M35A2 Low gear issue

gringeltaube

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That bearing with the missing cage (your second picture) is a common 6310 NR (snap-ring style, 110x50x27mm).

You may get away with leaving the old roller bearings in place, but you better replace all 6 ball bearings on that input shaft, once you have it all apart.
(see my post #5, for the bearing numbers)
 

gringeltaube

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The bearing in the photo is NG, balls missing
I don't think so, Frank... 8 balls is std for all these bearings, without a loading grove.

This is what comes in there, originally...
20210311_090935 B.jpg TC Input shaft and related parts 007.jpg

Of course, you could also install a so called max-load type bearing with 11 balls, instead. Only it would prob. cost 3-4 times as much.
For the matter, that would be the #BL310NR from NTN or NSK
 
37
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18
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Hi , Thanks a lot gringeltaube

I will change all of the ball bearings. But roller bearing are in good shape I think. There are some signs of heating on some rollers only without any scratches.
 
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Iran
Hi , Thanks HDN

These trucks imported to Iran by Shah of Iran for military. Non of them are from Iraq. IFA W50 is the only truck that imported to Iran during Iran-Iraq war . But Iran only used M34 and gasser M35 in that war and M35a2s kept unused until sold at auctions. Only small amount of these trucks used in military parades.
 

gringeltaube

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I check bearing numbers and find some little different numbers.
I cant read big bearing's number so well.
Forget those numbers, most are obsolete nomenclature. Ball bearings are all metric, so take a caliper and just confirm the dimensions of each, shown below.....
(Or look them up in any bearing catalog)

1616525534258.png


Then go and buy your bearings with confidence, any known good brand.
 

gringeltaube

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....... I couldn't found Made in USA bearings and bought Japanese ones.
But good quality bearings
In my experience both, NSK and NTN make 1st class bearings, in Japan. (Koyo, I'm not so sure....)
And when it comes to tapered roller bearings, they are usually half the price of the US-made Timkens and do last the same... (And we do avoid the Chinese/Brazilian/etc. Timkens, even if they are cheaper...!)
 
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Location
Iran
In my experience both, NSK and NTN make 1st class bearings, in Japan. (Koyo, I'm not so sure....)
And when it comes to tapered roller bearings, they are usually half the price of the US-made Timkens and do last the same... (And we do avoid the Chinese/Brazilian/etc. Timkens, even if they are cheaper...!)
I bought NSK and Nachi bearings.
 
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