Recent content by okok2009

Thanks for Alansimpson. I find one from Igus bushing for this application.

I am looking for a sort of linear sleeve bearing on a lead screw shaft for support. It allows the lead screw inside to move in the axial direction freely. Does anyone know who is manufacturer to make that? PS: I prefer not modifying the lead screw into partial round shaft Thanks.

I have a pivot shaft with both ends sliding in two slotted holes. Just wonder what kind of bearing I can apply here to get free sliding movement along the slotted holes. The shaft is rotating very slowly and there will be some radial load on the shaft ends interfacing with the slotted holes...

Thanks for your reply, Handleman. Sorry to forget to tell you the motor we are using is a DC rotary stepper motor. The power off brake is separate from the motor unfortunately.

I am looking for an electrical servo brake for the motor. Once the power is off, it will lock the motor output shaft at its position. Once the power is on, the brake will be energized and released to transmit the torque over the shaft. Also, the brake will have some kind of manual release once...

Hi, Thanks for you guys' comments. A stepper motor has been chosen now. We are going to use a power-off brake to lock the lifting position when it is off. But also a manual override of the adjustment is also required once the motor turns off. Is there any clutch or system which can engage with...

Hi, I might have a dumb question. If a rotary stepper motor is connected to a lead screw system to lift something up, will the pushing axial load be transfered to motor itself? Will the load be supported by the motor partially? Thanks.

Just checked with PEM. They mentioned that floating inserts can not be manufactured. Need to find something else.

Thanks for everyone's help and info. I just found one item from PEM. It is a custom design part shown in their SI catalog. It is called molded-in floating inserts. It can take up to 0.8mm misaligment like their floating nut for sheet metal.

We don't have a specific desire for the insertion method for the floating insert if there is one. Right now, inserts are molded-in.

I am looking for a brass insert which can be floating in the plastics to compensate the center misalignment with the screw. Is it existing from some catalog? Thanks.