[TowerTalk] Battle of the bearings

[Mike]

Thanks Tod.
Looks like they only sell to dealers?

Mike

Tod -ID wrote:
> This URL will carry you to an IPTCI bearing in the model series NANF. These
> bearings have 4 holes rather than two holes and have an eccentric locking
> collar. The price quoted here in potato country is about $70. Someone else may
> be able to comment on the significance of B-type or L3-type seals, 4-hole versus
> a 2-hole bearing flanges and eccentric locking collars. The one I am looking at
> is designated as NANF 210-32 2S.
>
> To get the correct bearing use the URL and then change the shaft diameter to '2S
> in' .  
>
> http://www.iptci.com/store/product/2/15917?s=2+in&e=B
>
>
> I have no pecuniary interest in these bearing --- only know how to find the
> store.
>
> Tod, K0TO
>
>
>
>   
>> -----Original Message-----
>> From: towertalk-bounces at contesting.com 
>> [mailto:towertalk-bounces at contesting.com] On Behalf Of Mike
>> Sent: Thursday, August 13, 2009 6:27 PM
>> To: towertalk reflector
>> Subject: [TowerTalk] Battle of the bearings
>>
>> I like to get thoughts/experiences about Rohn TB3 bearings 
>> vs. Glenn Martin TB25.
>> The antennae will be a 4 element SteppIR and an M2 6M7JHV on 
>> 20 feet of 2" chrom-moly.
>>
>> I plan to use 2 bearings. Can the bearings be mounted on a 
>> rotor shelf (25G tower)?
>>
>> 73, Mike NF4L
>>
>>
>> _______________________________________________
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>
>
>