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Ball Mate in assembly
aaron_2 Member Posts: 26 PRO
I created a bearing which I shared publicly. I was trying to create the mates so that it would work properly. Unfortunately I was unable to figure it out. Is there anyone who would like to help me on this?
andrew_troup Member, Mentor Posts: 1,584 ✭✭✭✭✭The cage should rotate at half the speed of whichever raceway spins. A gear mate will achieve this, as billy says.5
pete_yodis OS Professional, Mentor Posts: 666 ✭✭✭Andrew_Troup said:The cage should rotate at half the speed of whichever raceway spins. A gear mate will achieve this, as billy says.
I too think you'll need a revolute mate connector to the bearing race and then mate the ball bearings to race.
You could define a vector in the ball bearing that represents the rotating axis as shown above and rotate one bearing about the center. But then would the pattern update properly? This is really bad design intent and would not win you any prizes at a county fair if you were to show this approach off in public.
Put the raceway in the model, or at a minimum, add a sketch that represents a raceway that'll rotate about the inner bearing and attach the bearing to a rotating sketch. You won't be able to see the balls roll, but you could add a gear mate connector between the sketch and the ball bearings. If this is really your ambition, try building a planetary gear stack-up. This way you can see the planetary gears rotate.
FYI, there's a big push to have vector layout sketches to help define assemblies & motion. In your case I think this approach would have helped you out. In other words, create a layout sketch for the motion, and then hang the masses on the layout sketch. It's a different approach than what you are experiencing and I think you're model is a great case study for this other layout sketch technique.