1926 Timken numbers for Warford transmissions:
Name Timken #
rear main cup 11315
rear main cone 11157
spigot cone 10062
rear front main cup 28315
rear front main cone 28138
front front main cup 19283
front front main cone 19138
countershaft cup 07204
countershaft cone 07098
There is a note in the warford book that these bearings interchange with those in previous models, however, you have to replace both the cup and the cone at the same time because these new "type f" bearings will not fit properly with the old style races and vice-versa.