I am looking into buying a brake motor to support a vertical load. Our current design is a 200 to 1 two stage reduction gear reducer. The torque at the output of the reducer is around 3500in-lbs. I am looking at a leeson brake motor catalog #114167 that's brake can support 72in-lbs of torque...
Do you agree that the manufacturers spec is exceeded? I'm making sure that I'm understanding everything correctly. It's one of those situations where in my mind they are exceeding it so bad that it is making me second guess my thinking. If the manufacturer specifies an input h.p. of 0.68 then...
I'm currently in the process of redesigning a winch system and wanted to go over some numbers and make sure I'm thinking about it correctly. The current design has been in place for about 10 years but probably wasn't used but once or twice a month for about 10 to 15 minutes each time. I've...
Thanks for the reply. I do need to clarify that I'm not concerned about any mechanical advantage. Our current system doesn't need it. Each pulley is only used to change direction. My question is really based on how much load is each pulley having to bear? Like I said it makes sense that if...
I'm trying to find bearing pressure on a pulley so that I can select the proper one for the design. I know that the bearing pressure will be the (line tension x angle factor)/(shaft diameter x hub width). In our case the angle factor is 2 because the angle between the lines coming off of the...
Brian,
Just out of curiosity do you know where you got that equation? Since I am writing a report I would like to back it up with some type of source just in case anyone questions the validity of my findings. Thanks again for the help.
Brian
I'm confused on what this equation is really giving me. I've attached a picture for more clarification of what I'm talking about. What I am gathering (which could be wrong) is that if I make a single wrap around a winch drum (cylinder) and input a force T2, then T1 is the force on the...
I'm in the process of writing a report on a winch drum failure. Our winches are wrapped around the drum and then terminated with a u-bolt on the flange of the drum. The customer is stating that the cable slipped out from under the u-bolt. This may have happened but I want to know how I could...
Thanks for the quick responses. When you guys answered something clicked in my head. (I don't know if that's a good or bad thing). Check out the attached file and see if it looks a little better. The idea that I had was to sum forces and calculate the reaction forces at both tires (FA and...
I have a question about something I have been working on lately. I want to make sure that I have the concepts right. The basic question is I have a trailer with a large mast attached to it and am wondering if it will tip over or not. I've attached a picture for reference and some...
