Ironhead Pinion shaft roller bearing plug fit

[Jaime1840]

Originally Posted by ryder rick

I take that back, It does fit, it appears to have a inner race maybe there is also one in the outer position? Any numbers on anything?

Hey,

There is only one inner race on the bearing and there is a custom one in the case that somebody put there. There is no numbers on the bearing and it's broken... So Im going to measure the outer diameter of the race in case to see if I can get back to the factory set up.

[Jaime1840]

Originally Posted by needspeed

I'm assuming the bearing you're using came with an outer and inner race.

The OD of the STOCK race is about 1.564". So if the steel insert in the case was bored any bigger than that to fit your bearing, it will be difficult to change back to the stock set up. Keeping what you have is probably the easiest thing to do.

I'm not a bearing expert but I don't think your bearing can handle the load that the stock rollers can, but I think that it's good enough.

Looks like the sprocket is what keeps the bearing from sliding out to the right. What do the mainshaft shims ride against? Is there a steel shoulder like stock?

Your bearing has an inner race so the surface finish of the shaft where it's turned down is not an issue, but it needs to run concentric with the shaft and be a reasonably close fit in the bearing. At the .944 diameter I doubt that all the case hardening is gone and that shouldn't matter either.

In post #16, Picture brng3 it looks like the roller cage is cracked.

Hey,

You were right about the roller cage being broken, I didn't see it until I looked at the picture I hope I can go back to the factory set up because there is no numbers on the bearing and It just doesn't seem right.... I will measure the od of the race in the case to see if I can put the oem one. This race does not have a shoulder, the mainshaft shims were probably riding against..... The case I guess.