Diawa,s Bearing Stabilizer????

[gstours]

I noticed some wording in a Diawa Tournament Lever Drag Advertisement (sttld20-30-50) that stated the reel has a "mainshaft bearing stabilizer" and it "prevents excess side pressure on spool bearings" regardless of drag tension.
    This sounds interesting as leverdrag reels can suffer pinion bearing damage due to excessive side pressure exerted on this bearing.
So what is Diawa doing from the design standpoint?   Does it work, Do these reels (diawa sttldII) have fewer problems do to this design?   What is the stabilizer talked about?    I,m thinking maybe a spacer or spool between the spool bearings???
  Any input or ideas will help us all to learn..... Is this a myth and an advertising ploy to rename a part to make it unique?
Its something new that I questions about!      Thanks   gst.

[foakes]

Hi Gary --

It is likely the bearing that rests on top of the larger outboard gear. 

The driveshaft goes through the gears -- and there is a collar between the gear and this bearing.

Stabilizes the driveshaft better than a bushing -- since it is lubable, stronger. and keeps the driveshaft solidly supported and centered under a heavy crank condition.

But basically, it is also a flowery description for a support bearing.

You are right, this is a potential weak point if not supported.

These reels have (6) good bearings, if I recall.

Best,

Fred

[Robert Janssen]

It appears to be just a regular  bearing sleeve, and the rest is advertising fluff.

.

[gstours]

Thanks so far for some explanations.  But in all lever drag reels does not the heavy drag pressure exert a sideways thrust to the opposite side bearing?  It seems this is why the reels are more difficult to crank the gears when the bearing can not handle this side loading so I assume more friction is produced to the race or somewhere in the bearing.   
   There must be a design change like larger bearings being used now with the advent of hi drag settings for these newer reels being produced?   I,m not really up to speed on whats going on with the new reels.
   It seems like with fast retrieval rates this side thrust problem would be greater with high drag settings.

[Robert Janssen]

Yes, to what you said above. On the other hand, by the time some of the advertising companies get done with their advertising fluff, you'd think the reels were capable of flying to Mars at any time.

I must admit I made a mistake above, by not following the exact model number (Daiwa has a lot... SLD this, SDLS that, SAGHNBXFII the other thing...) so I first just only looked at this, which happens to be the only mention of a bearing stabilizer on their website:

And then, realizing you had mentioned a specific model, I looked at the schematic, which shows nothing interesting at all. Just another clone reel, no sleeve. Of course, they could have added one recently.

[Robert Janssen]

Addendum:

HOWEVER the schematic for a similar reel located at http://www.daiwa.com/Documents/PartsDiagram/STTLD20T-2SPDBIG-LD30T2SPDBIG.pdf  DOES show a bearing sleeve.

(which they deserve some cred for. Not all manufacturers bother to do this. Ten-twelve years ago, none did.)

...and oh, before i stop typing, i might as well mention like so many times before, that the bearing sleeve does nothing to prevent sideways load and binding in association with drag pressure. Nothing.

It does on the other hand aid freespool.

Much later edit & addendum:
Actually, the ad fluff is true... since the big Tournament reels use a double disc drag over on the far end, the sleeve actually does unload the spool bearings completely. On the other hand, that only means that the bearings in the sideplates take that load instead. So win/win, lose/lose, even/steven...

.

.

[gstours]

Thanks for the picture of the "solved problem"..... and the further discussion with us on a problem.
   The reason I said problem is that with the advent of super braids many of us are using much smaller reels than we would if we had to have a spool of "fat line" and stressing the poor reels to hear them cry!    Thats the fun of it.
  It seems like the bearing size might be the place to look for improvement?  I think in some reels at least there is room for a larger diameter bearing machined and fit in the smaller stock ones place.
   I also thought of an idea of adding a shoulder (or snap ring) to the axelshaft on the opposite side inside if the spool bearing to accept some (most,some,all?) of the pressure of the shaft and side load exerted by the drag plate......
   Please correct me if i,m assuming incorrectly that this side thrust couldn't be stopped this way!   I may not understand the mechanical action that takes place when the drag lever cam pushes the spool against the drag plate.
  I am open for criticism but thats ok,  cause want to learn what goes on in there.
Thanks for any and all input.   gst. 

[Robert Janssen]

Actually, this subject has been discussed ad infinitum both here and otherwhere for ages. But yes, bigger / better bearings for the application are an interesting place to start.

Ideas with spacers and c-clips and whatnot only lead so far, in that there is always  --always-- one fundamental issue going on, in all lever drag reels: sideways pressure, in combination with rolling.

And somewhere, somehow, that almost inevitably ends in the bearings, regardless of whether the reel is from Penncurate or Shimabu or Daiwavet or Releaseverol or whoever.

.

[gstours]

Yes Mr. Robert you are right again.  Its not a problem for 99% of the people holding a reel.  But reel manufacturers have to sell reels at a profit to the masses to stay in business.  I think reels have come a long ways for sure. But they will continue to improve things like as technology advances.   This is good for the consumer weather it is phones, laptops, or reels.  Look at what they have done with automobiles, you cant even hear a new one running.  So I guess we should wait for new stuff as we try to wear out the stuff we have!
    I now think a drag disk on each side of the reel is the answer as Accurate Reels makes is a smooth expensive solution.  But also was thinking of the disk brake idea with a tiny caliper and brake pads to pinch the disk......ya tiny, but powerful and there would be no side thrust on the spool.  Ya i,m crazy.  I already know im dreaming of  a great idea.   Like space travel!    Crazy Man!!!!!

[swill88]

Yes Mr. Robert you are right again.  Its not a problem for 99% of the people holding a reel.  But reel manufacturers have to sell reels at a profit to the masses to stay in business.  I think reels have come a long ways for sure. But they will continue to improve things like as technology advances.   This is good for the consumer weather it is phones, laptops, or reels.  Look at what they have done with automobiles, you cant even hear a new one running.  So I guess we should wait for new stuff as we try to wear out the stuff we have!
    I now think a drag disk on each side of the reel is the answer as Accurate Reels makes is a smooth expensive solution.  But also was thinking of the disk brake idea with a tiny caliper and brake pads to pinch the disk......ya tiny, but powerful and there would be no side thrust on the spool.  Ya i,m crazy.  I already know im dreaming of  a great idea.   Like space travel!    Crazy Man!!!!!

This is the best idea I've all year!

[gstours]

 Maybe a mars son will intercept this post,  I bet the crafty chineese could do it this year,  as they are already geared up for taking our dollar,  as you can buy a 10 ball bearing spinning reel in about any size for less than $10 including shipping.       but evolution takes time.  So we must wait for a new reel to come out to run thru the paces!    Waiting is free but  the undertaker does it.  And he's waiting for you and me!

[twotone]

Did you see Aiala post the aliens are being drawn to earth from the lighthouse on the tail plate. I,m glad that they are from a planet that fish and others here are getting their subliminal messages. Call it evolution or improvement. Someone is always watching and making it better.