Sorry. R4 is a 1/4" bearing rated at a dynamic load capacity of 486 lbs, the r4a is a 1/4" bearing with a dynamic load capacity of 545 lbs. The r4a is a slightly bigger od. I plan on replacing with an r6 which is a 3/8" bearing with dynamic rating of 750 lbs.
The shaft doesnt run at constant...
Guys:
I am having really trouble determing the bearing I need for this application. I have been using an R4, but replaced it with an R4a bearing. Both deep groove.
The axial (thrust) load is 300 lbs, the radial load is about 50 lbs. Rather then angular contact, or thrust bearing I need to...
xr7755:
I guess I should have explained more of the issue. I need to advance as quickly as possible which requires a 4:1 ratio. The return is unloaded and needs to happen very fast. I am limited in motor speed, and do not want to have an incredible amount of inertia, to dissipate, I thought...
cyrsta1c1ear:
One more question, I see how everything locks in the one mode, but in the free wheel mode, what keeps the ring gear from free wheeling with the planet carrier ? thanks in advance
Chris
cyrsta1c1ear:
Thanks for the answer, for some reason I did not see it. Your comment on patented technology is right-on. Is this solution patented or has it been around for a while ? If it is patented, do you have the number ?
My preference is to steer clear of patented technology. Thanks
Chris
Guys:
I am trying to make a very simple low power (less then 100 in-lbs max torque) all mechanical drive which couples to a lead screw at a 4:1 ratio in the forward direction and a 1:1 ratio (or lesser ratio) in the reverse direction. The motor is reversible so I thought I could use (2) sprag...
