Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 500 Class Electric Helicopters


500 Class Electric Helicopters 500 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


Reply
 
Thread Tools Display Modes
Old 05-19-2012, 04:05 PM   #1
vmalpi
Registered Users
 
Posts: 341
 

Join Date: Jul 2011
Location: Queens, NY
Default Boca bearings

Is this the correct bearing for main shaft for a 500ESP ?

http://www.bocabearings.com/productD...px?ItemID=3135
__________________
Victor M.
Team Cyclone Blades


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
vmalpi is online now        Reply With Quote
Old 05-21-2012, 12:38 AM   #2
xpftp
Registered Users
 

Join Date: Mar 2011
Location: United States
Default

that bearing has a 1 rating for abec or whatever it is ... i think thats the lowest on the scale and is not good... i think the higher the number the better the bearing is ..

i put abec4s in a brushless motor thinkin wow i got a awesome deal on them .. 4 races they was toast ..

but i could be wrong on the numbers ..
i have a set of traxx bearings from a slash or whatever it was that uses them .. they have blue seals on them .. working great so far .. and was good price ..
__________________
B400 gotta love the old girl / 250 / 500 ..
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Turn Up The Juice. See What Shakes Lose
xpftp is offline        Reply With Quote
Old 05-21-2012, 07:18 AM   #3
nmdesertracer
Registered Users
 
Posts: 943
 
My HF Map location
Join Date: Feb 2012
Location: New Mexico
Default

Those look correct. A smaller class number means a tighter tolerance and a larger number means a looser tolerance. This is just the opposite of the ABEC system.
__________________


nmdesertracer is offline        Reply With Quote
Old 05-21-2012, 03:24 PM   #4
xpftp
Registered Users
 

Join Date: Mar 2011
Location: United States
Default

right so if the abec number is lower the bearing isnt a good one .. the higher the number in abec is better ..

the abec number for that bearing is 1 ..

and i think its on a scale of 1 to 14 or something like that
__________________
B400 gotta love the old girl / 250 / 500 ..
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Turn Up The Juice. See What Shakes Lose
xpftp is offline        Reply With Quote
Old 05-21-2012, 03:46 PM   #5
torpedoarmed
Registered Users
 

Join Date: Jul 2011
Location: chattanooga, tn
Default

Just remember that ABEC does not indicate quality or smoothness. It is a tolereance scale. Figure that one out
torpedoarmed is offline        Reply With Quote
Old 05-22-2012, 07:30 AM   #6
nmdesertracer
Registered Users
 
Posts: 943
 
My HF Map location
Join Date: Feb 2012
Location: New Mexico
Default

1 on a abec scale would be a loose tolerance.
__________________


nmdesertracer is offline        Reply With Quote
Old 05-22-2012, 12:24 PM   #7
skered53
Registered Users
 

Join Date: Dec 2010
Location: Oregon
Default

That's about the cheapest bearing they sell !


http://www.bocabearings.com/bearing-...CYZZNB2-8x16x5
This one has ceramic balls and will run great, very low rolling resistance. $ 7.95



http://www.bocabearings.com/bearing-...R688ZZ5-8x16x5 this one is rated ABEC 5 for a $ 8.95
__________________
T-rex 500FBL BeastX, I2 MRH & Swash, I2 boom support,( Bob's the Mahn ! ) DX7s. T-rex 550 I2 FBL head & boom support,KDE motor mount. CH-53E's 83-87. MCAS New River. FAA certified Airframe & Powerplant license holder since 1992
skered53 is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 500 Class Electric Helicopters


500 Class Electric Helicopters 500 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com