WTB: Thrust bearing that's for common TV rotors

[Mudfoot]

I believe it's a TB-102

Anyway, I need one. I used to have one, but sold it. I've searched, but no luck. Hard to find.

Here's a picture.

 

[Road Squawker]

http://www.antennapartsoutlet.com/Pages/Products/NTEPages/TB-105.html

Discontinued

https://www.bellscb.com/products/antennas/NTE/NTE_TB105_Thrust_bearing.htm

Discontinued


the TB 105 is discontinued, replaced by the UTB-10.

 

[Mudfoot]

Thanks, I'll try to dig one up. Should see a resurgence in that stuff with cord cutters gaining popularity.

 

[unit_399]

Amazon shows the TB-105 bearing, but , "currently out of stock." Most places I looked said out of stock or discontinued.

Maybe this one from Yeasu will fit the bill.
https://www.dxengineering.com/searc...toview=SKU&sortby=Default&sortorder=Ascending

- 399

 

[undertaker]

try Norms rotors..

 

[Mudfoot]

Amazon shows the TB-105 bearing, but , "currently out of stock." Most places I looked said out of stock or discontinued.

Maybe this one from Yeasu will fit the bill.
https://www.dxengineering.com/searc...toview=SKU&sortby=Default&sortorder=Ascending

- 399

They've been out of stock for along time. I needed one for a project about 8 years ago and couldn't find one. Got lucky and found a NOS on ebay. It worked great, but sold it like a dummy. Sorry, but the Yaesu bearing won't work. The UTg105's work great as they allow a higher height above the rotor. Solid Signal doesn't even stock them.

 

[binrat]

You may have to build your own as I haven't seen 1 in years. Good luck.

 

[unit_399]

Mudd -

Are you looking to take the vertical load off of the rotator, or lessen the radial deflection that the rotor has to handle ... or both ?? If a mast-mounted thrust bearing is not commercially available, you can make a suitable substitute using a pillow block bearing with a lock collar.

This would absorb all radial deflection, and could provide additional vertical support without suffering damage. Easily mounted to a small metal plate and held to the mast with suitable muffler clamps. Probably not too expensive. Just a thought

- 399
.

 

[Mudfoot]

That has potential. Just looking for lateral support. I believe that would work well. Certainly easy to fab up a plate. Thanks for the score.

 

[Captain Kilowatt]

Mudd -

Are you looking to take the vertical load off of the rotator, or lessen the radial defection that the rotor has to handle ... or both ?? If a mast-mounted thrust bearing is not commercially available, you can make a suitable substitute using a pillow block bearing with a lock collar.
View attachment 30575

This would absorb all radial deflection, and could provide additional vertical support without suffering damage. Easily mounted to a small metal plate and held to the mast with suitable muffler clamps. Probably not too expensive. Just an thought

- 399
.

I was thinking about just such a bearing. The one you pictured looks like it has set screws to clamp onto the shaft/mast.

 

[Mudfoot]

Yep, my brain is conjuring up several things. I need some ratings on this and others like it. Might be able to use a few of these and place a rotor at the base to turn the wholeshabang.

 

[binrat]

Could you not use a thrust bearing bolt onto a chunk of angle iron with a muffler clamp securing it to the support pipe?? Just a simple idea.

 

[Mudfoot]

I might have a lead on a thrust bearing like I had before. I'd rather have this one. This looks fairly easy to build, though.

 

[binrat]

I might have a lead on a thrust bearing like I had before. I'd rather have this one. This looks fairly easy to build, though.View attachment 30603

That's pretty much what I was thinking.

 

[Shadetree Mechanic]

Surplus Center has a good assortment:

https://www.surpluscenter.com/Bearings/Cast-Iron-Pillow-Block-Bearings/?page_no=1&page_length=9999