Bearing type Shaft Log Seal

[HB Vic]

It's just that piece that's connected to that black rubber hose. Has a seal and a bearing that the prop shaft slides through.

I just realized this was the seal, not the shaft. But out of curiosity, do they balance the shafts? Not a lot of centrifugal force but mass is mass. And balanced mass is better than unbalanced mass

[djunkie]

I just realized this was the seal, not the shaft. But out of curiosity, do they balance the shafts? Not a lot of centrifugal force but mass is mass. And balanced mass is better than unbalanced mass

I haven't had to buy a new prop shaft yet luckily so I'm not exactly sure what the process is for making those.

[Sharp shooter]

I just realized this was the seal, not the shaft. But out of curiosity, do they balance the shafts? Not a lot of centrifugal force but mass is mass. And balanced mass is better than unbalanced mass

I could be wrong, but I don't think they are Vic.

Here's Rex's prop shaft page with description. http://rexmar.com/page133.html

[HB Vic]

I could be wrong, but I don't think they are Vic.

Here's Rex's prop shaft page with description. http://rexmar.com/page133.html

Interesting. I know drive shafts, at least quality shafts, are balanced. Of course they're a little larger in diameter. More centrifugal force. But we balance shafts as small as 1/2", so it may be beneficial to balance these imo

[GN107]

Prop shafts are not balanced like a drive shaft, but they are checked for straightness. If they are not straight they can be straightened. But not if they are bent too much. In that case you would just get a new prop shaft and check it for straightness

[HB Vic]

Prop shafts are not balanced like a drive shaft, but they are checked for straightness. If they are not straight they can be straightened. But not if they are bent too much. In that case you would just get a new prop shaft and check it for straightness

TIR? Makes sense. But wouldn't balancing be beneficial?

[GN107]

In order to balance something you have to either add weight or take away material. If you were to add material to the prop shaft you would never get it thru the bearings. If you were to grind away material you would make it weaker. I am by no way a consultant on balancing though. I don't think a prop shaft being only 1 to 1-1/8" in diameter and being made of a solid bar would be effected as much in balance as it would in being straight

[2manymustangs]

THe shafts are so small in diameter and so uniform in shape that the balance wouldnt be a factor so long as it is straight.

STEVE-O was checking with someone on a new material for race shafts... Saltwater/rust would be a factor for the TUFF STUFF that is used in race car axles BUT on a race boat where the shaft is being yanked out and magnafluxed/inspected after every race or heat or weekend thats a non issue...

I would dial up the boyz from Mark Williams, give them the print dimensions and they could build a shaft that would NEVER break, BET...

Steve-O , GN7 and I were kicking this around a while back but Steve didn't report his findings yet

I would pick a spline that the prop boyz like and spline the carbon steel shaft to match, and have a shaft that

A) has to be pulled out and oiled/pickled and

B) would NEVER break in in applications less than TF...

Maybe an iridite finish or TiN finish (titanium nitride) so it has some corrosion resistance... Everyone would say "oooo, a gold plated prop shaft"...