8mm shafts have flat spot entire length.8mm cups spin tru..huge upgrade

View attachment 272870
I am based im germany.
Never had any issue with loosen spur/cup and always only use blue locktite.
I just clean everything with brake cleaner and let it dry 24 hours.
Never loose any screw and can open screw easily without burn the parts before😏
Shipping is free,these are WAY better than stock..8mm shaft,spacers,ceramic bearings..bearings are 12$ by themselves.much better for bashing,speed ,everything..2.5mm grubs that won't wobble or come off like cheap stock crap..cost less than stock junk...have a spur,or cup come off an smack a curb with stock
Here's a 8mm shaft with 8mm cups vs stock arrma with 5mm cups.stock shafts have 1 little flat spot for spur,8mm shafts have flat spot entire length.8mm cups spin tru..huge upgrade

View attachment 272870
Titanium bearings don't last long, specially not for speed bashing lol
 

ross_jsy

Well-Known Member
Messages
154
Reaction score
279
Location
Jersey, Channel Islands
Arrma RC's
  1. Granite Mega
  2. Outcast 6s
  3. Talion
even the cost of titanium says it all .it costs more for a reason .

It costs more because compared to steel, it is relatively hard to process from an ore to a metal and comprises 0.5% of the earth's crust compared to 5% for iron ore.

Titanium is a fantastic material in a specific set of circumstances. Whilst he goes on a bit, the bloke from Promodeler has an excellent piece on titanium servo gears that explains the pros and cons of the material pretty well:

https://www.promodeler.com/askJohn/Is-titanium-the-best-for-gears
 

King blitz

Premium Member!
Premium Member
Build Thread Contributor
Messages
1,521
Reaction score
1,585
Location
Rhode island
Arrma RC's
  1. BigRock 4x4
  2. Outcast 6s
I

I am based im germany.
Never had any issue with loosen spur/cup and always only use blue locktite.
I just clean everything with brake cleaner and let it dry 24 hours.
Never loose any screw and can open screw easily without burn the parts before😏

Titanium bearings don't last long, specially not for speed bashing lol
Gonna have to agree with what what is said here
It costs more because compared to steel, it is relatively hard to process from an ore to a metal and comprises 0.5% of the earth's crust compared to 5% for iron ore.

Titanium is a fantastic material in a specific set of circumstances. Whilst he goes on a bit, the bloke from Promodeler has an excellent piece on titanium servo gears that explains the pros and cons of the material pretty well:

https://www.promodeler.com/askJohn/Is-titanium-the-best-for-gears
Don't believe I needed to be quoted .I did not state the reason why titanium costs more than steel because any one that has access to the web can easily view the easy answer..the answer you provided is correct.good job👍
 
Last edited:

Dan B.

Area man
Lifetime Premium!
Premium Member
ArrmaForum Fan
Rig of the Month Winner
Build Thread Contributor
Messages
1,836
Reaction score
3,927
Location
Southern Vermont
Arrma RC's
  1. Granite
  2. Mojave EXB
  3. Outcast 6s
  4. Typhon 6s
I personally don't have any rigs with them but at my lhs plenty of guys that use them and I hear no complaints.if I do I'll post what they say
Stay with high grade standard steel bearings (ABEC 5 or better) or upgrade to ceramic hybrid bearing sets. Titanium has no benefit, especially over ceramic hybrids. Most agree that Ti is not a suitable material for bearings unless they operate under water.
 

King blitz

Premium Member!
Premium Member
Build Thread Contributor
Messages
1,521
Reaction score
1,585
Location
Rhode island
Arrma RC's
  1. BigRock 4x4
  2. Outcast 6s
Stay with high grade standard steel bearings (ABEC 5 or better) or upgrade to ceramic hybrid bearing sets. Titanium has no benefit, especially over ceramic hybrids. Most agree that Ti is not a suitable material for bearings unless they operate under water.
Thank you I'll keep that in mind .for now I'm actually happy with stock arrma bearings.no issues yet .I maintain them well .I also believe the reason why I have good luck with my stock ones is because I only do speed passes and never run on off road .so dirt or water does not get in them that easy ..they do get dusty but I clean mine after every run ..kinda like doing it ..🤟😁👍
 

Dan B.

Area man
Lifetime Premium!
Premium Member
ArrmaForum Fan
Rig of the Month Winner
Build Thread Contributor
Messages
1,836
Reaction score
3,927
Location
Southern Vermont
Arrma RC's
  1. Granite
  2. Mojave EXB
  3. Outcast 6s
  4. Typhon 6s
Thank you I'll keep that in mind .for now I'm actually happy with stock arrma bearings.no issues yet .I maintain them well .I also believe the reason why I have good luck with my stock ones is because I only do speed passes and never run on off road .so dirt or water does not get in them that easy ..they do get dusty but I clean mine after every run ..kinda like doing it ..🤟😁👍
Perfect. Even cheap bearings can last a long time if properly maintained. I’m not as good at it as I should be with my off road bashers. So I end up replacing them a couple times a year.
 

slick2500

If it ain't broke, you're doing it wrong.
Community Leader
Premium Member
ArrmaForum Fan
Excellence Award
Build Thread Contributor
Messages
22,897
Reaction score
31,846
Location
Rapid City, SD
Arrma RC's
  1. Fireteam
  2. Kraton EXB
  3. Outcast 6s
  4. Senton 3s
  5. Typhon 3s
No trolling allowed here .it's not nice ..

I can't explain.how or why but we had a hard time bending the titanium at work.i work for the government Navy.we build Nuclear submarines..I can not say what type it is or anything else that is policy but I would imagine the stock we get is not like what you buy in your local home Depot .if they even carry titanium..listen I understand videos and numbers proove that steel is stronger but what I see at work makes me think otherwise.
Yes too many numbers can make someone head explode 🤣🤣🤣
I am willing to bet that the titanium used by the US military is of much higher standard than anything available commercially. That being said we have to go by the listed numbers and videos to show what commercially available titanium is going to be like compared to commercially available steel which our rc parts are going to be made from because I highly doubt any of these guys are going to be using US military grade titanium.
 
Top