Bicycle wheel hub ball bearing MR19285-2RS(19x28x5 mm)
Bore size: 19.00 mm
Outer size: 28.00 mm
Width: 5.00 mm
Chrome steel GCr5 material for races and balls
ABEC-3 grade
Nylon-caged ball bearing
Lubricated with Mobil Kyodo Yushi Multemp PS#2 grease