Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
Trailer bearing puller?
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="motometal, post: 1216709, member: 24727"] bearings are tempered after through hardening, then ground. If you exceed this temperature, the bearing will get softer. This does not happen all at once, say you could lose 1 point HRC for each 25-35 degrees F. Temper back is proportional to the temperature, and all materials have their own curve for this. Most bearings are made of 52100, which is a high carbon, high chromium steel. Naturally to allow for manufacturing tolerances, etc. the average bearing is "somewhat" harder than it needs to be, so you would have at least a little room to temper it back and still not have it wear out too quickly. The standard minimum hardness for a needle bearing race for example, is 58 HRC so if you start out at 62, sure you could heat it a bit and not have a failure, although naturally if you soften it at all that will probably reduce the wear life of the bearing to some degree. My statement of not going over 300F leans towards the "safe" side of things, but certainly I wouldn't want to get the bearing hot enough to turn it blue...that's around 500F. How hot do you think they get with the bearing warmer? By the way, time at temp doesn't make as much difference as the temp itself. You could use an IR pyrometer or a Temple stick to determine just how hot you are actually getting the bearing. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
MX, SX & Off-Road Discussions
General Moto | Off-Topic Posts
Trailer bearing puller?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom