Patrick you are making a lot of assumptions. What if the cinnabar bearings
use a diffeent angle between the roller and the race such that the roller is
longer for the same bearing depth? Would not have to be much longer to get
20% more bearing load. Just a thought.
Note: manufacturers have different tolerances of bearings all the time. the
precision of the bearing is what dictates the price. I see nothing illegal
about selecting the best of everything. If my memory serves me right didn't
GMC do that????? They picked the best toronado engines and trannies, least
runnout accuride rims etc. Nothing has changed.
>>
>> I have talked to and ordered gateways bearings which are properly marked.
>> We have no way of knowing however if they are selected so that they will
>> also provide the 20% extra safety margin. In the future I would buy from
>> cinnabar
>
>I'm almost certain(almost because Timken will not verify it either way)
>that the 20% margin comes from the additional axial clearance. There's
>no way that Timken is selecting bearings from production lots for one
>customer - it's legal and economic corporate suicide to do so. In
>addition, all the bearings from the same production lot have the same
>production specification, therefore they cannot from an engineering
>standpoint have additional capacity unless it is related to the axial
>clearance(the only variable). What Timken probably is doing is matching
>spacers to bearing sets to get the desired .0095 axial clearance. So,
>if you buy a Timken Set 23 with .0095 inch axial clearance from Gateway,
>you've most likely purchased exactly the same product being sold by
>Cinnabar.
>
>Many moons ago, a GMCnetter emailed Timken asking if they were hand
>selecting bearing sets for one customer and selling the rest to everyone
>else. I told him that, legally there was no way that Timken could
>respond and he would never hear from them. AFAIK, he never did.
>
>My opinions,
>Patrick
>--
>Patrick Flowers
>Mailto

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>
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http://www.gmcmotorhome.com
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Tom & Marg Warner
Vernon Center NY
1976 palmbeach
"The beautiful Mohawk Vally"