IMSB question and pictures
#1
Rennlist Member
Thread Starter
IMSB question and pictures
Reaching out the the 996 forum brain trust to identify this bearing that was pulled from my car. Is this the OEM dual row or an aftermarket solution?
The bearing appears to be in exceptional condition... seals are in good shape as well.
Here is the bearing as compared to the LN solution.
Interesting that the LN part is not as deep.
The bearing appears to be in exceptional condition... seals are in good shape as well.
Here is the bearing as compared to the LN solution.
Interesting that the LN part is not as deep.
#3
Rennlist Member
Thread Starter
Thanks Stan... I think that's pretty solid evidence that it's the OEM bearing.
Interesting (and surprising to me) that my 2001 had a dual row. Either way, the LN is going in as a replacement since it's all apart right now.
Interesting (and surprising to me) that my 2001 had a dual row. Either way, the LN is going in as a replacement since it's all apart right now.
#6
My momma always said, "Life was like a box of Chocolates.....oops correction...
My Porsche Indy always said, "Life was like an IMSB. You never know what you're gonna get."
My Porsche Indy always said, "Life was like an IMSB. You never know what you're gonna get."
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#8
Had I known I would have left that sleeping dog alone.
#9
Rennlist Member
Reaching out the the 996 forum brain trust to identify this bearing that was pulled from my car. Is this the OEM dual row or an aftermarket solution?
The bearing appears to be in exceptional condition... seals are in good shape as well.
Here is the bearing as compared to the LN solution.
Interesting that the LN part is not as deep.
The bearing appears to be in exceptional condition... seals are in good shape as well.
Here is the bearing as compared to the LN solution.
Interesting that the LN part is not as deep.
#10
Not to hijack the thread, but is it possible to determine dual-row vs. single-row based on the part number of the IMS seal and cover? Not the bearing itself, just the seal and cover parts. My seal was replaced by a dealer under the previous owner and I have that part number, but no idea what bearing is in there.
#11
You can tell the captured bearing by the size of the nut. It is considerably larger than on the older replaceable bearings. This shouldn't be found on a 996 unless it got a factory replacement engine after that bearing became available.
The dual and smaller single row can be differentiated by the depth of the bowl on the flange. Shown here from Pelican the left is the single row and the right is a dual row:
#13
Drifting
One reason might have been the additional expense of having that annular groove machined for the circlip - see photo NSK bearing above.
LN had achieved much additional load capacity anyway and did not need the extra few mm ?
#15
Rennlist Member
Thread Starter
That's what I assumed as well, but perhaps if JR is reading, he can chime in on the reasoning.
Agreed,it is interesting & they are smart so there mus be a good reason..Speculating :
One reason might have been the additional expense of having that annular groove machined for the circlip - see photo NSK bearing above.
LN had achieved much additional load capacity anyway and did not need the extra few mm ?
One reason might have been the additional expense of having that annular groove machined for the circlip - see photo NSK bearing above.
LN had achieved much additional load capacity anyway and did not need the extra few mm ?