Rear wheel bearing help

TheeE90 · 06-27-2021, 03:34 PM

Ok so I'm in the middle of replacing my rear passenger side axle, wheel bearing, and wheel hub. Got all three off, but after putting in the new wheel bearing and hub I noticed that the wheel hub rotates nice and smoothly but you can also rock the wheel hub.. side to side, up and down and every which way.. I assumed that once you've pressed in the wheel hub into the wheel bearing there would be no play for the hub to move, just rotate…. Is it supposed to move or did I get a defective bearing or install it incorrectly??? ANY HELP WOULD BE GLADLY APPRECIATED.. keep in mind I did not install the axle, axle nut or rotor and brake caliper yet ….thanks in advance (2007 bmw 335xi e90)

lookalikehuuh · 06-30-2021, 10:59 AM

I don't believe there is supposed to be any play in the hub/bearing even without the axle installed, they are freaking tight in there, at least mine are but I used the OE *** bearings from FCP Euro.

jacbo · 07-01-2021, 07:05 AM

Might be a silly question but have you pressed the hub in all the way?

Tambohamilton · 07-01-2021, 07:56 AM

Those are 4 point contact bearings, so they need the axial load from the axle being torqued in place in order to be at the proper internal clearance.

TheeE90 · 07-01-2021, 08:30 AM

Jac yes the hub and bearing was pushed back all the way… and Tambo you are correct.. I just decided to slap it all together anyways.. once I slid the axle in and torqued down the axle nut there was no play at all.. finished up yesterday and she's rolling just fine.. thanks again for the input

IllSic_Design · 07-01-2021, 04:55 PM

Yup, I'm pretty sure I remember there being play when the axles aren't inserted. I've changed both rears and had my axles out multiple times

06-27-2021, 03:34 PM	#1
TheeE90 New Member 3 Rep 16 Posts Drives: BMW 335XI Sedan Join Date: Jun 2020 Location: Connecticut iTrader: (0)	Ok so I'm in the middle of replacing my rear passenger side axle, wheel bearing, and wheel hub. Got all three off, but after putting in the new wheel bearing and hub I noticed that the wheel hub rotates nice and smoothly but you can also rock the wheel hub.. side to side, up and down and every which way.. I assumed that once you've pressed in the wheel hub into the wheel bearing there would be no play for the hub to move, just rotate…. Is it supposed to move or did I get a defective bearing or install it incorrectly??? ANY HELP WOULD BE GLADLY APPRECIATED.. keep in mind I did not install the axle, axle nut or rotor and brake caliper yet ….thanks in advance (2007 bmw 335xi e90)
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06-30-2021, 10:59 AM	#2
lookalikehuuh Major 700 Rep 1,227 Posts Drives: 2006 330i, 2007 335i Join Date: Sep 2014 Location: San Diego, CA iTrader: (0)	I don't believe there is supposed to be any play in the hub/bearing even without the axle installed, they are freaking tight in there, at least mine are but I used the OE *** bearings from FCP Euro.
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07-01-2021, 07:05 AM	#3
jacbo Second Lieutenant 79 Rep 287 Posts Drives: E90 330d LCI Join Date: Sep 2020 Location: Cheshire iTrader: (0)	Might be a silly question but have you pressed the hub in all the way?
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07-01-2021, 07:56 AM	#4
Tambohamilton Brigadier General 3058 Rep 3,909 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Those are 4 point contact bearings, so they need the axial load from the axle being torqued in place in order to be at the proper internal clearance.
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07-01-2021, 08:30 AM	#5
TheeE90 New Member 3 Rep 16 Posts Drives: BMW 335XI Sedan Join Date: Jun 2020 Location: Connecticut iTrader: (0)	Jac yes the hub and bearing was pushed back all the way… and Tambo you are correct.. I just decided to slap it all together anyways.. once I slid the axle in and torqued down the axle nut there was no play at all.. finished up yesterday and she's rolling just fine.. thanks again for the input
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07-01-2021, 04:55 PM	#6
IllSic_Design Colonel 2124 Rep 2,758 Posts Drives: 09 E92 335i Join Date: Jun 2016 Location: Northern California iTrader: (1)	Yup, I'm pretty sure I remember there being play when the axles aren't inserted. I've changed both rears and had my axles out multiple times
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