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I don't understand what you are talking about. Can you provide further explanation? Thank-you very much.

Rinsuke, For more info, contact George Gianopulos & Associates, Dayton, Ohio. Phone 937-274-2996. Matt

Rinsuke, I am aware of someone who is developing a new type of "bearingless planetary" for a similar load, speed, and reduction ratio application. Target cost is $400 per unit, building 100 units at a time. Unit cost could be reduced if larger production is planned. Weight is under 5...

From page 138 of "Manual Gearbox Design" by Alec Stokes, "To prevent the face dogs slipping out of engagement while under load, they should be manufactured with a retaining reverse angle of between 5 degrees and 7.5 degrees on their mating faces. This means that the nose or outer...

I am helping someone with a new project. He will have production volumes of 50-100 units at a time. The unit has 11 gears. 5 simple spur gears, 20 pitch, .5-1.5 inch diameter; 4 planet gears about 1 inch in diameter and 14 pitch, and a ring gear that is 3 inches in diameter. Of course it is...

Alec Stokes wrote a book, "Manual Gearbox Design", that I believe has that information. I could not find the book this morning, I will continue to look. I also have a paper by a Chrysler engineer, I am still looking for it. Hope to have an answer by tomorrow.

EnglishMuffin, I was not referring to Novikov gears, although I do believe Novikov gears do have unrecognized advantages. For Novikov gears, I would recommend contacting Dr. Stepan Lunin, his contact information is at www.zakgear.com. I was referring to S type gears, and derivatives of S gears...

One of the primary advantages of non-involute gears is that it is possible to dramatically reduce sliding losses in gear meshes. I am so tired, of the so called gear "experts", who keep insisting involute meshes are always so efficient. I won't even talk to them anymore. Involute gears...

Horizontal, you are pulling the coefficient of friction times 450 lbs, or about 150 lbs. At 45 degrees, to be safe, I would make sure you can handle the full 450 lbs.

Plastic gears usually are ok to 1 hp.

You might try George Bowers at 765-349-9828.

If we put a flat on the side of the pin to let the air out, would loctite work ok? There is a loctite UK website that indicates loctite works well on press fit pins. I know that roll pins do work lose. I just need assurance that the groove pin absolutely will not work lose before I can propose...

Would loctite be ok?

We have vibration under unusual situations - usually when we have not balanced the assembly correctly. Thanks for the websites!

We currently pin two concentric shafts to form a torquemeter. We use five pins around the circumference of the shafts. The pins are inserted radially from the outside. We weld over the tops of the pins to insure they do not come loose under heavy vibration. We would like to eliminate the weld...

Nitrided parts grow, but distortion is low. So account for it in processing. I remember .001 in/inch. I will look it up tonight in a book I have at home.

didear, email me with all your detail gear information at mhawkns@aol.com. I can supply autocad cycloidal gears very rapidly. They will not be to the British Standard, as that would take me more time to research and generate. The tooth forms will be cycloidal, and will work well for a new...

There was an AGMA paper published by Bernie Berlinger? about achieving high ratios with few pinon teeth. Evoloid?

I have designed both "multiple path" and planetary gearing for turboprop gearboxes. My guess is that simple gearing is used for the first stage or two, and the planetary used for the final stage, based on gears being sized by torque. The planetary is used for the high torque part of...

strokersix, In 1996 I had to design some gears that ran hot and dry. We had two solutions. If the speed is very very slow <1000 ft/min, and contact stress under about 80 ksi, then you can use tungsten carbide flame sprayed on the gear teeth. It the compressive stress is over 80 ksi, and/or the...