On Sep 15, 11:20*pm, John Doe wrote:
" wrote:
I have 14 new in the box Torrington RC-061008 roller clutches.
They are ID 0.3750, OD 0.6250 and length of 0.500. The current
price I found was $4.96 each. I would sell them for $2.00 each
plus shipping.

Do they function under a radial load? Can they be used in a
dirty/dusty environment? Uhg. Too bad I don't have engineering
experience in everything I want to make.

No, I don't think any roller clutch will function with a side load.
That would make the rollers want to twist and quickly wear the housing
or the ramps that give the clutch action. And they are not sealed.
They have grease internally, so dust would not be good.

You may need to incorporate both bearings and clutches in your design.

If I may suggest something. Work on engineer parts or sections of your
design. Don't worry right now about power, speed, batteries, etc. Just
get the mechanical part to work. Then begin to apply power. See what
needs to be changed mechanically, then when that works as you want,
step up the power, voltage and what ever you want. Engineering is not
a one step operation it is is working through the problem over and
over until you get it right.

Good luck. Sounds like a fun project.

Paul




FWIW.
This is not a prototype for a production, it's probably just for me.
I'm looking at cordless drills with a two-piece chuck (as opposed to
the ordinarily much more desirable single sleeve ratcheting type).
Apparently the crummy two-piece chucks do not include a locking
mechanism on the shaft. I ordered a Skil 18 V drill without
batteries dirt cheap for $20 total. I'll plan to use some 18 V
lithium-ion batteries if that drill will work. If possible, maybe
even better would be to use a 36 V lithium-ion battery for which I
already have a battery holder and charger, somehow electrically
splitting it into two 18 V halves. Then again, ack, that 36 V
battery requires a special trigger switch with output properties
that will have to match the 18 V Skil motor. And then that trigger
switch probably won't work with the 18 V battery half I envision
making out of the 36 V battery. So I'll have to buy another
lithium-ion cordless drill kit just to get the batteries, the
holder, and the trigger switch for use with the 18 V lithium-ion
batteries (assuming all lithium-ion batteries have more than
positive and negative output leads). So I might settle for NiMH. Or
whatever.