Re: [ATM] roller bearing vs Slider bearings

[GARY FUCHS <gary@rcn.com>]

Don,

Thanks for the link - a lot of choices. Can you recommend a particular epoxy for this type of application?

I already have some West system epoxy - it seems pretty thick (viscous?) for metal to metal - do you think that could be suitable?

Do you prepare the mating surfaces besides cleaning?

Gary



---- Original message ----
>Date: Tue, 9 Jan 2007 08:18:56 -0800
>From: "Don Clement" <don_clement@charter.net>  
>Subject: Re: [ATM] roller bearing vs Slider bearings  
>To: <atm@atmlist.net>
>
>
>Gary,
>
>Epoxy works well. see:
>http://www.ellsworth.com/display/productlisting.html?ProductLineID=12&SubcategoryID=35&Tab=Products
>
>-Don
>
>
>> Hello Don,
>>
>> >>I prefer to use hardened stainless steel strip bonded to aluminum or MDF
>backing.
>>
>>
>> How do you bond the stainless to the aluminum or MDF?
>>
>> Thank you,
>>
>> Gary Fuchs
>>
>>
>>
>>
>> >Even hard-anodizing is only a few mils thick and does not always stand up
>to
>> >extreme stress of the line or point contact "singularity" of a roller
>> >bearing. I prefer to use hardened stainless steel strip bonded to
>aluminum
>> >or MDF backing. Also "way" wipers are essential to keep dust and grit
>from
>> >beneath the stone crushing roller bearing wheels. One only has to look at
>> >the tracks left from the "stone crushing" open roller bearing design on
>the
>> >popular crayford to see the effects of dust and grit contamination.
>> >Hard-anodizing or hardened SS won't prevent an open, exposed roller
>bearing
>> >design from performance degradation due to dust and grit contamination.
>> >
>> >Don Clement
>> >Running Springs, California
>> >
>> >
>> >
>> >Tony wrote:
>> >I've had success combating the contact stress and galling issue by using
>a
>> >hard anodised surface on a hard temper (T6 or T9) alloy like 6061 or
>6082.
>> >It is important to control the load on the roller bearing to manage this
>> >stress.
>> >
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>>
>
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