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600 ft-lb? Now that I like.

Hi Pontiacjack, http://www.rbracing-rsr.com/clutchtech.html They have a clutch with relatively long "weight arms", so it appeared to me they were using leverage, not 1:1. They also use coil springs, which would have to be compressed before engagement occurred. At least thats how it appears in...

Hi thanks for all the input, It looks like there are at least two basic types of high power centrifugal clutches. Another type is http://www.rekluse.com/STFAQs.html which uses balls and ramps. It looks like springs are used to set the engagement rpm on both designs. The Crower design gets...

Does anyone understand how the Crowerglide centrifugal clutch works?

"Global Warming" - now called "Climate Change" - was/is a Trojan Horse for hidden agendas. To provide tax subsidy for technologies which make no economic sense - solar. To push nuclear energy as "green" - despite nuclear being extraordinarily dangerous - Chernobyl, potential terrorist attack...

VEGAN is stupid. There are no healthy Vegans in the long term. Humans evolved for a long time eating meat. Vegetarians in India eat things like dairy and eggs. This you can do. Being a Vegan is just plain ignorant.

China will be emitting twice the greenhouse gases the US is by 2012, according to Wikipedia. China is planning to build coal power plants for the next twenty years. Now, I can dig out the numbers, but the amount of electricity required to build a car is enormous, including what is used to make...

Thanks guys, I have it sorted out now. I appreciate this forum, as people are very helpful.

Hi, I need a sanity check. If I have a shaft at rest connecting through the bore of a sprag clutch, which is also the output shaft. And I have a faster running shaft connected to the od of the sprag. In normal operation, the faster running shaft connects to the output shaft through the sprag...

Its a good guess the gear wear is the problem. Install a new pinion and you will know for sure.

Patents - For a US patent, the key is the date of invention. You can publicly disclose your patent as long as you have documented the date of invention. Once you have publicly disclosed the invention, you get up to a year to file a provisional patent, which is only $100. Then by the end of...

To achieve load sharing in a planetary, often either, or both, the sun and ring gear are allowed to freely move radially. For example, the ring gear can be mounted on a splined connection, which is then connected to ground. In two stages of planetary gearing, if the carrier of one stage is...

I would assume this is a speed increaser, with carrier input, sun gear output, and fixed ring gear. If possible, use a common ring gear for all three stages, this helps alignment of the overall system. The input carriers are supported by bearings. The first carrier should be mounted on bearings...

I am too busy at the moment, but in a week or two I will get back and purchase your system. I have always thought in home size wind turbines (3-10kW) a simple gear stage is needed but usually missing, and using wooden gears made of lignum vitae might eliminate the need for lubrication, seals...

They look very nice! John Harrison made clock gears (1722) which to this day are still operating, even with no lubriction. The tower clock in Brocklesby Park has operated continuously for over 270 years. There are manufacturers of wooden clocks who might be interested, you can find them with a...

Does anyone have a convient reference for the tooth count in either the 1.76:1 or 1.82:1 Ravigneaux gear train in the Powerglide? Diametral pitch and helix angle? I think the 1.76:1 gears are 26-34-94 sun sun ring and 18-28 for the planets.

I am dimensioning a gear web. The web is at an angle which I want to define as basic. I want to specify the large corner radius as basic, and an intersection point between the corner radius and the straight section as basic. Is this correct?

Is this a simple planetary? the general eqn for a simple planetary is ws = -(alpha)(wr)+[(1+alpha)wc] where alpha is R/S. The eqn for the planet speed is: wp=[(2)(alpha)wr+{(1+aplha)/(1-alpha)]wc now you can subtract the two and get wp-ws =

Thanks everyone for the excellent suggestions. Yes the parts have to come apart. Two inches maximum od. 15000 lb push pull. I guess I agree Cory, sounds logical. Sleeve with pins sounds good also.

I want to connect two shafts directly to each other. They are small diameter and have large axial loads, they push and pull, but no torque. I can thread them together, but the required torque preload to prevent separation is very large. I am trying to eliminate a ball joint, which has wear. I do...