What would cause this? (wheel bearings)

[ValveSpring]

I recently got a new Savage XL and during the 4th break in tank this happened to the right rear wheel bearings. Any ideas?

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[Bankrupter]

None... I have had HPI wheel bearings go many gallons+! only ones I have had fail like that are the 1 small diff bearing. 4 tanks ??? This does not add up to me!

 

[frddyj]

is it me or does this seem to be happening more frequently on XL's lately?

could the extended wheel axle be putting more stress on the bearing?

 

[Bankrupter]

is it me or does this seem to be happening more frequently on XL's lately?

could the extended wheel axle be putting more stress on the bearing?

This is the first I have seen of a bearing gone in 4 tanks. 2 for that matter off the same wheel? Id be forced to say its a bad batch. but not seeing the truck and what it was doing I cant comment on that. No rust, I see grease I don't get it...

 

[ValveSpring]

2 of the 4 tank were sitting on the stand also. I did notice that the right rear wheel didn't seem to spin as fast as the other 3 when the truck was on the stand. Maybe they were bad from the start. I have replaced them with some used bearings out of another truck. I guess I will wait and see if those go out also. As far at the XL putting more stress on the bearings, I'm sure it does, but only 2 act. tanks of driving slow shouldn't have ruined them.

 

[Bankrupter]

2 of the 4 tank were sitting on the stand also. I did notice that the right rear wheel didn't seem to spin as fast as the other 3 when the truck was on the stand. Maybe they were bad from the start. I have replaced them with some used bearings out of another truck. I guess I will wait and see if those go out also. As far at the XL putting more stress on the bearings, I'm sure it does, but only 2 act. tanks of driving slow shouldn't have ruined them.

lol right ! They had to be defective. I don't think you will have issues with another set.

 

[Pope]

I noticed that it seems to be only newer trucks having so much trouble w/ bearings wonder if hpi changes suppliers.

 

[ValveSpring]

I think I found out what the problem is. Either the plastic hub is too shallow on the inside, or the hole for the drive pin in the axle is too far in.

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notice how close the pin is to the purple spacer. This is on the hub that the bearings went out on.

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this is from the hub on the right front. Notice how much space there is between the pin and the spacer.

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I filed down the wheel hex to allow some room for the spacer not to bind when the wheel is tightened down.

 

[Bankrupter]

you will caz issues with what you just did. that spot on the hex is to make it contact only the inner race. Now you can hit both and defeat the bearing all together ...

 

[Bankrupter]

you will caz issues with what you just did. that spot on the hex is to make it contact only the inner race. Now you can hit both and defeat the bearing all together ...

uuuug its a XL and that don't touch the hex NVM. This only applies on the rest of the savages w/o that spacer

 

[ValveSpring]

you will caz issues with what you just did. that spot on the hex is to make it contact only the inner race. Now you can hit both and defeat the bearing all together ...

I thought the same thing until I looked at the other 3 wheels and realized that they don't touch the spacer at all either.

Is there a better set up that I can use for wheel hexes?

 

[Bankrupter]

I thought the same thing until I looked at the other 3 wheels and realized that they don't touch the spacer at all either.

Is there a better set up that I can use for wheel hexes?

Not with the extended set up no.

 

[soulja]

i agree totally

 

[wildchild27]

maybe from factory the wheel nut was tightened down to far forcing it to bind?.

eric....