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The Toney foale software is good...it gives all the info you need from pivot forces wheel rates and spring calcs for front and rear go to Tony foales Web site and download the users manual PDf the software itself was very cheap I am an Engineer and can work all this stuff out from first...

Thanks That was a very good answer So, if under accel ( throttle pinned ) I am about 30 to 50 % of aval wheel travel Then with that set up I can have a look at the rising rate ,,,My local track is tight and twisty with only 2 big jumps with a g out before both ,, So may need more of a rising...

Yes I have done that, I Have the Tony foale Soft ware ( very convienient ) I an trying to reduce the spring preload as much as possible while using the softest spring I can get away with If I shorten the Linkage arm ( NOT) the swingarm ,,the swingarm altitude changes from -4.3 to -6.9 I...

As the suspension ( prolink honda) goes through its motions the swingarm goes through the arc of say -6 to 15 deg what effect does this angle have on traction The wheel base effectively gets shorter, So the wieght would I assume tend towards the rear and the front would lift If I made the...

Hi there Can anyone help What effects on the bikes handling/traction does the change in Swing arm angle have Kind regards Stephen

oops sorry about that 37lb is still 16 kg!! and yes They would (the comments that is) look at even a slow rotating childs bike wheel even 5 grams out of balance has the thing hopping around ... 37 kg at 3800 on a 2 inch shaft !! ( I would watch through the window!! that would be fun!! sorry...

Just my 2 cents worth here 37 kg spinning at 3800 rpm would impose a wee bit of bearing load if it was unbalanced.. I would be looking at what others have mentioned and those bearing engineers or at least the ones I have spoken to really are helpfull ( it save me a wee bit of time ) Also it...

I may have used the wrong terms ! sorry , but I was refering to the balls used in cheap pushbike cup and cone steering head bearings I muck around with an old Motorcycle that is now manufactured in india While the manufactering is getting better some parts leave A LOT to be desired Anyway...

No just the loose balls , the ones on cheap cup and cone races . do they follow any tolerancing code The C value?? I was asked this question and the references I have dont mention and web sites dont either Thanks for the reply Stephen

Does anyone know what sort of tolerances are applied to loose ball bearing in their manufacture , and if they use a tolerancing nummering system kind regard Stephen

Hi there I have no choice in the loads, Starting on them soon The Geometry in the original set is all over the show( I think ) Lubrication it sits in an oil bath I will have the material specs tonite so can make a choice from there Also Would it be better the helix angle of the worm gear...

Thanks for the replies Sorry for the delay the computer has gremilins inside ..and was not loading drivers ,, The set up of this bike is ,,,the Shaft is the worm gear ( sorry for the earlier post I didnt see the missing word ) and the worm is hardened single start with a lead of 4 deg...

Sorry all this has been been bought up before I know it but cant find the thread I want to draw a helix both a spring and a worm gear, Now I know you add a lisp to acad ( 2000 ) but where when and how ,,, Never had the need to use one till now Sorry if this goes over old ground Stephen

I have in front of me a worm set which is prone to stripping the gears on the worm gear ( machined into the shaft ) It is an oil pump drive from an old Enfield Motorcycle The shaft is made of a soft steel and its teeth ( worm gear ) appear to be fly cut into the shaft along the axis to the...

Thanks to those replys I now have a way of doing it ...thanks once again Stephen

Ha now you have done it an excuse to purchase another book ...she who must be obeyed will shoot me Still its all in a good cause Thanks so much for all the help , I did a bit of checking and came up the same ally as u suggested , So i will look into that book ( please let it be cheap at...

Yes I an sticking on this point to , need to examine the crack .. I am un aware of how to get from the crack length to the toughness test .. I will have to do a bit of noseying around , the books I have arnt much help here ( Mechanical , by shigley ) Thanks it gives me something to think about...

Finding the load from a crack Hello there, Could some one with a bit more experience guide me here, Is it possible to arrive at a figure for loading from a cracked part. I have a poorly designed bracket , that has cracked, What I was thinking was if the crack was to to a shear failure , then...

Thanks to all those who replied, you really did help a lot ,thanks First I set the ucs to view a face then looked for small dots As I have been drawing Some how I had made one view microscopic and yes I saw the dot move Thanks all once again Stephen

Thank you ,it was the Ucs worked fine also cured the disappearing view of mensioned in the last post ..Thank you Stephen