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E21 hub size for non Tii struts


D12typ

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Funny- that's a perfect way to ask, but I was looking for the 'cheater' details

(like the dust cap) since I don't remember the exact measurements!

 

WWW.REALOEM.COM

BMW parts 3' E21 320i Wheel bearing

 

and the inner seal's outer diameter is 40mm, 

which kinda matches what you have in the top pic, and 

 

yep, looks like it'll work.

 

(The summer I worked as a carpenter's apprentice, Scott taught

me to 'burn an inch' so you could see the start and end markings

on the tape measure clearly.)

 

If you look at the earlier hub, it has a 47 mm seal, so quite a bit bigger.

t

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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No, in my cheater method… the od/id ratio on the inner flange (thin) indicate these are the larger bearing hub compatible with the tii strut.  Your looking for hubs with a thicker inner flange.

 

edit: ignore the calipers/rotor, and focus on the hub in the photo here.  Notice the thicker inner flange… that’s what you’re after.

 

by last count that still makes me eleventy billion in the hole on being corrected by sensei Toby… but every bit counts!

 

EE13A5B1-3FE7-477E-A3F4-FE873DD19973.jpeg.f0eec38fcf78caa65207ed3f3ec7c0d1

 

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op, from the initial picx.

 

The rear shot's adequate to figure out it's an early hub,

but I did math in my head... and failed.

 

Andrew's also right- the later hub noses are turned down thinner,

whereas the early ones are (often, as in this case) not.

 

t

 

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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