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  #1  
Old 10-29-2018, 09:12 PM
MConner MConner is offline
 
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Location: Snead Island, Florida
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Default Main wheel nuts

New owner, just installed new main wheel bearings.
Having trouble lining up the large aluminum nut with the cotter key hole in the axle. It seems to be too tight on one gear and too lose on the other.

Why are the holes in the aluminum wheel nut not slotted like a typical castle nut? As it is, I am forced to settle for bearing tension based on when the cotter key holes align between nut and axle. Am I missing something?
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  #2  
Old 10-29-2018, 09:20 PM
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Mel Mel is offline
 
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Location: Dallas area
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Are you sure you didn't swap nuts left for right?
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  #3  
Old 10-29-2018, 10:18 PM
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Sam Buchanan Sam Buchanan is offline
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Location: North Alabama
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Default

Quote:
Originally Posted by MConner View Post
New owner, just installed new main wheel bearings.
Having trouble lining up the large aluminum nut with the cotter key hole in the axle. It seems to be too tight on one gear and too lose on the other.

Why are the holes in the aluminum wheel nut not slotted like a typical castle nut? As it is, I am forced to settle for bearing tension based on when the cotter key holes align between nut and axle. Am I missing something?
You can drill another set of holes in the nuts.
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  #4  
Old 10-30-2018, 06:50 AM
Larry DeCamp's Avatar
Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 673
Default Grease seal aluminum insert rings.

These rings can vary in thickness as well as the bearing seat depth in the wheel halve. If the nuts were ever matched perfectly to the axle hole, you could have disturbeb it by mixing components in the bearing replacement. Thickness matters.
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  #5  
Old 10-30-2018, 07:23 AM
MConner MConner is offline
 
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Location: Snead Island, Florida
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Quote:
Originally Posted by Larry DeCamp View Post
These rings can vary in thickness as well as the bearing seat depth in the wheel halve. If the nuts were ever matched perfectly to the axle hole, you could have disturbeb it by mixing components in the bearing replacement. Thickness matters.
Exactly, it is not likely that 10 year old bearings and new bearings will match the same hole due to differing depth . In conventional castle nuts there is no limitation to an exact hole alignment as the “castle” allows proper tension. I guess I will either over size the holes in the nuts or slot them parallel to the axel to give me the ability to apply proper tension to the bearings.
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  #6  
Old 10-30-2018, 09:23 AM
MConner MConner is offline
 
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Location: Snead Island, Florida
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Quote:
Originally Posted by Mel View Post
Are you sure you didn't swap nuts left for right?
Mel,
I am sure but now I am aware that the starting position of the nut defines the hole that may or may not line up. There is a hole in each flat of the nut.

Is there any reason to have the hole as close tolerance since or is just a cotter key that is in shear to prevent unscrewing the nut?
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  #7  
Old 10-30-2018, 09:27 AM
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Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 673
Default Mconner suggestion

Just align the hole in the nut with the axle hole. Either shim the gap ( nut to felt wiper ring ) or face the nut in a lathe or sanding disk until the next hole matches the axle while the bearing has the preload/clearance you want.
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