Wheel Bearing removal/install
Stage I
Joined: Mar 2009
Posts: 1
Likes: 0
I know this topic has come up before and many have had questions.
So here is from (one) bearing Mfg.
http://www.goallballs.com/Bearings_seals.asp?page=WBK
REMOVING WHEEL BEARINGS:
When you knock a bearing out of a wheel, for chroming, powder coating, etc., you are fundamentally destroying that bearing. In fact, there's no other way to get it out without destroying it because it's pressed in on the outer diameter but access to the bearing is from the inner diameter. So you're putting an impact force across the ***** of the bearing, which damages it. It's called loading across the bearing races. You're putting little microscopic dents into the ball and the race, and over time they get aggravated. The technical term is brinelling; when you put a shock force on an outer race to an inner race across the *****, that's what you get.
Brinelling refers to a material surface failure caused by contact stress that exceeds the material limit. This failure is caused by just one application of a load great enough to exceed the material limit. The result is a permanent dent or "brinell" mark. It is a common cause of roller bearing failures, and loss of preload in bolted joints when a hardened washer is not used. Engineers can use the Brinell hardness of materials in their calculations to avoid this mode of failure. A rolling element bearing's static load rating is defined to avoid this failure type. A similar-looking kind of damage is called false brinelling. This occurs when contacting bodies vibrate against each other in the presence of very small loads. The results is a finely polished surface that resembles a brinell mark but has not permanently deformed either contacting surface.
So here is from (one) bearing Mfg.
http://www.goallballs.com/Bearings_seals.asp?page=WBK
REMOVING WHEEL BEARINGS:
When you knock a bearing out of a wheel, for chroming, powder coating, etc., you are fundamentally destroying that bearing. In fact, there's no other way to get it out without destroying it because it's pressed in on the outer diameter but access to the bearing is from the inner diameter. So you're putting an impact force across the ***** of the bearing, which damages it. It's called loading across the bearing races. You're putting little microscopic dents into the ball and the race, and over time they get aggravated. The technical term is brinelling; when you put a shock force on an outer race to an inner race across the *****, that's what you get.
Brinelling refers to a material surface failure caused by contact stress that exceeds the material limit. This failure is caused by just one application of a load great enough to exceed the material limit. The result is a permanent dent or "brinell" mark. It is a common cause of roller bearing failures, and loss of preload in bolted joints when a hardened washer is not used. Engineers can use the Brinell hardness of materials in their calculations to avoid this mode of failure. A rolling element bearing's static load rating is defined to avoid this failure type. A similar-looking kind of damage is called false brinelling. This occurs when contacting bodies vibrate against each other in the presence of very small loads. The results is a finely polished surface that resembles a brinell mark but has not permanently deformed either contacting surface.
Intermediate
Joined: Jun 2007
Posts: 32
Likes: 0
From: Steel City
I think he is using that to remove them, so they are trash then anyhow.
Grand HDF Member
Joined: Sep 2009
Posts: 3,808
Likes: 285
From: Green Country Oklahoma
I think he is talking about pulling them out and you have to pull on inner cage regardless which tool you use.
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