These hardened steel BB bearings are designed to work with any crank that has a 19mm axle and will work with your existing BB cone spacers!
KHEbikes BMX MID Bottom Bracket BB-Crank-Axle-Set 19mm 48T Splined Crank Axle
Blank BMX 3pc Crank set + Sealed Mid Bottom Bracket, New Unused, 165 Or 175mm
Odyssey BMX 22mm MID Bottom Bracket - Black
D20 BMX Euro Bottom Bracket for 19mm axle
KHEbikes BMX US Bottom Bracket BB-Axle-set 19mm 8T Splined Axle - Sealed Bearing
R12 Bearing BMX Sealed Bottom Bracket R12-2RS (19.05*41.28*11.11)