3d printable sailing block/pulley

Uses a soft-shackle and 6203 bearing

My soft-shackles are 60cm of 2.5mm dyneema.

Printed for testing in PLA and tested as shown in photos, I don't have any numbers on how much it can take but it was quite difficult to crank the jack. 

Made in onshape https://cad.onshape.com/documents/3ec6fc9f2ca49799f69467f1/w/3c48dabd28c0ec6deddff5f2/e/2cdd5a6b032a067339864914?renderMode=0&uiState=6a1c5271c7e9a077fe284d9c