You might get very lucky and someone will recognize the exact model crankset and bottom bracket. If so, they will hopefully know enough to explain it to you.
Or you could post the exact make and model name of both. Then chances greatly improve for you to get an answer.
2 Comments
Looks you’re missing [cone spacers](https://www.albes.com/products/profile-cone-spacers?variant=31767019651146&gad_source=1&gclid=Cj0KCQjw0MexBhD3ARIsAEI3WHI0J6vzbrSbk48AhlSAaEeD4kFtdxBWfxJJ4PlQkyZAgJyeJpro9lAaAkzHEALw_wcB).
You might get very lucky and someone will recognize the exact model crankset and bottom bracket. If so, they will hopefully know enough to explain it to you.
Or you could post the exact make and model name of both. Then chances greatly improve for you to get an answer.