Recent content by TexasRotorHead

Im sorry for the simple question, but I am having a small difficulty with this problem I am having. Basically, I need to tap a blind 5/8-8 hole into an aluminum piece I have made. Almost all of the taps I have found are tandem, so I cannot use them. There are also roughing and finishing sets...

I chose the Dell because I got a SCREAMING deal. I purchased an off lease laptop with the specs above (3.06 Core2 Extreme, 1920x1200, 4gb...) for $900 shipped. That is why I chose the Dell. That being said, here are the good/bad. It has a 3 button touchpad + 3 button touchstick. This is...

I was in your situation recently. My list: Dell Precision Line Lenovo Thinkpad W Series HP Elitebook Workstation Out of those, I chose a Dell Precision M4400 because I found a screaming deal. I run 32 bit Windows 7, 3.06 Core2 Extreme, 4gb ram, Quadro 770M, 1920x1200 screen. I cant ask for...

Im pretty sure it is in the roller bearing catalog. The tolerances can also be found on the Timken page "for engineers"

So I went and sat down with a local heat treating company and they suggested either a gas quenching or possibly a salt bath heat treatment. Are any of you familiar with the IntensiQuench process? From what I have seen, there are a few types of quenching that minimize distortion: Gas quenching...

I spoke to the welder and the weld filler was all 4130, so that is really good news. Here is a picture of the frame. There are 2 separate pieces. One piece slides on the other. This should give you a better idea of what we are working with. Thanks...

Swall, do you have any more information about vacuum heat treatments with gas quenching? The tubes were all normalized prior to welding.

I currently have a welded structure made of various wall thickness 4130 square tubing. The tubing is all 1x1 inch with wall thicknesses ranging from .035 to .125 inches. The tubes have varying lengths between 4 to 18 inches and are interconnected. I do not know exactly how the welds were...

DanDwig, I have tried finding 2 1/8 ID tubing, but I have had no luck in anything besides 6061 with close to 65mm OD. I have found 4130/4140, but nothing in 7075 or even 2024. Unclesyd, is there a reason you would avoid 2024? Does it not take well to torsional loads? GregLocock, this is a...

If you were to make a hollow shaft with the following dimensions, how would you do it? OD - 65.000mm/64.95mm ID - 56mm/54mm Length ~ 500mm There will be no bearings directly run on said shafts. The shafts will be under approximately 50-60 MPa of stress and will be rotating at 2000 RPM. I...

Hello All, Right now I am designing a steel structure out of 4130 steel. I have designed in some bearing holders to be welded in, but have had a difficult time finding a supplier for the material. The bearing holder is a flanged design with an OD of 6 inches and bearing surface of 4.156...

You guys are right, I was mistaken on the bearing tolerance (units are killing me right now). I think I have found a design around the internal steps. I appreciate your help.

The design requires a hollow shaft. The wall thickness is variable, but as a starting point 40mm is used. How much would a chemical bond like loctite increase the holding power?

Here is a simplified drawing. This also includes the exterior features. I am not worried about these right now. Machine shops are notoriously slow on quotes, so before I start asking for quotes, I want to see where I am ballpark wise. Basically if I should proceed or find a new design...

Any advise on how to attach a pulley to a hollow shaft? Background info: Shaft Material: Steel (exact type not determined) Pulley Type: Synchronous Belt (14M 6.32" Pitch Diameter, 2000 RPM, 125HP, 315 ft-lbs TQ) Shaft OD: 50mm Shaft ID: 40mm My initial thought is taper lock bushings (2517...