Part Ref: 22237-2RS-B
Bearing ID: 22.2mm
Bearing OD: 37mm
Bearing Thickness: 8mm/11.5mm
Used On: SRAM/GXP
Material: Chromium Steel GCR15 (Race & Balls)
Grease: SINOPEC HTHS Bearing Grease
Seal: Double-sealed 2RS
Note, There are 2 types of SRAM GXP BB Bearings - this is one, and the part ref 22237-2RS is the other.  
This bearing has extended inner on both sides, 0.5mm one side, and 3.0mm on the other.  The longer inner race extension also is tapered by 7 degrees.