Recent content by FredEvans

Lionel- you hit the nail on the head- yes I do have a lot of starting and stopping like maybe start- run 20 seconds - stop 5 sec - run 20 secs - again and again so the . (I dont want to put in a clutch) . so for this duty - what about a start and stop switch with a contactor? thanks for the...

I think the gist of the replies is why i want to go to 380 my experience with 220 volt motors may be at fault. ( I should perhaps rather have asked about changing from single phase to 3 phase ??) my single phase 220 volt motors are usually started by a condensor. in continued on and off usage...

Hello all, I own a small factory manufacturing engineering components and need to wire up a .55 kw 380 volt electric motor to run off 220 volts. I am not a "sparky" but i will get my sparky to do the wiring up. my question is how is the cheapest method to do the job. I want 380 volt because...

Hello There-- Can anyone help me with a manual for a walter grinder?? I have one and would like to see what it can do!! regards fred evans

In a solidworks tutorial i need to add a relationship between two holes drilled in a plate help page for adding relations explains that i should go to insert>featureworks>recognise features When I go there- the recognise features option is greyed out?? Can anyone please help?? regards fred

I am looking for machining tolerances to be used when specifying tolerances on machined plastic components ( teflon,delrin and nylon,poluurethane) It would be appreciated if anyone could point me in the right direction Best regards from south africa fred evans

Thanks for the info Norm-- I recognise the part from your description. I am looking for information on a suspension system where there is incorporated into the arrangement a clevis or fork holding a rod which is then able to pivot on the clevis. The information is required to show that this...

Could someone tell me what a split bush is ??

If you are looking for impact absorption have you thought of polyurethane? the material, being elastic , will absorb a certain amount of the impact as maybe the "Bounce" is caused by the cardboard roll rather than the starwheel. In a similar aplication that I once saw the star wheel...

I concur with patprimmer Interesting Line of thought and worthy of repeating here is the danger of spraypainting of motor cycle crash helmets. The solvents used result in the destruction of the properties of the helmet rendering if only marginally more effective in the case of impact than the...

I could do this is urethane-- send details and i will give further information Fred Evans From South africa

Yes I Can do this please send me drawings and I will give you a quote best regards fred evans from South Africa

Cant help you on this question but BASF in germany make elastollan and they will have the answer regards from sout africa fred evans polyflexseals

we have done a bit of work on this ? what is the specifiv application? ( We are convert PU In South africa) regards