I've looked through all the questions, current and inactive, and found no bearing numbers. I would appreciate numbers for KOYO that are available here in Manila but any major manufacturer would do also (I assume that I could cross-reference to KOYO from, say, SKF, NTN, NSK, etc.). Thanks.
R50 steering head - tapered roller bearings
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Michel Desclèves
Re: R50 steering head - tapered roller bearings
My own experience is we cannot get such bearings directly from the builder because numbers are specific to BMW bikes (for example, on my R51/3, steering head bearings numbers are 356243XZ and 355244E) ; you are obliged to order them via a BMW's agent.
But, may be am I wrong ?
Michel
But, may be am I wrong ?
Michel
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Klaus Schonfeld
Re: R50 steering head - tapered roller bearings
Thanks, Michel; however, since BMW didn't / don't manufacture bearings, they probably use commercially available bearings that have numbers - the question is: what numbers? Are the numbers you quote BMW part numbers or did you read them off the bearings?
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Doug Watson
Re: R50 steering head - tapered roller bearings
Hi Folks
I have a set of tapered roller head bearings from Uli's for an R60/2. They are marked as follows: Inner race 34W Outer race 51W and have the makers name +MARK+ and swiss on them. I could measure them if anyone wants the dimentions.
Best wishes to all
Doug W
I have a set of tapered roller head bearings from Uli's for an R60/2. They are marked as follows: Inner race 34W Outer race 51W and have the makers name +MARK+ and swiss on them. I could measure them if anyone wants the dimentions.
Best wishes to all
Doug W
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rolf
Re: R50 steering head - tapered roller bearings
Hallo Michel,
you are right, these bearings are made especially for BMW (o.a.e), they were called "Zeichnungslager"(Drawings-bearing), they were not make confirm to any standard (like DIN),they were made after construction-drawings for the firms.
They had a Number, sometimes you can get it from dealer under the table, but not very cheaper.
rolf
you are right, these bearings are made especially for BMW (o.a.e), they were called "Zeichnungslager"(Drawings-bearing), they were not make confirm to any standard (like DIN),they were made after construction-drawings for the firms.
They had a Number, sometimes you can get it from dealer under the table, but not very cheaper.
rolf
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Klaus Schonfeld
Re: R50 steering head - tapered roller bearings
There were several reasons why BMWs at the time cost more than your average oil-leaker from England but custom-made bearings were not one of them. I installed commercially available taper roller sets in my previous R50 but did not record the numbers - they might have been Timken or SKF, in any event, common, everyday, bearings that are used on some small car axle or whatever. When I find out (and I will), I'll inform this forum. In the meantime, maybe someone has found the boxes and could beat me to it.
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Thorsten Franz
Re: R50 steering head - tapered roller bearings
Hi Klaus,
I'm sure that you can't buy the steering head bearings in Manila since local mechanics keep on asking me to get a set for them from Mark Hugget or BMW suppliers in Germany. You can bet sure that these guys know there local sources. There is a shop along the South Super Highway (service road) where you can buy imported standardized bearings that you might need for your engine. -Forgot the name but will revert.
For special bearings I would recommend to order them from Mark.
Brgds
Thorsten (R26, R69S)
Manila
I'm sure that you can't buy the steering head bearings in Manila since local mechanics keep on asking me to get a set for them from Mark Hugget or BMW suppliers in Germany. You can bet sure that these guys know there local sources. There is a shop along the South Super Highway (service road) where you can buy imported standardized bearings that you might need for your engine. -Forgot the name but will revert.
For special bearings I would recommend to order them from Mark.
Brgds
Thorsten (R26, R69S)
Manila
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Thorsten Franz
Re: R50 steering head - tapered roller bearings
Hi Klaus,
I'm sure that you can't buy the steering head bearings in Manila since local mechanics keep on asking me to get a set for them from Mark Hugget or BMW suppliers in Germany. You can bet sure that these guys know there local sources. There is a shop along the South Super Highway (service road) where you can buy imported standardized bearings that you might need for your engine. -Forgot the name but will revert.
For special bearings I would recommend to order them from Mark.
Brgds
Thorsten (R26, R69S)
Manila
I'm sure that you can't buy the steering head bearings in Manila since local mechanics keep on asking me to get a set for them from Mark Hugget or BMW suppliers in Germany. You can bet sure that these guys know there local sources. There is a shop along the South Super Highway (service road) where you can buy imported standardized bearings that you might need for your engine. -Forgot the name but will revert.
For special bearings I would recommend to order them from Mark.
Brgds
Thorsten (R26, R69S)
Manila
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Mark Huggett
Re: R50 steering head - tapered roller bearings
The brand name +MARK+swiss is the intellectual property of Mark Huggett GmbH. The taper roller steering head bearing set under this brand name is manufactured by us and supplied to most major BMW dealers world wide. This is a non standard size bearing which is not commercially available other than through BMW specialised dealers. For those who are looking for cheap sources of bearings, you do so at your own risk. There is a science behind bearings regarding their specifications, loadings, thrust etc. etc. for example, a 6207 bearing is not just a 6207 bearing. We supply 4 different types depending on their application as specified by BMW.
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Klaus Schonfeld
Re: R50 steering head - tapered roller bearings
Hi Thorsten
Funny, both of us in Manila and meeting on this website! Thanks for the bearing advice although I do not believe that the locals know all that much: I have now taken apart two R50s and both contain mostly mangled bits and pieces due to clumsy repairs and makeshift fixes. My latest finds on an R50 are (1) an advance mechanism with one spring gone but carbs adjusted rich and lean to sort of compensate (it runs, barely), (2) swing arm axles that have steps worn in them with consequent slop - and some home-made shims, (3) a u-joint with loose bolts and all four bolt shoulders and holes with consequential clearance not contemplated by the BMW people who designed the thing. The main reason is lack of cash - although I do know of one fellow who buys everything new. Maybe we should meet - I'd like to see your bikes. My numbers are 873-5747 & 0917-958-0102.
Funny, both of us in Manila and meeting on this website! Thanks for the bearing advice although I do not believe that the locals know all that much: I have now taken apart two R50s and both contain mostly mangled bits and pieces due to clumsy repairs and makeshift fixes. My latest finds on an R50 are (1) an advance mechanism with one spring gone but carbs adjusted rich and lean to sort of compensate (it runs, barely), (2) swing arm axles that have steps worn in them with consequent slop - and some home-made shims, (3) a u-joint with loose bolts and all four bolt shoulders and holes with consequential clearance not contemplated by the BMW people who designed the thing. The main reason is lack of cash - although I do know of one fellow who buys everything new. Maybe we should meet - I'd like to see your bikes. My numbers are 873-5747 & 0917-958-0102.