This is a bit of a brainstorming exercise, so all comments are welcome:
Looking for the most compact way to store and release energy in a particular application: Here are the specs.
Less than one kg weight.
As small as possible
Less than $50 USD
Takes in mechanical or...
Trying to replace the grease in part of our system with a dry film lubricant. The application is for a ball bearing (chrome steel) running in a helical (Rc 60 D2 steel) track. The high pressure on the ball (~100ksi) and the twisting, scuffing motion at the contact patch causes the system to...
Looking for a material that has a high coefficient of friction ( >.5) and is capable of withstanding very infrequent high energy stops (3ms duration with 1000W/in^2 energy at surface every 2 seconds). Temperature of rotor rises to about 100F from room temp under heavy use.
Currently, we are...
I have a rotating member in one of our products that is spinning at a relatively high rate of speed (18,000 RPM). I would like to get this component balanced to reduce vibration, etc. I am thinking of using the specs from a electric motor armature of similar size (maybe a 48mm motor) and...
We currently make a product using a sintered bronze clutch material in a clutch-flywheel arrangement. The material is subjected to a maximum of 3800 fpm relative movement and a maximum pressure of 1500 psi. It runs against a 4140 flywheel machined to a 32 mi finish. Coefficient is around .19...
We currently make a product using a sintered bronze clutch material in a cone clutch arrangement. The material is subjected to a maximum of 3800 fpm relative movement and a maximum pressure of 1500 psi. It runs against a 4140 flywheel machined to a 32 mi finish. Coefficient is around .19...
We're using the HRx scale to do hardness checks on some sintered bronze materials which are too soft to use other, more standard scales. The HRx scale uses a 1/4" indenter and a 15kg load. I've been unable to find much info on this scale, but I'd like to get a better physical feel for the...
Having some excessive wear issues with some of the brushes on our DC products. Anyone out there with any good info re: how to diagnose and correct the root causes of excessive brush wear in fractional HP DC motors?
Thinking about using PCMs as a sink to absorb extra thermal energy from intermittent heating of electronic components. Anyone with experience with the pros and cons of PCMs or links to any good contacts or manufacturers? All help is appreciated.
FYI - I've also listed this link in the heat...
Thinking about using PCMs as a sink to absorb extra thermal energy from intermittent heating of electronic components. Anyone with experience with the pros and cons of PCMs or links to any good contacts or manufacturers? All help is appreciated.
Need some help with this one. Anyone know of a source for universal motors that have roughly a 1.4" OD and are ~ 2.5" long? I'm working on a design where this would be very nice to have, but I have yet to find any that work in this package. Any suggestions are appreciated.
In one of the projects I am working on, we need to have a very high strength, high flexibility connection between a rotating pulley and a linearly moving slide mechanisim. We are currently exploring the use of aramid fiber ropes for this connection.
My question is: Has anyone used aramid...
I'm currently using a small (35mm can) motor to ramp a 2" dia x .5" wide flywheel from 0 to 15K RPM in ~ .5s. Because of the inefficiency of the motor at the low-end range, I am exploring both mechanical and electrical improvements to the current design. I belive that you can link to...
I am currently using a brush-type DC motor to drive a relatively high inertia flywheel from 0 to 15K RPM in approx. .5 sec with a DC source (battery).
The problem I am running into is that with a single, always-on gear ratio, we spend too much time in the high current, low speed, low...
