bill said:
the ones i have are HARWAL brand and marked 1.188 x 1.750 x .250
Interesting.
1.188" is 30mm which is correct for the crank, but the OD and depth are imperial measurements.
Mine are marked as I remembered 1.125x 1.75 x .25
The ID ( inch and an eighth) is only 6 thou tighter than the metric ID