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
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...
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...
Again This is related to my other post
Is there any way I view a face of a 3d component , I had to rotate it then wanted it back so I could view the top face , but its slightly off, how can I view the top face square on
I am sorry I do have the big book in front of me ,, but a chocolate...
Sorry folks
But I have a strange thing happening, I drew a componet in 3d , then What I do in layout I use soldraw etc. But when I am in model space and execute a view comand such as rotate or 3d view The object disappears and becomes a microscopic dot the the void known as model space
I...
Hi there
I am usually found lurking over in the mechanical section, but was asked a question the other day which is beyond me ]
In a Spark igintion , coil points ignition system. What is secondary capacitance
Someone was using this calculator and didnt know what the last term was...
Hi there
I have posted before but couldnt get an answer. Desperately need a K valve ( wear co efficient) for Steel upon steel * sae 4140 against Sae 1040 - I not sure of the 1040, I am assuming here.
I need to estimate the waer on a rotating rod
The Hardness of the 4140 is in the region of...
I wonder if anyone can help. I drew a oil filter coner , ita an 1/2 circle about 50 mm dia, with a tube out of one side. When I used SECTION and made a sectional cut, It wouldnt hatch. I went into the hatch window clicked everything to no avail. I drew another cylinder in another drawing...
We have an oil aeration problem. A piston pump must draw aerated oil. Then it supplys that oil to a bearing. Trouble is the bearing isnt receiving enough oil. Due to the bubbly nature of the oil .
We would like to reduce the amount of air in the oil before it enters the pump. Any Ideas anyone...
Can anyone help with this
we have a bearing currently its scintered iron with a steel shaft the length/ dia ratio is 35mm/16mm
The lubrication is scanty and the shaft if a reciprocating in nature, The lube temp is 90 degc tending to 120 sometimes. The oil used is 60W sae at approx 0.038...
I wonder if any one could help
We are analysing a clutch, that has plate separation problems, Can anyone tell me or point me in the right direction as to oil shear. I want to know at at what distance from the surface the viscous drag be come close to nill...hopoe I phrased that right
The...
Does anyone have some info about Amco 45 and Amco 65 bronze..the yield points young modulus, hardness etc, cannot seem to find anything on the net
Thank you in advance
Stephen
Japan
Sorry folks , I am new to this list , let me intoduce my self , My name is Stephen , I design bits for motorcyles in particular..Royal Enfields,
The problem I am having with Acad is that the background will not show through a hole in a rendered drawing ...It did then I possibly fiddled with...
