Search results for query: *

Thank you for the responses gentlemen. I think I will recommend the grease as an option I may also look at using some silicone.

I appreciate the responses gentlemen. I have looked up galvanic corrosion and have noted that the two materials are not that far from each other on the chart. But I have read that the distance from each other on the chart doesn't necessary have anything to do with the rate of corrosion. The rate...

thread307-108364 We currently have a product where we are supplying Titanium ASTM B348 Grade 2 Bolts, washers, and nuts specified by our customer. These bolts will be in contact with 316 Stainless steel sleeves that we have bonded into our polyurethane parts. The possible contact areas will be...

My company currently has Cosmosworks Advanced professional. We are a company that specializes in cast polyurethane. I have very little to no experience with FEA so I'm looking for a starting point. Gbor would you recommend this book to someone who will be using FEA for the analysis of polymers...

Hello Deserfox, Thanks for the responses guys. The fillet will be at least a .25" R. That is what I used in the calculations that I have attached above. Regards

It isn't the case were the customer started to design and we took over they just asked to stay with a 3" roller bearing. It was basically their only input. We are going to produce 36 of these polyurethane rollers. The application for them is to assist in the laying of a concrete coated pipeline...

Thank you for the response wahoo88. I know that there will be horizontal forces that act on the surface of the polyurethane but I assumed that this force will be negligible at the shaft. The shaft does step down because the customer wanted to use a 3" pillow block bearing and I calculated that a...

Sorry I tried to attach both pages in one post but it only attached the 2nd page, so here is the 1st page.http://files.engineering.com/getfile.aspx?folder=de15c4f5-32f0-4e02-b083-d277e7cd970c&file=Roller_Calc_Page_1.jpg

I have incuded a Free Body Diagram of what I was talking about and some of the calculations to show what I was doing. Does any of this throw up any red flags?? Also if there is no stated saftey factor or design factor is there a widely use value for certain...

Anyone have any other thoughts about sizing this shaft??

dvd thanks for the response, The polyurethane is poured into a mold (in which the shafts are centered) as a liquid around the shafts and cured. The shafts are lightly blasted and a adhesive is also applied to them before the polyurethane is poured. Our customer already has a specific bearing...

Hello all!, First time posting. I am confronted in sizing a shaft for a polyurethane v-roller. The roller will carry pipes of various sizes. The shaft will be supported with a pillow block bearing on each end. There will be no torque applied to the shafts b/c the pipe is being pulled along the...