Rear wheel bearing

[67westy]

Got a nice rumble from the rear over the weekend. On checking the wheel there was a lot of movement and strangely I could undo the hub nut by hand, it was definitely torqued correctly when it was last apart.

So I started taking it all apart and whilst reading the Bentley manual it says to remove the axle shaft from the bearing housing using a puller, I didn't need to do this as it was already loose and I had to drive the hub off the axle. Is this likely to be because the bearing had failed?



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[Moseley]

Just done both of mine - the point where the axle gets tight in the bearing housing is where the machined faces are in contact with their respective inner bearing races. Once clear of these, the axle becomes loose. Depending on what has failed, this could explain your axle coming loose whilst everything should be relatively tight.

Interestingly, I noticed one of my outer bearings inner race had got a crack all the way through the inner race. I'm not sure if this is down to the poor quality replacements that are available, but slightly concerning seeing as the bearing didn't look worn at all.

 

[Trikky2]

It's hard to tell in advance without being there to see the parts.
When you re-assemble, as long as the new bearings are a good fit in the hub and onto the stub axle and the spacer fits without crushing the bearings, then you will be fine.

 

[67westy]

Cheers guys, nice to have a bit of reassurance Just got two stubborn bolts to remove on the bearing carrier then I can have a proper look.

I don't suppose you know why all the bearing kits only include one grease seal? From reading bentley it sounds like both seals need to be removed when changing the bearings.

Moseley, where did you get the bearings from? I've been looking at GSF as they would be a good price with the weekly discount but they don't mention the make.

 

[*Sam*]

Last time I got bearings from there they were Vtech bearings.

 

[67westy]

Last time I got bearings from there they were Vtech bearings.

I ordered from Veewee just before reading this, gave them a call and they would be Vtech bearings Got the guy seeing if he can source some better quality alternatives before I cancel the order so we will see!

Can't seem to find the brands supplied by the usual suspects, can see markings on some of the pictures but no guarantee as to what will arrive. Don't want to be doing the job again any time soon!

 

[Webbaldo]

I'd stick with Meyle bearings, everyone has their own favourites but a lot of VEEWEE/GSF stuff is just the cheapest they can source, unless they specify

Meyle = Nice german and never had an issue.

 

[67westy]

I'd stick with Meyle bearings, everyone has their own favourites but a lot of VEEWEE/GSF stuff is just the cheapest they can source, unless they specify

Meyle = Nice german and never had an issue.

It would be nice to have the chance but it doesn't look like meyle do the outer for 68-70 vans. The guy at GSF was very helpful and spent a couple of hours searching for me but was unable to find a decent supplier for the outer bearing.

I thought I had found some decent ones from C&C so I've ordered their german quality kit http://www.customandcommercial.com/vw-baywindow/baywindow_front--and--rear_axle_parts/baywindow_rear_axle--and--suspension_parts/rear_wheel_bearing_kit_early_bay_68-7fslash70_10434/" onclick="window.open(this.href);return false; however when you look at the listing for the outer bearing http://www.customandcommercial.com/vw-baywindow/baywindow_front--and--rear_axle_parts/baywindow_rear_axle--and--suspension_parts/roller_bearing_1_per_side_split_bus_outer_reduction_box_64-67_early_bay_outer_rear_hub_68-7fslash70_850/" onclick="window.open(this.href);return false; it shows a picture of an SKF bearing and then in text underneath the image it says "Not SKF". Didn't spot this until after I placed the order so lets see what turns up :roll:

If anyone does know where to get a good outer please let me know

 

[*Sam*]

Yes I had the same issue and have had to go with the vetch.
Im currently at this stage although have now full pressed the Stubbs in.


If you source some others that are better I would be interested as I had to replace worn hubs and got some NOS Stubbs so am a bit concerned about using these Vtech bearings.

 

[rlepecha]

Just a thought, does anyone know the size of the bearings? I would imagine they are something you can order off the shelf? No?

I cannot imagine VW will have used a special bearing size!

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[*Sam*]

I have the old shells so can take a look when I get 5

 

[67westy]

Well I got it all apart tonight. The bearings actually seem OK which is concerning as if they are then I don't know why it came loose. The outer shell moved up and down fairly easy and only needed drifting out for the last part after the circlip recess so maybe this is worn a bit?

The sleeve was loose on the stub but I think that's normal?

The hub has a very slight lip on it where the spacer sits, is that OK?

Anything I should check before reassembly?

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[Moseley]

My bearings were from Custom and Commercial as a kit, and came with 4 seals altogether. The inners were SKF, and the outers were some no-name brand, similar to the one I've found on the van that the inner race is cracked on.

Interestingly, one of my outer bearings is a *** branded one, with model N207E. I believe the standard VW bearing would have had a floating inner race, whereas the *** it is the outer race. Can't see why this would be a problem though as it was obviously working fine on our bus.

For reference, the inner and out bearings share the same dimensions, the only difference (I presume) is that the outer has to be of a cylindrical roller type with a floating inner / outer race so that it can take up the various tolerances and wear.

 

[rlepecha]

http://www.dbearings.com/SKF/SKFN207E/" onclick="window.open(this.href);return false;

http://www.bearingboys.co.uk/?catid=1009&att1=35mm&att2=72mm&att3=17mm&att4=&att5=" onclick="window.open(this.href);return false;


http://www.bearingboys.co.uk/bearingsearch.cgi?insidedia=35&outsidedia=72&width=17&type=Ball" onclick="window.open(this.href);return false;

Not looked at anything in detail, but there's a fair few different types of cylindrical and ball bearings of that size on bearing boys. Think I've got a set of rear wheel bearings in the shed, that the PO gave me with the bus. I'll check what they are, I'm sure they were in a Meyle or similar packet.

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[67westy]

http://www.dbearings.com/SKF/SKFN207E/

http://www.bearingboys.co.uk/?catid=1009&att1=35mm&att2=72mm&att3=17mm&att4=&att5=" onclick="window.open(this.href);return false;


http://www.bearingboys.co.uk/bearingsearch.cgi?insidedia=35&outsidedia=72&width=17&type=Ball" onclick="window.open(this.href);return false;

Not looked at anything in detail, but there's a fair few different types of cylindrical and ball bearings of that size on bearing boys. Think I've got a set of rear wheel bearings in the shed, that the PO gave me with the bus. I'll check what they are, I'm sure they were in a Meyle or similar packet.

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35x72x17 is the size of the inner bearing according to ratwell. Outer should be 40x80x18 http://www.ratwell.com/technical/FAQ/FAQContent.html" onclick="window.open(this.href);return false;

one of these I guess, but no idea which is the correct one or what the differences are aside from some are C3 and some aren't

http://www.bearingboys.co.uk/bearingsearch.cgi?insidedia=40&outsidedia=80&width=18&type=Roller&x=8&y=5" onclick="window.open(this.href);return false;

 

[67westy]

OK well I think It's one of the N rather than NJ or NU. Should the outer be C3?

http://www.bearingboys.co.uk/Cylindrical-Roller/N208-ECP-SKF-Cylindrical-Roller-Bearing-2910-p" onclick="window.open(this.href);return false;
http://www.bearingboys.co.uk/Cylindrical-Roller/N208-ECPC3-SKF-Cylindrical-Roller-Bearing-2911-p" onclick="window.open(this.href);return false;

My current one says N207E which is odd as N207 should be the wrong size

Tempted to order an SKF one if I can find out about the C3 bit

EDIT: Think it will be a trip home at lunch to measure as I'm not convinced by the bearings that were removed. I guess I might have a later bearing carrier fitted......

EDIT 2: I think maybe ratwell has the sizes wrong as it lists and N208 but the same lists an N207 as fitted.

 

[67westy]

Well I cancelled my C&C order and I will be ordering this along with a *** inner bearing:

http://simplybearings.co.uk/shop/p51410/N207ETVPC3-Single-Row-Cylindrical-Roller-Bearing-Extra-Load-Polyamide-Cage-35x72x17mm/product_info.html" onclick="window.open(this.href);return false;

Need to double check the measurements at lunch before I order but it'll be £58.63 for both bearings posted first class. Hope it's right!

 

[rlepecha]

I'm pretty certain c3 wouldn't be required, its extra clearance for thermal expansion.

If the other bearing isn't C3 or doesn't allow for increased thermal expansion, then neither should the one you are talking about. Also, I cannot imagine the temperatures we are talking about are even remotely close to that of which they expect to see high temps on and thus are unlikely to require c3 clearance. I would guess we are talking 10000rpm in a hot environment, which neither is applicable for a bus(I don't think, anyway!)

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[67westy]

I'm pretty certain c3 wouldn't be required, its extra clearance for thermal expansion.

If the other bearing isn't C3 or doesn't allow for increased thermal expansion, then neither should the one you are talking about. Also, I cannot imagine the temperatures we are talking about are even remotely close to that of which they expect to see high temps on and thus are unlikely to require c3 clearance. I would guess we are talking 10000rpm in a hot environment, which neither is applicable for a bus(I don't think, anyway!)

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The inner bearing is a C3. I found the list of VW part numbers cross referenced to *** numbers on the samba and that shows a C3 bearing

http://www.thesamba.com/vw/archives/info/bearingref_t2.php" onclick="window.open(this.href);return false;

 

[rlepecha]

I'm pretty certain c3 wouldn't be required, its extra clearance for thermal expansion.

If the other bearing isn't C3 or doesn't allow for increased thermal expansion, then neither should the one you are talking about. Also, I cannot imagine the temperatures we are talking about are even remotely close to that of which they expect to see high temps on and thus are unlikely to require c3 clearance. I would guess we are talking 10000rpm in a hot environment, which neither is applicable for a bus(I don't think, anyway!)

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The inner bearing is a C3. I found the list of VW part numbers cross referenced to *** numbers on the samba and that shows a C3 bearing

http://www.thesamba.com/vw/archives/info/bearingref_t2.php" onclick="window.open(this.href);return false;

Ah fair enough, good find!

Subscribed to the thread for future reference

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