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Author Topic: Rear wheel bearing change continued  (Read 4803 times)

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polilara

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Rear wheel bearing change continued
« on: 16 May 2019, 19:04:33 »
So, old bearing on the floor, nothing broken yet. I have tools to push new bearing in and I am now designin a nut system to pull the hub back in. Next I should install the flange to the inner side. How that tool should look like?
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Nick W

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Re: Rear wheel bearing change continued
« Reply #1 on: 16 May 2019, 23:19:29 »
I use the old inner bearing race as a spacer to pull the hub back into place using its own nut. The race does need to be a loose fit, which is acheived by cutting a slot in it. Which is the easy way to get it off the hub.
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polilara

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Re: Rear wheel bearing change continued
« Reply #2 on: 17 May 2019, 06:12:32 »
Hello, yes - my idea was to use id 34.5 spacers which are a bit larger than the outer dia of the groove part of the hub. As the dia 39 part of the hub (where inner race of baring sits) is shorter than the bearing there is no need to "loose fit". Perhaps estate is different than saloon or I misundesrtood again. However, my problem is get the flange back to the hub after having installed to hub to the bearing. How to do that?
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Nick W

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Re: Rear wheel bearing change continued
« Reply #3 on: 17 May 2019, 07:10:58 »
Now I'm confused, the drive flange is easy: push it as far onto the hub splines as you can, tap it home with a mallet and tighten the nut to the specified torque setting.


Spacers for pulling the hub into the bearing go against the inner race of the new bearing. The spacer needs to be a loose fit on the hub so you can get it off easily. I have two in my bearing kit: one with a slot cut in it to get off the hub originally; and another, that my assistant removed with a puller, that I bored out in the lathe.
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Re: Rear wheel bearing change continued
« Reply #4 on: 17 May 2019, 07:57:22 »
All I do,is dress the hub with a bit of 800 grade wet/dry that's got oil on, then push the hub back in, piece of timber on the hub, then whack it in with a hammer, tighten it up with a windy gun,  :y
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polilara

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Re: Rear wheel bearing change continued
« Reply #5 on: 17 May 2019, 09:45:53 »
Quote from: Nick W on 17 May 2019, 07:10:58
Now I'm confused, the drive flange is easy: push it as far onto the hub splines as you can, tap it home with a mallet and tighten the nut to the specified torque setting.


Spacers for pulling the hub into the bearing go against the inner race of the new bearing. The spacer needs to be a loose fit on the hub so you can get it off easily. I have two in my bearing kit: one with a slot cut in it to get off the hub originally; and another, that my assistant removed with a puller, that I bored out in the lathe.

My turn to be confused, the diameter of the drive shaft (of that part which goes in to the inner race) is 39 mm + some hundreds. That part newer come through the inner race as the length of that part is 38 mm and the length of bearing is 45mm. This 45 is measured from the new bearing, perhaps it is wrong part. Have to measure the length of the old bearing when back home.
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Doctor Gollum

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Re: Rear wheel bearing change continued
« Reply #6 on: 17 May 2019, 10:05:44 »
Saloon and estates use different bearings... The estate ones are longer ie they support a longer shaft length...

You have the wrong bearing...

Estate is same size as this:
http://vi.raptor.ebaydesc.com/ws/eBayISAPI.dll?ViewItemDescV4&item=312531364962&category=174097&pm=1&ds=0&t=1558083811991&cspheader=1

Hth.  :y
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polilara

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Re: Rear wheel bearing change continued
« Reply #7 on: 17 May 2019, 10:12:35 »
OK, then I can understand what Nick W means... Sorry for that.

What is the length of Saloon bearing?
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Doctor Gollum

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Re: Rear wheel bearing change continued
« Reply #8 on: 17 May 2019, 10:18:44 »
Quote from: polilara on 17 May 2019, 10:12:35
OK, then I can understand what Nick W means... Sorry for that.

What is the length of Saloon bearing?
39mm as per:

https://www.ebay.co.uk/itm/Vauxhall-Omega-1994-2003-Rear-Wheel-Bearing-Kit-/302340675199
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polilara

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Re: Rear wheel bearing change continued
« Reply #9 on: 17 May 2019, 10:49:46 »
OK thanks, let's see, after having measured the old one I know what I really had there. This Saloon link bearing fits perhaps to some front wheel driven cars, too, because of two Seeger Rings and a cotter pin??
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Re: Rear wheel bearing change continued
« Reply #10 on: 17 May 2019, 11:08:31 »
Quote from: polilara on 17 May 2019, 10:49:46
OK thanks, let's see, after having measured the old one I know what I really had there. This Saloon link bearing fits perhaps to some front wheel driven cars, too, because of two Seeger Rings and a cotter pin??
The link was to demonstrate the size... The picture may not be entirely accurate  :y
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polilara

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Re: Rear wheel bearing change continued
« Reply #11 on: 17 May 2019, 11:24:49 »
OK, clear, sometimes too much over thinking...
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Re: Rear wheel bearing change continued
« Reply #12 on: 17 May 2019, 11:58:35 »
Quote from: polilara on 17 May 2019, 11:24:49
OK, clear, sometimes too much over thinking...
Perhaps, but questioning is a way to learn ;)
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Re: Rear wheel bearing change continued
« Reply #13 on: 18 May 2019, 06:25:27 »
So, old bearing is Od 74 Id 39 L 39, hub length is 38 So there is 1mm Gap after having installed the flange, logical. And loose fit of spacer needed as Nick W said.
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polilara

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Re: Rear wheel bearing change continued
« Reply #14 on: 21 May 2019, 17:27:34 »
Real progress; bearing, hub and flange installed. Thanks for all tips. Next task is to tighten the nut to 300Nm. Good ideas welcome, I am workin on the floor.
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