I love your videos - thank you. Would you kindly consider doing videos on coaxial rotor helicopters (such as the Kamov Ka-25), and tiltrotor aircraft (AW609, Bell V-22 & V-280) in the future? Particularly what made tiltrotors difficult to develop and iron out its kinks.
I noticed in your renderings what looks like a possible grease port on the cross. Is that what it is, and if so, does that imply that the cross is hollow and can be filled with grease to lubricate the bushings/bearings that support the yokes of each shaft?
Yes, there is a grease fitting on the cross; that's what I intended. I'm sure there are u joints with sealed bearings, and no grease fittings, but I know for sure that a 1992 Jeep has grease fittings on the cross. I also used parts from McMaster-Carr as a reference for creating the 3d model and all the ones I saw had grease fittings... Although I didn't look at every available part.
A joint with a grease zerk fitting is called greasable, while one without the fitting is called sealed. Typically speaking, a greasable joint is more prone to failure and a sealed joint is more favorable. But, that's all dependent on whether or not the end user is good at regular maintenance and also what the application of the joint is. When applying to vehicles, a stock application (no modifications to engine power output or suspension) with regular maintenance will benefit greatly from a greasable joint. A heavily modified vehicle (even with regular maintenance) won't see the same benefit, due to the cross of the joint being hollow and therefore less strong. It's something to consider when selecting the right U joint for the job
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Cool animation. I knew this for a long time, but it was nice to see in operation.
Glad you liked it!
Bravo!! Another great video.
Thanks again!
I love your videos - thank you. Would you kindly consider doing videos on coaxial rotor helicopters (such as the Kamov Ka-25), and tiltrotor aircraft (AW609, Bell V-22 & V-280) in the future? Particularly what made tiltrotors difficult to develop and iron out its kinks.
Extraordinary vídeo. Thank you VERY MUCH and GREETINGS FROM BRAZIL.
Obrigado! And thanks for watching.
Thompson coupling is a CV (constant velocity)but gas many parts.
Great video!
Next do CV joints. 😆
Great suggestion!
Your animations are awesome. Can you make one about collective and cyclic mixing? Like a summing bellcrank.
That would be cool. I'll add it to my list. I'm working on one showing the balance of forces on a rotor blade now. Thanks for watching!
I noticed in your renderings what looks like a possible grease port on the cross.
Is that what it is, and if so, does that imply that the cross is hollow and can be filled with grease to lubricate the bushings/bearings that support the yokes of each shaft?
Yes, there is a grease fitting on the cross; that's what I intended. I'm sure there are u joints with sealed bearings, and no grease fittings, but I know for sure that a 1992 Jeep has grease fittings on the cross. I also used parts from McMaster-Carr as a reference for creating the 3d model and all the ones I saw had grease fittings... Although I didn't look at every available part.
@@bzig4929 In my experience, they do have grease fittings.
A joint with a grease zerk fitting is called greasable, while one without the fitting is called sealed. Typically speaking, a greasable joint is more prone to failure and a sealed joint is more favorable. But, that's all dependent on whether or not the end user is good at regular maintenance and also what the application of the joint is.
When applying to vehicles, a stock application (no modifications to engine power output or suspension) with regular maintenance will benefit greatly from a greasable joint.
A heavily modified vehicle (even with regular maintenance) won't see the same benefit, due to the cross of the joint being hollow and therefore less strong.
It's something to consider when selecting the right U joint for the job
Missed a trick to say 'look at the nipples' to see the diff.