Channel Master 1.2 Polar Mount Bearings

samoloko

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Hi

I bought used channel master 1.2 polar mount but It has no bearings
any Ideas where can I buy or what type they are
 

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Hi

I bought used channel master 1.2 polar mount but It has no bearings
any Ideas where can I buy or what type they are

what bearing is missing ? a picture would be good of what you have/have not :)
 

samoloko

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Gerry55

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Hi samoloko
On my Channel Master polar moun,t the pivot bolts are 5/16 UNF so unless you are going to drill them out yo will need a bush with a internal diameter of 5/16 of a inch
 

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They should be OK but go with imperial measurements on that site.
 

samoloko

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I got problems with Imperial bolts and nuts
I have chosen bearingshopuk.co.uk/obf121512-25543-p.asp andbearingshopuk.co.uk/ob081212-25272-p.asp
that way I can use M8 pivot bolts
 

circuitdesign.dk

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Hi Samoloko,

I have minimized the "slash" in the polarmount after replacing the 5/16" x 1/2" bearings to near zero.

Regarding 28.2° I can receive Astra 2F UK beam but not 2E.

(Have ordered a new C120 Invacom LNB, but I would presume your question should have been posted in another tread?.)

Best regards Michael.
 
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Captain Jack

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I think they are called flange bearings. Google and eBay brings up a good number of links for them.
 

circuitdesign.dk

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Hi Samoloko,

Channel Master's original bearings consists each of two parts who are pressed together:

1: The flanged oilite bearing with outside/inside dimensions 16.0 mm and 1/2" (12.7 mm)

2: The plain oilite insert for the flanged bearing with outside/inside dimensions 1/2" (12.7 mm) and 5/16" (7.94 mm)

If you read My post from Feb 3, 2014), the plain oilite insert is still the same: http://www.bearingshopuk.co.uk/obi0508-08-oilite-bush/

If you have lost the flanged part, bearingshopuk.co.uk dont mix imperial an metric dimensions as standard.

The flanged imperial standard part they have, which come closest, is: http://www.bearingshopuk.co.uk/bearings-bushes/oilite-bushes/obif0810-08-oilite-bush/ (15.88 mm and 12.7 mm)

Personally I have reused the flanged part, and replaced the plain oilite insert bearing.

Best Regards Michael
 

samoloko

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guys thank you for reply
I bought from ebay original oilite flanged bearings - now I only need to find out related Inserts
Michael on pics from post 11 you can see that Inserts are not oilite bushings
 

circuitdesign.dk

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Hi Samoloko,

In both original CM polarmounts I have, the inserts was plain oilite bushings with the dimensions measured. (Not steel)

Channel Master could have made changes in the production over time.

Best regards Michael
 

RimaNTSS

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That how they look like (went downstairs to shoot some picture for you). If there is need I also can make more or less precise measurements of those bits.
CM150505-17472301 (Large).jpg IMG_20150505_174743 (Large).jpg
 

RimaNTSS

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OK, made another run to the garage, brought home one of the bearings and measured it. Measurements are in mm.
ScreenHunter_303 May. 05 20.08.jpg
 

Trust

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Rima , is there tread inside ?
 

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No thread inside, it is just print from bolt used under pressure.
 

samoloko

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looks like your bearings got a steel Insert not oilite bushing Insert
can you measure height of flanged bushing and height of Insert - I think that Insert Is taller
 
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