320i Wheel bearing Sizes

Post Tue Aug 18, 2015 2:35 pm

I'm making a tool to slide the front wheel bearing on straight. This is for a 89 320i Touring.

Does anyone have an axle, and or bearing laying around? I need dimensions for:

1. Bearing Inner Diameter
2. Bearing Inner race thickness
3. Length of the thread on the Axle end

If anyone has the actual FAG part number for the bearing so that I can reference their drawing, it'd be even better.

Thanks in advance.

Post Tue Aug 18, 2015 4:06 pm

Is a tool really needed?
A new bearing should slide on easy enough, maybe with some gentle persuasion from the 36mm socket (I think it's 36mm that presses on the inner race) and a wooden mallet to get it pressed on far enough to use the hub nut to wind it home.

Post Tue Aug 18, 2015 4:48 pm

jmc330i wrote:Is a tool really needed?
A new bearing should slide on easy enough, maybe with some gentle persuasion from the 36mm socket (I think it's 36mm that presses on the inner race) and a wooden mallet to get it pressed on far enough to use the hub nut to wind it home.

That's the way I have always done 'em!

Post Tue Aug 18, 2015 5:53 pm

Didnt want to risk it being misaligned and damaging the inner race, thats all.

Post Tue Aug 18, 2015 6:13 pm

It wont. Its really easy to do.

Post Tue Aug 18, 2015 11:16 pm

I've done a lot of searching for the FAG and Meyle part numbers with no luck with dimensions for just the bearing. Thats why I was asking if anyone has one, if they can measure one to the closest mm.

Post Wed Aug 19, 2015 2:49 pm

i managed to slide the old hubs off the stub axle and the new ones on without any tools when i did mine.

Post Wed Aug 19, 2015 6:42 pm

axle is 31mm, outer race is unknown as it is part of the hub, end nut is an M24 (i think 1.5mm thread, its in the 5 stud info I posted a while back), bearing width is also in there I think.

Totally no need for a tool, they should slide on with a good shove unless the axle is a bit grotty.