Noisy Vortech DrySide FIX!!

[mikeb86150]

I just wanted to add...I run boca bearings in my 3d rc helicopters and have for a long time, they seem to make a quality product that holds up very well at 2200 RPM head speeds and there's a whole lot more forces at work in a 3d helicopter then a mp40. Maybe overkill, but they seem very high quality in my application.

 

[Johan van aardt]

Guys just to make sure, were do the washers sit inside the motor?

mine standard had three washers in the back and one spring washer in the front, not sure if thats correct.

 

[dahenley]

on my MP40, i had 2 or 3 (i cant remember, but i regret not taking a picture of it.......)

but, all of mine were in the back. no washers in the front. as far as order, i cant help you with that, but i would think that 2 flat washer would be on the motor side and the spring washer on the housing side..

 

[Johan van aardt]

thats weird my spring washer was on the front and the three normal washers on the back. i made it one in front, two in back aswell as spring washer in back and its much more silent now than it was. still a slight vibration tho

 

[dahenley]

it could be an evolution thing. (my MP40 was a Gen1 which was a simple pump with not controlling other then initial speed)
so who knows.

 

[Johan van aardt]

i changed it around, spring washer on back, one washer on front and the rest on back and its much quieter now.

 

[taklein65]

Please let me know but wouldn't the spring washer need to be in the front to off set the pull of the magnets and keep the proper spacing inside the housing.

 

[Johan van aardt]

im not sure, i know its much quiter now than the other way around. there is only one more way i can try it and if that doesnt work then it will stay like this.

I have a freind who works for a company that custom makes motors like these so im going to ask them to have a look if i dont come right.

 

[dahenley]

The spring washer doesn't have enough tension to fight the magnet. Its used to make up any variance in machining and bearing tolerances. Its to prevent the bearings from walking in the housing and such.

 

[ssm05rsx]

So what bearings should I buy to repair my mp40

Should I go Ceramic? or go normal stainless steel.

I see I need 607-ZZ and one 698-ZZ

but I am afraid to buy some bearings thats won't be ABEC-5

 

[Sisterlimonpot]

The reports are that the ceramics are louder. Go with stainless steel.

 

[aka_Willy]

i changed it around, spring washer on back, one washer on front and the rest on back and its much quieter now.

Johan

I would leave it where it is!!!! You have found the sweet spot!!!
I have raced RC cars for years. Electric and Nitro. Not all electric armatures are the same. You can set your armature in the magnets and it will move up or down ever so slightly. This is the sweet spot!! This is where IT wants to be shimmed. Also the most powerful and efficient.

Also I preferred steel bearings. Most new modified Nitro motors come with ceramic bearings, but I change them out right away now. One motor let go after 3 races. These motors are not cheap. lol About twice an MP40. Yes they have less spinup, but honestly I cant tell the difference on the track. They are NOT as durable.

BOCA Bearings rock!!! These are my bearings of choice!!!

 

[ssm05rsx]

What ratings for Stainless steel are people going with? Should I look into 5?

 

[Sisterlimonpot]

I used ABEC5 and it's just as quiet as it was brand new.

 

[mistaflicksta]

subscribed

 

[FiReC]

what bearings had good results for the mp10?

 

[melonz]

good info on here. subscribed

 

[dahenley]

My eBay bearings were the cheapest and actually more quiet then local bearing shop bearings for my MP 40.

 

[4realestate]

awesome information.
Thank you.

 

[slammin]

great write up...a quick question, can someone specify exactly which bearings i need for a MP10?

Saltyfin mentioned a 687zz, and the 607 in a post before that, would i need one of each? or are they both 687zz?

I need to replace 2 bearings right?

thanks!