Bearing question

bmoscato

Premium Member!
Premium Member
Military Veteran
Messages
137
Reaction score
141
Location
NY
Arrma RC's
  1. Infraction 4x4
Is there any benefit to running metal over a rubber seal when buying bearing kits? I usually just purchase bearings with rubber seals unless it was on a nitro engine where I'd choose metal seals.

Also, is there any situation on the 3S Vendetta or Infraction where you would choose ceramic over steel?
 
Messages
3,120
Reaction score
3,447
Arrma RC's
  1. Felony
  2. Kraton EXB
  3. Senton 3s
Is there any benefit to running metal over a rubber seal when buying bearing kits? I usually just purchase bearings with rubber seals unless it was on a nitro engine where I'd choose metal seals.

Also, is there any situation on the 3S Vendetta or Infraction where you would choose ceramic over steel?
Yea if your speed running ceramic is where its at, they require more maintenance.. same goes for the metal shielded, hard to keep them clean and they run hot!? Ceramic is better for like 100+ mph rigs to get any real benefit from them!! 😎
 

LicketySplit

Space Shuttle Door Gunner
Premium Member
Build Thread Contributor
Messages
1,406
Reaction score
2,845
Location
Miami, FL
Arrma RC's
  1. Limitless
  2. Outcast 6s
I only run ceramic on my speed run cars. And the only place I use them is on the spool. They can’t handle the abuse so they actually aren’t the best for speed running. Your money will be best spent elsewhere. Just get aftermarket bearings from Avid, Jim’s, TRB, etc and you’ll be happy.
 
Messages
3,120
Reaction score
3,447
Arrma RC's
  1. Felony
  2. Kraton EXB
  3. Senton 3s
I only run ceramic on my speed run cars. And the only place I use them is on the spool. They can’t handle the abuse so they actually aren’t the best for speed running. Your money will be best spent elsewhere. Just get aftermarket bearings from Avid, Jim’s, TRB, etc and you’ll be happy.
Really.. I was under the assumption that, thats where they work best!? Makes sense though!! 🤔
 

LicketySplit

Space Shuttle Door Gunner
Premium Member
Build Thread Contributor
Messages
1,406
Reaction score
2,845
Location
Miami, FL
Arrma RC's
  1. Limitless
  2. Outcast 6s
Really.. I was under the assumption that, thats where they work best!? Makes sense though!! 🤔
That’s what I thought at first. Then I started asking around and some of the usual suspects around here told me otherwise. For example. Input bearings are replaced constantly. You really aren’t gaining much by using ceramic there so it’s better to spend $2 on a new bearing. The juice isn’t worth the squeeze.
 

MrTitanium

Speak softly and carry a big stick.
Messages
914
Reaction score
1,540
Location
Canada
Arrma RC's
  1. BigRock
  2. Kraton EXB
  3. Nero
Not a huge difference between rubber and metal shielded bearings. Rubber seals better but with slight more drag. Vice versa for metal shielded units. If you’re running in dirt, stay away away from ceramic in the drivetrain. I run Boca ceramic only in my nitro engines.
 

LicketySplit

Space Shuttle Door Gunner
Premium Member
Build Thread Contributor
Messages
1,406
Reaction score
2,845
Location
Miami, FL
Arrma RC's
  1. Limitless
  2. Outcast 6s
Not a huge difference between rubber and metal shielded bearings. Rubber seals better but with slight more drag. Vice versa for metal shielded units. If you’re running in dirt, stay away away from ceramic in the drivetrain. I run Boca ceramic only in my nitro engines.
Good point. Ceramics are also good for brushless also. Forgot about that.
 

Sandracer_NL

Well-Known Member
ArrmaForum Fan
Hospitality Award
Build Thread Contributor
Messages
2,795
Reaction score
4,613
Location
Netherlands
Arrma RC's
  1. Kraton 6s
  2. Mojave EXB
I have (hybrid) ceramics in my motors 👌, rubber sealed bearings in the rest of the cars. Rubber sealed is better to keep dirt out (normal bearings usually lasted one or two runs🙄). I ran normal bearings (less friction than rubber sealed) in the ‘protected areas’ like inside the diff housings, but now I buy rubber sealed bearings in bulk and use them everywhere.
 
Top