Search results for query: *

Thanks ExRanger. There are some many coatings out there it boggles my mind. I am getting protos of custom 465 H900 gears and sending them out for TiN coating. The surface finish is Ra=.8 or 32 microinch. I really wanted to get a DLC coating, but I could not find a vendor to do a proto quick turn...

Here is more clarity on the application/problem. Currently the device works well with a moly lubricant, but this is a prototype. I need to get the gears to run smoothly with no lubricant. We don't want to seal the unit. My understanding is the TiN coating is HRc 70. I need it for wear...

Good point about disimilar metals. I still get galling when using 17-4 h900 and custom 455 h900 on a different application. Contact stresses just too high. I just sent a sent a set of gears out for TiN coating using vapor deposition. The thickness is about 1.6 micron, so I shouldn't have...

It is a medical instrument, so I need to use approved classes of materials. One other material that I could possibly use is cobalt chrome CoCr. I read a thread about molykote 106 from Dow and I am looking into this also.

Any advise on preventing galling on stainless steel gears running dry (no lube). Spur gears are running about 120 rpm and dp24. I was thinking of using gall-tough, but it is not so easy to source. So I am thinking of DLC (diamond like coating), or some other coating. Thanks for any advice...

I don't think I can tune it very much. I am locked into certain materials and size constraints. I can vary the diameter, wall thickness and height of the chamber small amounts. I might be able to add small geometric features such as grooves and holes also. So maybe I can. Any suggestions based...

Hello, A metallurgist told me it is common practice to silver plate stainless steel gears that run un-lubricated to prevent galling. I am assuming it is an electro plate (like silver plated flatware). Does anyone have info on properties and performance of this type of arrangement? Thanks...

Greg, I guess I am not sure what you mean by an external drive. This is a hand-operated instrument. It gets sterilized in an autoclave after surgery. Picture a long shaft within a hollow shaft. At one end is a hex driver, and at the other end is a t-handle to twist the wrench (apply torque)...

The temperature is 275 F in a steam environment and held for 15 min. The wrench is hand operated by twisting a handle on one end of the wrench. Thanks.

Hello, I am trying to create a strong vibration inside of a small cylinder. It is for a torque wrench and will be subjected to autoclaving and will not be lubricated. The way it currently works is to twist a torsion beam to set the correct torque on the fastener. Picture a cylindrical tube and...