[TowerTalk] aircraft bearing

[Alan NV8A (ex. AB2OS)]

On 07/31/05 03:20 pm K8RI on Tower talk tossed the following ingredients 
into the ever-growing pot of cybersoup:

>>So what would you call a *taper* roller bearing? -- it supports loads in
>>two planes.

> A wheel bearing?
> 
> The original thread is on a gimbaled bearing meant to take side loads, not 
> vertical.  The gimbal allows for a change in shaft angle such as in landing 
> gear of other parts subject to extreme flexing.  Much smaller versions are 
> used in the control linkage to light aircraft control surfaces. They are 
> also in the ends of the throttle, mixture, and prop controls.
> 
> A block of hard wood soaked in a low viscosity oil, cut in two, bolted back 
> together and then drilled for the mast size will make a bearing that will 
> last longer than most hams.  However the mast surface should be smooth where 
> it fits in the bearing or it'll act like sand paper.  (The oil soaking comes 
> *after* the fabrication. <:-))  )

So you think that it's a waste of money to spend $100 each for one or 
more of the bearings that AN Wireless sells?

http://www.anwireless.com/bearing.html

Alan NV8A