Recent content by whitetop

It looks like you're in the range of 9mm shim allowance. Why not use two .125 solid shims and provide one .125 laminated shim under each motor foot. The laminated shim is peelable in 0.002 inch and available from AccuTrex Products, Inc. This gives you a range of .250 non-adjustable and .125...

dimi81 Since you are concerned about the contact pressure at the joint, the hub must not be sliding along the hex. The coupling is more than likely at the end of the shaft so why not make it easy for yourself and turn the hex to the diameter across flats and add a key? Now everything is "text...

Hi xydrex, There is a hob available to generate T5 belt pulleys in the range of 51-114 teeth which should meet your requirements. I don't know where you are located but here is a tool company located in England. http://www.acedes.co.uk/index.htm I would expect that if the hob is available in...

Be cautious MF44, not all worm/worm wheel sets are self locking and according to "Murphy" if you are relying on them to lock, they will back drive. NEVER count on a worm/worm wheel set to not be over powered by the load and when safety is involved ALWAYS use a braking system to secure the input...

Okay, how is everyong else getting their subject lines to by bold type?

Piping has standards for joint flanges; does the same apply to ducting or are they all custom based on the system? If there are standards will someone please point me in the right direction?

I want to thank everyone for their responses and concerns. It sounds as though the application, the efficiency and maybe even some luck will determine if the unit can be back-driven. It appears that the only way to find out if the gear reducer in question can be back-driven by the load or...

Can a hypoid gear reducer, 25:1 ratio, be back driven through the output shaft?

Clarification: unclesyd; the parts being joined are crossed angles of the two materials, the welds are intended to be fillets. I probably would not specify (limited knowledge) the weld process leaving it to the fab shop to determine. metengr; the environment is indoors with temperature and...

This is a low load requirement weld using 309 filler to weld 304/304L to A36. If the weld isn't purged will the resulting "sugar" affect the strength of the joint or is it just a cosmetic problem? Maybe I should also be asking what transformation causes the "sugar"? This is a machine...

Thanks doct9960 for pointing me in the right direction. It looks to me to be 7075-T651. You deserve a star for the quick and helpful response.

All of the equipment on one of our film casting lines was designed and built by a Japanese machine builder. One component needs some restructuring and the builder has told us the material is ANP-79 (I'm not sure if there is a hyphen, space or nothing before the 79). Can anyone tell me what the...

MikeHalloran: Thanks for the reply. I should have defined the application more thoroughly. The design included a thrust bearing to prevent the shaft from moving axially in the only direction that I thought would be a problem. At one end of the shaft sits a bevel gear pinion; the thrust of...

I am having a problem with axial shaft thrusting in a design of a continuously rotating shaft supported on caged needle bearings. I was under the impression that one purpose of the cage was to prevent needle skewing and transforming the bearing into a threaded nut. Where did I go wrong?