Author Topic: 3/4" internal bearings for front hubs?  (Read 6093 times)

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Offline DeereRacer

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3/4" internal bearings for front hubs?
« on: May 29, 2014, 04:48:53 pm »
Does anybody know where I might find some quality high speed bearing with a 3/4" inside diameter that will fit  hubs standard front kart hubs? I found some for a hand cart that would fit but I would not trust them to last very long.
"There are three easy ways of losing money - racing is the quickest, women the most pleasant, and farming the most certain."

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Offline BIG AL 202

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Re: 3/4" internal bearings for front hubs?
« Reply #1 on: May 29, 2014, 05:12:53 pm »
TRY http://www.mcmaster.com/#, THEY HAVE A LOT OF STUFF, MOSTLY INDUSTRIAL STYLE. HOPE THIS HELPS.
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Offline George Herrin

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Re: 3/4" internal bearings for front hubs?
« Reply #2 on: May 29, 2014, 11:52:15 pm »
You wont find a good quality 3/4 bearing that fits a standard hub 1-3/8  o.d. EC has hubs with the bigger 3/4 bearing inside and the 5/8 outside.
George Herrin #6
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Offline DeereRacer

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Re: 3/4" internal bearings for front hubs?
« Reply #3 on: May 30, 2014, 06:37:25 pm »
McMaster and grainger don't have anything in that size. So I guess your right George. I thought it might be a good upgrade to 3/4" being mower are twice as heavy as karts that these hubs are made for. If I did the math right they only spin at 1000 rpms at 40mph so a high speed bearing should not be needed. 
"There are three easy ways of losing money - racing is the quickest, women the most pleasant, and farming the most certain."

Well I got two of the three covered.
Martin
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Offline George Herrin

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Re: 3/4" internal bearings for front hubs?
« Reply #4 on: June 01, 2014, 06:44:23 pm »
All I have ever used was a 5/8 hub and never had a failure.
George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
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Offline Gui961

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Re:
« Reply #5 on: June 01, 2014, 08:31:15 pm »
we have some mower over 450 pounds here with 5/8 spindle. some with a bad desing broke or bend. but build the right way with grade 8 bolt will work fine
Guillaume Mercier-Roy

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Offline racingjohndeere55

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Re: 3/4" internal bearings for front hubs?
« Reply #6 on: June 24, 2014, 01:54:47 pm »
That's cuz all Georges weight is over the drives :lol: I made over 50 front axles with 3/4 grade 8 bolts and never had a failure but had bearing failure.  There's some place this guy (his name escapes me) works has all sorts of goodies for go karts and mowers. I have seen ceramic bearings online for $100.  I still have 3/4 bearings in my tool box if I ever build another one.

Offline BIG AL 202

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Re: 3/4" internal bearings for front hubs?
« Reply #7 on: August 19, 2014, 07:59:08 pm »
http://tbrwins.com/catsearch/frsearch.mgi?mgiToken=8D40A5G2HNECAG4MAM1 TRY THIS I FOUND THEM UNDER CHASSIE ACCESSORIES, IT SAYS THEY ARE 3/4 HUB BEARINGS. CAN'T HURT TO ASK!
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Offline berthyd

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Re: 3/4" internal bearings for front hubs?
« Reply #8 on: August 20, 2014, 10:43:07 am »
Applied Industrial Technologies or Kaman should have the proper bearings available. Any other local bearing house would also be able to get them.

Bert
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Offline George Herrin

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Re: 3/4" internal bearings for front hubs?
« Reply #9 on: August 20, 2014, 07:23:19 pm »
EC sells a standard kart front hub that uses a a 3/4 high speed bearing. It looks just like a 5/8 hub but its been made to fit the bigger od good 3/4 bearings.  here is the bearings i cannot find the hub though. http://eccarburetors.com/store/en/chassis/kart-chassis-parts/3-4-front-hub-bearing.html

----------------------------------------------------------
George has friends and helped him find the hub.

Drop down in the box is a 3/4" hub.
http://eccarburetors.com/store/en/precision-mower-accessories/wheels-and-hubs/front-hub-w-bearing-3-bolt-pattern.html
George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
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www.herrinmowersports.yolasite.com
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My other racer is a 1/5th scale Dirt Late Model!!!!

Offline DeereRacer

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Re: 3/4" internal bearings for front hubs?
« Reply #10 on: August 23, 2014, 12:21:35 am »
Thanks for the bearing ideas. What is the outer diameter of that EC bearing George? Maybe I am weird but it just seems there is a lot of flexing and bending in those standard 5/8" spindles. I have to adjust the camber a few times a year to keep things where I want them but if I ever get front brakes I imagine they would not work with a 3/4" spindle.
"There are three easy ways of losing money - racing is the quickest, women the most pleasant, and farming the most certain."

Well I got two of the three covered.
Martin
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Michigan

Offline George Herrin

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Re: 3/4" internal bearings for front hubs?
« Reply #11 on: August 23, 2014, 09:58:40 am »
Dont know the od Will get it though its bigger than the standard 1-3/8. And I for got we also have the hubs with 5/8 on front and 3/4 on rear. And MCP brakes works no matter axle size.
George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
4 time USLMRA National Champion
Retired from BP
www.herrinmowersports.yolasite.com
www.allamericanmowerchampionships.yolasite.com
My other racer is a 1/5th scale Dirt Late Model!!!!