Needle roller bearings(1.,2.,3.) in a 105 gearbox - Alfa Romeo Bulletin Board & Forums
 
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post #1 of 9 (permalink) Old 08-08-2015, 02:06 AM Thread Starter
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Needle roller bearings(1.,2.,3.) in a 105 gearbox

Here is an inside of my conversion to needle roller bearings(1.,2.,3.) in a 105 gearbox.
After many km run - I can say it works fantastic!


Greeting
Marco

http://www.youtube.com/watch?v=pV2f_ubT1M8

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post #2 of 9 (permalink) Old 08-25-2015, 05:45 PM
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Hi Marco,
Can you give us some more info
Jim
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post #3 of 9 (permalink) Old 08-26-2015, 12:18 AM
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I am curious myself as to how this was done.

Christopher

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post #4 of 9 (permalink) Old 08-28-2015, 12:58 AM Thread Starter
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Quote:
Originally Posted by jg1053 View Post
Hi Marco,
Can you give us some more info
Jim
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Originally Posted by velocedoc View Post
I am curious myself as to how this was done.
Moin Jim,
what would you like to now?

Greetings Marco

http://www.youtube.com/watch?v=pV2f_ubT1M8
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post #5 of 9 (permalink) Old 08-28-2015, 03:27 PM
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Hi Marco,

Can you explain how you converted all the bearings to needle type bearings and what it takes to do so. Is this a close ratio 'box. I would like to fit this in my Ti Super (rep) race car
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post #6 of 9 (permalink) Old 09-05-2015, 04:09 AM Thread Starter
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Quote:
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Hi Marco,

Can you explain how you converted all the bearings to needle type bearings and what it takes to do so. Is this a close ratio 'box. I would like to fit this in my Ti Super (rep) race car
Hi Jim,
no it's not a close ratio box.

Well, you have to enlarge the middle hole on a lathe for example and find a needle bearing that fits.

See your PM.

Greeting Marco

http://www.youtube.com/watch?v=pV2f_ubT1M8
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post #7 of 9 (permalink) Old 09-08-2015, 03:19 AM
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I have a gear box with lightened gears that I could install the needle bearings if I knew the dimensions to bore out the gears to and what needle bearings to install. This would resolve the issue of having to install new bronze bushings and honing them out to the correct dimensions.

Christopher

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post #8 of 9 (permalink) Old 09-08-2015, 04:46 AM
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I have a gear box with lightened gears that I could install the needle bearings if I knew the dimensions to bore out the gears to and what needle bearings to install. This would resolve the issue of having to install new bronze bushings and honing them out to the correct dimensions.
Thank you for posting this,but we do need more details.We would need the +/-tolerance of the finished hole,what final surface finish of the new hole,and wouldn't it be necessary to re-harden this area? Any substantial difference in gearbox noise?
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post #9 of 9 (permalink) Old 09-10-2015, 12:00 AM
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I am beginning to think this is not what it appears to be on the surface. Just a few posts then nothing. Leaves every one hanging waiting for the proverbial shoe to drop.

Christopher

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