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1Back to top Go down   How to remove front wheel bearings? Empty How to remove front wheel bearings? on Sat Jul 30, 2011 2:52 pm

club_c

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Thought I'd change out the front wheel bearings, since I think I've got a slight thump from that area.  But how to remove?  The manual says you need a special tool, and when I take a close look there is a spacer between the bearings that doesn't allow a drift to gain a purchase to knock them out.  Now what?

    

2Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 3:30 pm

Inge K.

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In each end of the spacer it`s a "washer" of rather thin and weak sheet metal,
this "washer" easily colapse to one side with the use of some amount of force.
Then you have space enough for a drift on one side, straighten the "washer" afterwards.

How to remove front wheel bearings? Distan10

Inge K.

    

3Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:21 pm

club_c

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Thanks for the pic Inge. Still not tracking how I would do this. Also the manual talks about heating/expanding the hub for reassembly. Any thots on that?

    

4Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:30 pm

charlie99

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dont worry about it club c .....they are not hard to get back in ....just use the right socket as a punch around the circumfrance



what you need to do is get a screwdriver ...just inside the bearing proper where the separation shaft starts ...sometimes it can be just levered a bit to create an edge gap between the beaining and the tube (the more gap you can create is better )

them from the opposite end get a long flat head screwdriver to knock that bearing out ....the shaft will follow ...then its easy to get the other side out .

    

5Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:41 pm

Inge K.

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Haven`t tested this metod myself, since I got the tools needed.
Only seen it mentioned other places, that this is metod used when you ain`t got the tools.
Use a bar from one side, and try to move a bit forth/backwards while pressing.

Heating the hub is not a drawback...but watch the paint, I`m using a threaded bolt and a old outer race and pressing it in without heat, just be very shure that the bolt is exactly centered.

Inge K.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

6Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:47 pm

charlie99

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it works inge .....the right tools is a bonus ...



once the tube is removed ...use pliers to straighten the ridge that has been distorted on the spacer tube ..


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'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OHow to remove front wheel bearings? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

7Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:55 pm

club_c

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No doubt this is the original bearing so I don't expect this to be super easy. So Charlie you're saying try to pry the target bearing back a bit from thr outside to create a gap between the bearing and spacer the go in from the opposite side and try and catch an inner race edge via the small gap between the bearing and spacer and whack it?

Inge I agree using the old bearing to help install the new one works well. I'll probably try to find a bolt/washer/nut assy to crank together to pull the new bearing back in.

Btw, used the bearing cross reference guide in the download section to source non-BMW bearings. It pays to do the homework. FAG bearing: $7 each.

    

8Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 4:59 pm

Inge K.

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Have straightened a few of them which have been bent by accident....
It seems like staring to hard at them while they laying at the workbench is enough....

Inge K.

    

9Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 5:06 pm

charlie99

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yes club c some gap is good .....but the intention is to colapse the suport ring around the spacer so that you can get some purchase on the bearing to knock out ....of corse ...work that gap around the bearing so that you are not just hitting in the one spot .


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OHow to remove front wheel bearings? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

10Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sat Jul 30, 2011 9:41 pm

RicK G

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I also grind a small gap in one end of the spacer so that next time it is easier.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

Dennis

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OK, some tips on front wheel bearings - firstly, BMW recommend to heat the hub, this is to expand the hole for the bearing. You also need to freeze the bearings, this gives the greatest amont of clearance to aid installation. The reason for this method as opposed to pressing/driving the bearings in with all components at the same temperature is that the alloy of the hub is particularly susceptible to "picking up" and if this happens you can end up with brake shudder for ever and a day ! Reason - discs are rigidly fixed to the hub and any runout due to imperfect bearing mounting will cause the disc(s) to have runout.

Issue 2 - never try to pull/push the bearings into position by pressing on the inner raceway as you are transmitting the forces through the balls to the outer raceway and the result will be a damaged bearing before it even gets to do a turn. Press only on the outer raceway, or press on both raceways simultaneously using an accurately machined mandril only. Hope this helps.

    

12Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sun Jul 31, 2011 7:55 am

RicK G

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Dennis I can assure that I have club-cs word that he will not use force on the bearing and that if things do get a bit sticky he will use a bigger hammer and only strike as hard as before.Laughing


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

13Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sun Jul 31, 2011 7:57 am

RicK G

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@Inge K. wrote:Have straightened a few of them which have been bent by accident....
It seems like staring to hard at them while they laying at the workbench is enough....

Inge K.

Ah I see you also have completed the uri geller course of advanced spoon bending.Laughing


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

14Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sun Jul 31, 2011 8:31 am

Inge K.

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I intend to get a chair on advance course next year.
Then I can use it on the spanners used in thight places.

Inge K.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

15Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Sun Jul 31, 2011 8:58 am

charlie99

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@Inge K. wrote:I intend to get a chair on advance course next year.
Then I can use it on the spanners used in thight places.

Inge K.



How to remove front wheel bearings? 44271



oh yeah inge !!!! im there too

it just seems rediculous when balencing underneeth and your right hand is stuck under you for suport ...that you cant bend that little bit further with that left hand to that rotten nut that will strip if you dont get it right !!!!

    

16Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Wed Sep 07, 2011 7:38 am

Guest

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Whilst tending to my centre stand swappo this evening I thought I'd grab the forks for a little rock back and forth to check the steering head bearings for excess play...what should I feel as I bumped the front wheel with my knee but a relatively significant amount of freeplay. I spun the wheel hard only to hear the low down rumble of self-destroying bearings sounding like gravel under a tyre on a country road. I'll be onto this job quick smart! I'll use FAG 6005 for about ten dollars each instead of BMW's OEM bearings for nearly $30 a piece.

http://www.largiader.com/parts/crossref.html

I didn't want to have to do this particular job right now as I've located a 3 spoke wheel which is coming from America for use with the 3 spoke back wheel I've recently obtained. But this is my daily rider and I need it....

Thanks, gents, for the tips.

    

17Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Wed Sep 07, 2011 1:11 pm

walfish

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I'll use FAG 6005 for about ten dollars each instead

Nothing wrong with FAG bearings, we have used them for many years in machinery refurbs.
All the agents do is whack huge markups and repack into their brand packaging.

    

18Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Wed Sep 07, 2011 6:33 pm

Oldgoat

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Hey Inge,
Did you end up purchasing the actual BMW tools or are there aftermarket equivalents? Oh, and why I'm asking is it still to purchase BMW special tools new?
Thanks,
OG

    

19Back to top Go down   How to remove front wheel bearings? Empty How to remove front wheel bearings on Thu Sep 08, 2011 6:54 am

Guest

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I bought the new 6005 sealed bearings from a local bearing supplier this arvo for $12 a piece. First thing this morning I checked their availability and price with BMW. BMW Australia doesn't stock this part number despite the fact that they fit from '83 through '06 on some models. I suspect it's because people like me don't buy them from BMW and instead get them from the aftermarket. BMW has sold just five of this OEM part number in the past two years in OZ. For over $40 per bearing who would!?

I had the old, tired bearings out and the new bearings knocked back in in about 45 minutes' time. What a difference. It was a cinch with the right tools, but any decent punch and something to centre the bearings with will do. Here's a few pictures of the process:

A hammer and a long enough punch with an edge to it to catch the inner race from the opposite side. The old bearings came out very easily and the new went in like a hot knife through butter. I didn't need to whack 'em into the fridge but it's not a bad idea to 'shrink' them a bit compared against a warmed up hub to enlarge its opening a bit. I didn't have to touch the centre axle sleeve except to get it out of the way after the first bearing was out.
How to remove front wheel bearings? Imag0013
Notice the punch I used has a step at its end? That step was enough to catch the bearing's edge and start it moving. Of course, I'd whack it then move it round a quarter of the way and whack it again to make it come out evenly. Crooked is for politicians and lawyers.
How to remove front wheel bearings? Imag0111
The hub's bore cleaned out and ready for the new rollers.How to remove front wheel bearings? Imag0112
One of the new bearings ready to be whacked gently in with a bearing tool which seats evenly against the bearing's outer race.

How to remove front wheel bearings? Imag0113
Seating the bearing against the hub, the limits of the tool. The next step remedies this bottoming out.
How to remove front wheel bearings? Imag0114
Stacking the old bearings on top of the new to allow the tool to seat the new bearing against the step.
How to remove front wheel bearings? Imag0116
Driven Home. The finished product.

OG, the factory tools are a generic brand (green box) of some quality, and the price to match. Use what Inge has shown, or a simple punch and Judy will work.



Last edited by Two Wheels Better on Thu Sep 08, 2011 4:11 pm; edited 1 time in total

    

20Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 10:31 am

Inge K.

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@Oldgoat wrote:Hey Inge,
Did you end up purchasing the actual BMW tools or are there aftermarket equivalents? Oh, and why I'm asking is it still to purchase BMW special tools new?
Thanks,
OG

Universal blind hole bearing puller with slide hammer and expanding collets.

Inge K.

How to remove front wheel bearings? 19-12810

    

21Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 3:03 pm

Guest

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I didn't find I needed a slide hammer to remove these bearings, since it was so easy with a few good whacks onto a well-placed punch. But if you do, be sure it has the expander that fits into a 25mm centre hole, which is the ID of a K75/K100's inner race and OD of the axle.

    

22Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 4:15 pm

Oldgoat

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Great. Thanks for the details and pics guys! Smile Time to put in an order for a bunch of bearings...


OG

    

23Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 4:38 pm

Crazy Frog

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@Inge K. wrote: Universal blind hole bearing puller with slide hammer and expanding collets.

Here is the very cheap version Very Happy
How to remove front wheel bearings? 46A
Click here for the Web site (I already posted this as a solution to remove the bearings in the clutch controlling arm.

Bert


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How to remove front wheel bearings? Frog15How to remove front wheel bearings? Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

24Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 7:20 pm

Oldgoat

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Nice CF. I forgot about this little gem! Smile

    

25Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 8:33 pm

Crazy Frog

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@Oldgoat wrote:Nice CF. I forgot about this little gem! Smile

You must be getting old(er) as I forget a lot too! lol! My memory is full and I need a couple of Gigabytes upgrade!


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How to remove front wheel bearings? Frog15How to remove front wheel bearings? Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

26Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 8:40 pm

RicK G

RicK G
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@Crazy Frog wrote:

You must be getting old(er) as I forget a lot too! lol! My memory is full and I need a couple of Gigabytes upgrade!



"Upgrade" I just desperately need a defrag and get rid of all the crap that is using up valuable space to no end.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

27Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 8:42 pm

Crazy Frog

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Oh Dear....

We are a bunch of old gezzers!
Defrag will only re-arrange the data in a contiguous area. but it still doesn't make any sense to us!


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How to remove front wheel bearings? Frog15How to remove front wheel bearings? Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

28Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 8:51 pm

RicK G

RicK G
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Sense! SENSE! when has that ever had anything to do with it, I didn't think it ever needed to make sense.



I have a bike in the shed that needs to be finished and it's pissin rain then at the back of that is a snowy blast right of the antarctic makes me cold just thinking about it. Thats why I am here talking garbage.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

29Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Sep 08, 2011 8:57 pm

Oldgoat

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@Crazy Frog wrote:

You must be getting old(er) as I forget a lot too! lol! My memory is full and I need a couple of Gigabytes upgrade!


Lol, wouldn't that be awesome if you could just go down to the Neuro-tech store for a few new high speed Gigs for the old gray matter!

    

30Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Mon Dec 19, 2011 2:13 am

club_c

club_c
Life time member
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Well, back to bearings... Finally got this done yesterday with Inge's method, about 20 minutes re and re once the wheel was off.


__________________________________________________
"There's never enough time to do it right, but there's always time to do it over."

1988 K100RS SE VIN 01477554
    

31Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Wed Jan 06, 2021 12:28 pm

justmike

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I’ve done them with a slide hammer quite some time ago. Without the tool, I’m wondering if you snipped away the cage holding the balls in place such that you could remove the inner race, you could then have access to the spacer and drift against it to remove the opposite side bearing? I guess success depends on whether the remaining outer race has enough edge exposed to drift against?

    

32Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Thu Jan 07, 2021 6:32 pm

Dai

Dai
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I found the slide hammer almost as bad as the 'official' way - if you want to read the BMW way of removing the wheel bearings, just make sure you're not about to sup tea/coffee/whatever.

Anyway, the bit that Inge and Charlie missed....

- Look down inside the wheel - you should just see the a tiny lip between the spacer and the bearing
- Find/grind/make a nice long bar that just grips onto the lip - I used 13mm round bar
- Now beat the top of the bar sideways, not down, using the 'other' bearing as a pivot point. What you're trying to do is crush the tin ring to expose the inner race of the bearing
- Punch the bearings out (easy now) and throw away the tin rings. Use a finger to line up the spacer when fitting the spindle back in.

You may find that you leave a few gouges in the inside of the spacer - a half-round file and some wet'n'dry soon fixes that problem. Done four front wheels like this now with no problems and it's a lot easier next time round.


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

33Back to top Go down   How to remove front wheel bearings? Empty Re: How to remove front wheel bearings? on Fri Jan 08, 2021 1:10 am

MartinW

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I made one up at the Trades Guild. A bit of pipe and a large washer is missing from the picture. A bit of heat with a hot air gun helps. Freezing the bearing and heating the wheel helps with the installation.
Regards Martin.
How to remove front wheel bearings? Bearin10
How to remove front wheel bearings? Bearin11


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