Custom axle question.

[jovi]

I know its not big dog related. But I need a rear axle for the bike I am building. What type of steel are they usually made of? I have a friend with a lathe but I need to know what steel I need. It is 1" axle 18 1/4 long if that helps. Thanks

 

[gripman01]

I believe the steel is a heat treated 8620.


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[knothead]

17-4 stainless steel is what I use....its around 30 rockwell

 

[EZ Dog]

Axles are typically made from SAE grade 41xx steel or SAE grade 10xx steel. SAE grade 41xx steel is commonly known as "chrome-molybdenum steel" (or "chrome-moly") while SAE grade 10xx steel is known as "carbon steel".

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[EZ Dog]

8620 is typically carbonized and hardened and threads need to be machined after hardening with ability to get up the 60's Rockwell "C".

The 41XX materials can be purchased as pre hardened usually in the mid 30's and can still be easily machined. A 4140 or 4150 would be my preference.

Knotheads use of Stainless isn't a bad idea either.

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[jovi]

Thank s guys I knew someone here would have the answer.

 

[jovi]

17-4 stainless steel is what I use....its around 30 rockwell

Would you be interested in making and selling me one?

 

[knothead]

Would you be interested in making and selling me one?

I am booked out till the end of march right now... @Mr. Wright on this forum may have some time to make you one

 

[jovi]

I am booked out till the end of march right now... @Mr. Wright on this forum may have some time to make you one

Thank you