I will be looking to add a cushcraft m5ab mini beam (35lbs, and 3.35sq windload) along with a yaesu g-450a rotor to my 7-40 universal aluminum tower. Question is should I be concerned with using a th
A thrust bearing provides two functions... 1. Vertical load support (not really the right bearing for this application for most thrust bearings). 2. Lateral support (exactly what most thrust bearings
Just to echo Dino's opinion, maybe phrased a bit differently but with the same intent; with the small anenna and wind load you really don't need either vertical or lateral support. OTOH a carefully a
windload) along with a yaesu g-450a rotor to my 7-40 universal aluminum tower. Question is should I be concerned with using a thrust bearing? I wont be looking to add anything more later since I have
I am installing a Rohn 55G and got on their website and printed their info sheet on their base installation recommendation. It would probably be the same as with most towers. The 55g base plans are m
Reviving this, 3 years old, subject... I am about to install 30' of Rohn 25 tower with MQ-26 (5 HF Bands 2 element) on it rotated by Yaesu G-450. I understand that antenna itself is pretty light and
Alex, Naw...it will be fine if your mast is going through the top section sleeve. Thanks & 73, Gordon Beattie, W2TTT 201.314.6964 Reviving this, 3 years old, subject... I am about to install 30' of R
There are bushings available to go inside the Rohn top section http://www.3starinc.com/rohn_25ag_45ag_section_tower_bushing_r-tb50.html http://www.3starinc.com/rohn_25ag_45ag_section_tower_bushing_r-
Not really needed unless the mast is notably smaller than the sleeve. I might go as far as wrapping the mast that will be inside the sleeve with PVC sheet to serve as a bearing/protection for the mas
OK thanks Roger. I see now that they are really reducers and not bushes hence the material that they are made of. I have put a mast up through the Rohn 25 top piece in the past and it worked perfectl