RBI Brand - 1 1/4" Free Spin Axle Bearing. A little better quality bearing compared to most China bearings.
 
Product Specs:
Bore Diameter: 1-1/4 in
Outside Diameter: 62 mm (2.440")
Outer Race Width: 20 mm (.787")
Total Length: 38.1 mm (1.5")
Locking Device: Set Screw
Free Spinning / Oil Filled