R12-2RS American/Mid 19mm BMX Sealed Bearing - 41.2mm-19mm-11.1mm
$ 6.99
This is a 19mm Mid/American bearing WITHOUT CUP. This bearing will work with 19mm spindles and fits frames or bearing cups with 41.2mm ID.
This is one bearing; if you need a pair, buy 2!
Be sure to measure your old bearing to ensure this will fit. The appearance of this part may vary slightly from the photo.