My bad, 13 different capable sizes!!!
http://www.bearingbuddy.com/select.html
HOW TO SELECT THE RIGHT MODEL
Pick a genuine Bearing Buddy® to match your hub bore.
To convert a model number to the hub bore in inches (or dust cap diameter), simply place a decimal point after the first digit in the model number.
Model #1980, for example, fits a 1.980” bore hole diameter.
Our 2080T (threaded model 2080) will fit the Reliable oil bath unit that is on many of the EZ Loader trailers. Model *Hub Bore (mm) Outer Bearing Cone *Outer Bearing Cup (race) *
1980/1980A* 50.41 L-44643, L-44649, L-44640 *L44610 *
1781 *45.33 LM-11949 *LM-11910 *
2328 *59.25 LM-67048, hub not counterbored *LM-67010 *
1810 *45.06 LM-12749 *LM-12711 *
1938 *49.34 09067 *09194, 95, 96 *
1968 *50.08 M-12649, 07100 *M-12610, 07196 *
1980T *N/A All internally threaded hubs *
2047 *52.08 Various *07204 *
2080 *52.92 900 series *900 series *
2240 *56.98 1700 series *1729 *
2441 *62.08 LM-67048, hub counterbored, 15123 and others *LM-67010, 15245 *
2562 65.07 48548 48510
2717 *69.06 14124, 14125A 14276 *
A somewhat less accurate, alternative sizing method, uses our Size Gauge Card. *The card can be used to select a Bearing Buddy® model based on the size of your dust cap.
*The 1980 and 1980A both fit a hub bore of 1.980 inches, however the 1980A has a blue ring which acts as a visual lubricant level indicator inside the hub.
MORAL OF THIS STORY IS:
YOU CAN'T JUST BUY THEM AND PUT THEM IN