Data from Table 1 of Stella, White, and Rosner 1986 (ApJ, 308, 669).  First column is the rotation frequencies, and second column is the maximum X-ray luminosities, for Be X-ray binaries:

0.001198 1e34
0.002469 5e36
0.003425 6e36
0.003676 3e35
0.009615 2e37
0.07143  4e38
0.1075   1e37
0.2273   2e37
0.2778   8e36
14.493   1.2e39