Ball v. Taper headstock bearings: Why? - MVAgusta.net
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post #1 of 18 (permalink) Old 01-27-2017, 08:20 AM Thread Starter
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Ball v. Taper headstock bearings: Why?

Why Do OEMs Use Ball Bearings In Steering Heads?

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post #2 of 18 (permalink) Old 01-27-2017, 08:21 AM Thread Starter
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Unloved Balls:

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post #3 of 18 (permalink) Old 01-27-2017, 08:22 AM Thread Starter
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New Tapered:

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post #4 of 18 (permalink) Old 01-27-2017, 08:23 AM Thread Starter
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Granted, the above was applied to my Monster rebuild; however, it applies to your MV...any MV.

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post #5 of 18 (permalink) Old 01-27-2017, 08:55 AM
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Manufacturers put 'em in.... we yank 'em out...

2006 Brutale 910S.... runs like a scalded assed ape.
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post #6 of 18 (permalink) Old 01-27-2017, 09:14 AM
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Race bikes use ball's in most cases, and throw them out after every weekend Chuck. Top teams use ceramics, not touching that though .
Tapered bearings needs to be pre-torqued to spec, and you will love em forever after, with a tweak after a few laps.

They feel good, give constant feedback...........
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post #7 of 18 (permalink) Old 01-28-2017, 09:07 AM
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It's called $$$$$ Chuck.
And properly maintained ball bearings last a looong time.

Some bikes get tapered bearings from the factory, usually heavy weights.
Suzuki shifted from balls to tapered on its VL1500 cruiser, mid way through that model's life, as a result of customers complaining of head shake when they let go of the handlebars under decel. Not really a "problem" (don't let go of the bars!), but the added friction of the tapers was all it took to quell the shake.

And there is the reason our high end MVs got ball bearings.....friction. (Also weight, albeit minimal).

I used to be fast....now I just dream about it.
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post #8 of 18 (permalink) Old 01-28-2017, 12:01 PM
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The issue I have had over the years was the ball bearings will "dent" the races, ........OK from wheelies.
Then the bike can "head shake" at speed as the balls want to ride in the dents.
My Kawasakis, Hondas and Suzukis were all changed to tapered roller head bearings. I intend to change the MV to them also.
Ball bearings usually have no play (set and done) and are well suited for high speed. The tapered rollers actually reduce overall contact by spreading the load along the bearings and not concentrating it at the balls contact point. And the tapers do require periodic adjustment.
With modern front brakes some pretty large axial loads can be introduced during hard braking, no to mention wheelies!
Plus for most factory installs, the ball bearings are just much cheaper and easier to install......................

Just my 2 cents.

Ed S

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post #9 of 18 (permalink) Old 01-29-2017, 11:06 AM
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Quote:
Originally Posted by Gearhead
Plus for most factory installs, the ball bearings are just much cheaper and easier to install......................
And there you have it.

I used to be fast....now I just dream about it.
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post #10 of 18 (permalink) Old 01-30-2017, 09:05 PM
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Exclamation wtf????

Where in the hell do you folks come up with all this BULLSHIT?????

Yes, ball bearings are cheaper.......and aren't worth a fuck either, they take impact in a straight line that's why they pound out
tapered bearings are at an angle so the can't pound out

I use the same tools for both....a SnapOn CJ 951 bearing separator to remove the inner race and Park Tool RT 2 to remove the outers it's a bicycle tool
the bearing separator will remove the inner, the Park Tool removes the outers with 1 tap of a mallet

Increased friction? really? how much do you turn the bars while riding? got a steering damper?

Adjusting tapered bearings......YOU DO NOT TORQUE THE BEARING!!!!!! ever work on the front wheel of a rear wheel drive car or truck?
you seat the bearing by going a little past 1st contact, then back it off, then with YOUR FINGERS UNTIL CONTACT THEN BACK OFF TO THE
1ST COTTER PIN HOLE AND INSTALL THE PIN
On steering heads go finger tight and clamp it down....

In front of me the Timken Journal, Machinery's Handbook and Perry's Engineering Manual

Braking loads are nothing.......look at the area of the front tire contact patch ......AGO raced with 1 disc why do you have 2?
You faster than AGO?


Didn't think so


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