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
Tribal BMX 19mm Mid Bottom Bracket
Odyssey BMX 22mm MID Bottom Bracket - Black
Ilegal Mid Bottom Bracket
POLSO Euro BB BMX Bike Bottom Bracket Bike Parts BB for BMX Bike, 19MM, Black